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Home » Modeling » EMF » [CDO] mapping error with DB Store and StringToStringMap + List
[CDO] mapping error with DB Store and StringToStringMap + List [message #426305] Mon, 22 December 2008 22:49 Go to next message
Kai Schlamp is currently offline Kai SchlampFriend
Messages: 344
Registered: July 2009
Senior Member
This is a multi-part message in MIME format.
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Hello.

I have a strange mapping error (exceptions below) with the simple test
ecore model below.
The mapping results in a SQL Exception with Derby Store, when both the
StringToStringMap reference and the tags list attribute is in the model.
When only one of both is present then the mapping works correctly.
I am not sure ... is this a bug or a incompatible ecore model?
I also attached a small sample project.

Best regards,
Kai

Ecore model:

<?xml version="1.0" encoding="UTF-8"?>
<ecore:EPackage xmi:version="2.0"
xmlns:xmi="http://www.omg.org/XMI"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
nsURI="http://cdo2.tester.org/cdo2model"
nsPrefix="org.cdo2.tester.model">
<eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
<eStructuralFeatures xsi:type="ecore:EReference" name="documents"
upperBound="-1"
eType="#//Document" containment="true"/>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="Document">
<eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
<eStructuralFeatures xsi:type="ecore:EReference" name="propertiesM"
upperBound="-1"
eType="#//StringToStringMap" containment="true"/>
<eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
upperBound="-1" eType="ecore:EDataType
http://www.eclipse.org/emf/2002/Ecore#//EString"/>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
instanceClassName="java.util.Map$Entry">
<eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
<eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
</eClassifiers>
</ecore:EPackage>


Exception:
[ERROR] SQL Exception: VALUES clause must contain at least one element.
Empty elements are not allowed.
org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
contain at least one element. Empty elements are not allowed.
at
org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
at
org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
at
org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
at
org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
at
org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
at
org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
at
org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
at
org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
at
org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
at
org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
at
org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
at
org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
at
org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
at
org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
at
org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: SQL Exception: VALUES clause must contain at least one
element. Empty elements are not allowed.
at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn Source)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
Source)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
Source)
at org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
Source)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
at
org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
... 23 more
[ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
Exception: VALUES clause must contain at least one element. Empty
elements are not allowed.
at
org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
at
org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
at
org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
at
org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
at
org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
at
org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
at
org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
at
org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
at
org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
at
org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
at
org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
at
org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
at
org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
at
org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
at
org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: SQL Exception: VALUES clause must contain at least one
element. Empty elements are not allowed.
at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn Source)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
Source)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
Source)
at org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
Source)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
at
org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
... 23 more


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Re: [CDO] mapping error with DB Store and List [message #426306 is a reply to message #426305] Mon, 22 December 2008 23:17 Go to previous messageGo to next message
Kai Schlamp is currently offline Kai SchlampFriend
Messages: 344
Registered: July 2009
Senior Member
Oh, I am sorry ... I was wrong ... the exception also occurs when only
the "tags" attribute exists.
So a simple list just seem to break the mapping of DB Derby Store in my
case. Is this a bug?
In between ... I am using CDO 2M4.

Best regards,
Kai

The new Ecore model that leads to the exception:

<?xml version="1.0" encoding="UTF-8"?>
<ecore:EPackage xmi:version="2.0"
xmlns:xmi="http://www.omg.org/XMI"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
nsURI="http://cdo2.tester.org/cdo2model"
nsPrefix="org.cdo2.tester.model">
<eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
<eStructuralFeatures xsi:type="ecore:EReference" name="documents"
upperBound="-1"
eType="#//Document" containment="true"/>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="Document">
<eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
ordered="false" unique="false"
upperBound="-1" eType="ecore:EDataType
http://www.eclipse.org/emf/2002/Ecore#//EString"
defaultValueLiteral="nothing"/>
</eClassifiers>
</ecore:EPackage>


Kai Schlamp schrieb:
> Hello.
>
> I have a strange mapping error (exceptions below) with the simple test
> ecore model below.
> The mapping results in a SQL Exception with Derby Store, when both the
> StringToStringMap reference and the tags list attribute is in the model.
> When only one of both is present then the mapping works correctly.
> I am not sure ... is this a bug or a incompatible ecore model?
> I also attached a small sample project.
>
> Best regards,
> Kai
>
> Ecore model:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <ecore:EPackage xmi:version="2.0"
> xmlns:xmi="http://www.omg.org/XMI"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
> nsURI="http://cdo2.tester.org/cdo2model"
> nsPrefix="org.cdo2.tester.model">
> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
> <eStructuralFeatures xsi:type="ecore:EReference" name="documents"
> upperBound="-1"
> eType="#//Document" containment="true"/>
> </eClassifiers>
> <eClassifiers xsi:type="ecore:EClass" name="Document">
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
> <eStructuralFeatures xsi:type="ecore:EReference" name="propertiesM"
> upperBound="-1"
> eType="#//StringToStringMap" containment="true"/>
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
> upperBound="-1" eType="ecore:EDataType
> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
> </eClassifiers>
> <eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
> instanceClassName="java.util.Map$Entry">
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
> </eClassifiers>
> </ecore:EPackage>
>
>
> Exception:
> [ERROR] SQL Exception: VALUES clause must contain at least one element.
> Empty elements are not allowed.
> org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
> contain at least one element. Empty elements are not allowed.
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>
> at
> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>
> at
> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>
> at
> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>
> at
> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>
> at
> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>
> at
> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>
> at
> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>
> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
> at
> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>
> at
> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>
> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
> Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
> Caused by: SQL Exception: VALUES clause must contain at least one
> element. Empty elements are not allowed.
> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
> Source)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
> Source)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
> Source)
> at
> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown Source)
> at
> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own
> Source)
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>
> ... 23 more
> [ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
> Exception: VALUES clause must contain at least one element. Empty
> elements are not allowed.
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>
> at
> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>
> at
> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>
> at
> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>
> at
> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>
> at
> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>
> at
> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>
> at
> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>
> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
> at
> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>
> at
> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>
> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
> Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
> Caused by: SQL Exception: VALUES clause must contain at least one
> element. Empty elements are not allowed.
> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
> Source)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
> Source)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
> Source)
> at
> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown Source)
> at
> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own
> Source)
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>
> ... 23 more
>
Re: [CDO] mapping error with DB Store and List in Milestone 4 [message #426307 is a reply to message #426306] Mon, 22 December 2008 23:37 Go to previous messageGo to next message
Kai Schlamp is currently offline Kai SchlampFriend
Messages: 344
Registered: July 2009
Senior Member
Ok, I tried the same with CDO 2M3 and the appropriate older Net4J
dependency and now everything seems to work fine.
So it seems that it's a bug in the M4 release.
Bug report: https://bugs.eclipse.org/bugs/show_bug.cgi?id=259532

Greets,
Kai


Kai Schlamp schrieb:
> Oh, I am sorry ... I was wrong ... the exception also occurs when only
> the "tags" attribute exists.
> So a simple list just seem to break the mapping of DB Derby Store in my
> case. Is this a bug?
> In between ... I am using CDO 2M4.
>
> Best regards,
> Kai
>
> The new Ecore model that leads to the exception:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <ecore:EPackage xmi:version="2.0"
> xmlns:xmi="http://www.omg.org/XMI"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
> nsURI="http://cdo2.tester.org/cdo2model"
> nsPrefix="org.cdo2.tester.model">
> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
> <eStructuralFeatures xsi:type="ecore:EReference" name="documents"
> upperBound="-1"
> eType="#//Document" containment="true"/>
> </eClassifiers>
> <eClassifiers xsi:type="ecore:EClass" name="Document">
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
> ordered="false" unique="false"
> upperBound="-1" eType="ecore:EDataType
> http://www.eclipse.org/emf/2002/Ecore#//EString"
> defaultValueLiteral="nothing"/>
> </eClassifiers>
> </ecore:EPackage>
>
>
> Kai Schlamp schrieb:
>> Hello.
>>
>> I have a strange mapping error (exceptions below) with the simple test
>> ecore model below.
>> The mapping results in a SQL Exception with Derby Store, when both the
>> StringToStringMap reference and the tags list attribute is in the model.
>> When only one of both is present then the mapping works correctly.
>> I am not sure ... is this a bug or a incompatible ecore model?
>> I also attached a small sample project.
>>
>> Best regards,
>> Kai
>>
>> Ecore model:
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <ecore:EPackage xmi:version="2.0"
>> xmlns:xmi="http://www.omg.org/XMI"
>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
>> nsURI="http://cdo2.tester.org/cdo2model"
>> nsPrefix="org.cdo2.tester.model">
>> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
>> <eStructuralFeatures xsi:type="ecore:EReference" name="documents"
>> upperBound="-1"
>> eType="#//Document" containment="true"/>
>> </eClassifiers>
>> <eClassifiers xsi:type="ecore:EClass" name="Document">
>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
>> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>> <eStructuralFeatures xsi:type="ecore:EReference"
>> name="propertiesM" upperBound="-1"
>> eType="#//StringToStringMap" containment="true"/>
>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
>> upperBound="-1" eType="ecore:EDataType
>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>> </eClassifiers>
>> <eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
>> instanceClassName="java.util.Map$Entry">
>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
>> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
>> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>> </eClassifiers>
>> </ecore:EPackage>
>>
>>
>> Exception:
>> [ERROR] SQL Exception: VALUES clause must contain at least one
>> element. Empty elements are not allowed.
>> org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
>> contain at least one element. Empty elements are not allowed.
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>
>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>> at
>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>
>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
>> Source)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>> at java.lang.Thread.run(Unknown Source)
>> Caused by: SQL Exception: VALUES clause must contain at least one
>> element. Empty elements are not allowed.
>> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
>> Source)
>> at
>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>> Source)
>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>> at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own
>> Source)
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>
>> ... 23 more
>> [ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
>> Exception: VALUES clause must contain at least one element. Empty
>> elements are not allowed.
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>
>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>> at
>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>
>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
>> Source)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>> at java.lang.Thread.run(Unknown Source)
>> Caused by: SQL Exception: VALUES clause must contain at least one
>> element. Empty elements are not allowed.
>> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
>> Source)
>> at
>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>> Source)
>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>> at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own
>> Source)
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>
>> ... 23 more
>>
Re: [CDO] mapping error with DB Store and StringToStringMap + List [message #426308 is a reply to message #426305] Tue, 23 December 2008 08:28 Go to previous messageGo to next message
Victor Roldan Betancort is currently offline Victor Roldan BetancortFriend
Messages: 524
Registered: July 2009
Senior Member
Hi Kai,

in your model "tags" is defined as a multivalued EAttribute.
Unfortunately, these aren't yet supported for DBStore. The core
functionality to support it has been recently introduced in M4, but not
the DBStore mapping implementation:

228190: Provide support for multivalued attributes
https://bugs.eclipse.org/bugs/show_bug.cgi?id=228190

254453: [DB] Support for multivalued attributes
https://bugs.eclipse.org/bugs/show_bug.cgi?id=254453

Kai Schlamp escribió:
> Hello.
>
> I have a strange mapping error (exceptions below) with the simple test
> ecore model below.
> The mapping results in a SQL Exception with Derby Store, when both the
> StringToStringMap reference and the tags list attribute is in the model.
> When only one of both is present then the mapping works correctly.
> I am not sure ... is this a bug or a incompatible ecore model?
> I also attached a small sample project.
>
> Best regards,
> Kai
>
> Ecore model:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <ecore:EPackage xmi:version="2.0"
> xmlns:xmi="http://www.omg.org/XMI"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
> nsURI="http://cdo2.tester.org/cdo2model"
> nsPrefix="org.cdo2.tester.model">
> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
> <eStructuralFeatures xsi:type="ecore:EReference" name="documents"
> upperBound="-1"
> eType="#//Document" containment="true"/>
> </eClassifiers>
> <eClassifiers xsi:type="ecore:EClass" name="Document">
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
> <eStructuralFeatures xsi:type="ecore:EReference" name="propertiesM"
> upperBound="-1"
> eType="#//StringToStringMap" containment="true"/>
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
> upperBound="-1" eType="ecore:EDataType
> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
> </eClassifiers>
> <eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
> instanceClassName="java.util.Map$Entry">
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
> eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
> </eClassifiers>
> </ecore:EPackage>
>
>
> Exception:
> [ERROR] SQL Exception: VALUES clause must contain at least one element.
> Empty elements are not allowed.
> org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
> contain at least one element. Empty elements are not allowed.
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>
> at
> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>
> at
> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>
> at
> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>
> at
> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>
> at
> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>
> at
> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>
> at
> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>
> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
> at
> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>
> at
> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>
> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
> Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
> Caused by: SQL Exception: VALUES clause must contain at least one
> element. Empty elements are not allowed.
> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
> Source)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
> Source)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
> Source)
> at
> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown Source)
> at
> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own
> Source)
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>
> ... 23 more
> [ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
> Exception: VALUES clause must contain at least one element. Empty
> elements are not allowed.
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>
> at
> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>
> at
> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>
> at
> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>
> at
> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>
> at
> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>
> at
> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>
> at
> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>
> at
> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>
> at
> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>
> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
> at
> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>
> at
> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>
> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
> Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
> Caused by: SQL Exception: VALUES clause must contain at least one
> element. Empty elements are not allowed.
> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
> Source)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
> Source)
> at
> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
> Source)
> at
> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown Source)
> at
> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own
> Source)
> at
> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>
> ... 23 more
>
Re: [CDO] mapping error with DB Store and StringToStringMap + List [message #426310 is a reply to message #426308] Tue, 23 December 2008 09:02 Go to previous messageGo to next message
Eike Stepper is currently offline Eike StepperFriend
Messages: 6475
Registered: July 2009
Senior Member
Kai, Vik,

I think your explanation is right.
Maybe Stefan wants to add something, but today is his birthday!
Live long and prosper for Stefan and the DBStore ;-)

Cheers
/Eike

----
http://thegordian.blogspot.com



Víctor Roldán Betancort schrieb:
> Hi Kai,
>
> in your model "tags" is defined as a multivalued EAttribute.
> Unfortunately, these aren't yet supported for DBStore. The core
> functionality to support it has been recently introduced in M4, but
> not the DBStore mapping implementation:
>
> 228190: Provide support for multivalued attributes
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=228190
>
> 254453: [DB] Support for multivalued attributes
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=254453
>
> Kai Schlamp escribió:
>> Hello.
>>
>> I have a strange mapping error (exceptions below) with the simple
>> test ecore model below.
>> The mapping results in a SQL Exception with Derby Store, when both
>> the StringToStringMap reference and the tags list attribute is in the
>> model.
>> When only one of both is present then the mapping works correctly.
>> I am not sure ... is this a bug or a incompatible ecore model?
>> I also attached a small sample project.
>>
>> Best regards,
>> Kai
>>
>> Ecore model:
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <ecore:EPackage xmi:version="2.0"
>> xmlns:xmi="http://www.omg.org/XMI"
>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
>> nsURI="http://cdo2.tester.org/cdo2model"
>> nsPrefix="org.cdo2.tester.model">
>> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
>> <eStructuralFeatures xsi:type="ecore:EReference" name="documents"
>> upperBound="-1"
>> eType="#//Document" containment="true"/>
>> </eClassifiers>
>> <eClassifiers xsi:type="ecore:EClass" name="Document">
>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
>> eType="ecore:EDataType
>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>> <eStructuralFeatures xsi:type="ecore:EReference"
>> name="propertiesM" upperBound="-1"
>> eType="#//StringToStringMap" containment="true"/>
>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
>> upperBound="-1" eType="ecore:EDataType
>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>> </eClassifiers>
>> <eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
>> instanceClassName="java.util.Map$Entry">
>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
>> eType="ecore:EDataType
>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
>> eType="ecore:EDataType
>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>> </eClassifiers>
>> </ecore:EPackage>
>>
>>
>> Exception:
>> [ERROR] SQL Exception: VALUES clause must contain at least one
>> element. Empty elements are not allowed.
>> org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
>> contain at least one element. Empty elements are not allowed.
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>
>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>> at
>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>
>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
>> Source)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>> Source)
>> at java.lang.Thread.run(Unknown Source)
>> Caused by: SQL Exception: VALUES clause must contain at least one
>> element. Empty elements are not allowed.
>> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
>> Source)
>> at
>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>> Source)
>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>> at
>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>
>> ... 23 more
>> [ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
>> Exception: VALUES clause must contain at least one element. Empty
>> elements are not allowed.
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>
>> at
>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>
>> at
>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>
>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>> at
>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>
>> at
>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>
>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
>> Source)
>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>> Source)
>> at java.lang.Thread.run(Unknown Source)
>> Caused by: SQL Exception: VALUES clause must contain at least one
>> element. Empty elements are not allowed.
>> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
>> Source)
>> at
>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>> Source)
>> at
>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>> Source)
>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>> at
>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
>> at
>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>
>> ... 23 more
>>


Re: [CDO] mapping error with DB Store and StringToStringMap + List [message #426311 is a reply to message #426310] Tue, 23 December 2008 09:04 Go to previous messageGo to next message
Victor Roldan Betancort is currently offline Victor Roldan BetancortFriend
Messages: 524
Registered: July 2009
Senior Member
Hooray!

Eike Stepper escribió:
> Kai, Vik,
>
> I think your explanation is right.
> Maybe Stefan wants to add something, but today is his birthday!
> Live long and prosper for Stefan and the DBStore ;-)
>
> Cheers
> /Eike
>
> ----
> http://thegordian.blogspot.com
>
>
>
> Víctor Roldán Betancort schrieb:
>> Hi Kai,
>>
>> in your model "tags" is defined as a multivalued EAttribute.
>> Unfortunately, these aren't yet supported for DBStore. The core
>> functionality to support it has been recently introduced in M4, but
>> not the DBStore mapping implementation:
>>
>> 228190: Provide support for multivalued attributes
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=228190
>>
>> 254453: [DB] Support for multivalued attributes
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=254453
>>
>> Kai Schlamp escribió:
>>> Hello.
>>>
>>> I have a strange mapping error (exceptions below) with the simple
>>> test ecore model below.
>>> The mapping results in a SQL Exception with Derby Store, when both
>>> the StringToStringMap reference and the tags list attribute is in the
>>> model.
>>> When only one of both is present then the mapping works correctly.
>>> I am not sure ... is this a bug or a incompatible ecore model?
>>> I also attached a small sample project.
>>>
>>> Best regards,
>>> Kai
>>>
>>> Ecore model:
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <ecore:EPackage xmi:version="2.0"
>>> xmlns:xmi="http://www.omg.org/XMI"
>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
>>> nsURI="http://cdo2.tester.org/cdo2model"
>>> nsPrefix="org.cdo2.tester.model">
>>> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
>>> <eStructuralFeatures xsi:type="ecore:EReference" name="documents"
>>> upperBound="-1"
>>> eType="#//Document" containment="true"/>
>>> </eClassifiers>
>>> <eClassifiers xsi:type="ecore:EClass" name="Document">
>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
>>> eType="ecore:EDataType
>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>> <eStructuralFeatures xsi:type="ecore:EReference"
>>> name="propertiesM" upperBound="-1"
>>> eType="#//StringToStringMap" containment="true"/>
>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
>>> upperBound="-1" eType="ecore:EDataType
>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>> </eClassifiers>
>>> <eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
>>> instanceClassName="java.util.Map$Entry">
>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
>>> eType="ecore:EDataType
>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
>>> eType="ecore:EDataType
>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>> </eClassifiers>
>>> </ecore:EPackage>
>>>
>>>
>>> Exception:
>>> [ERROR] SQL Exception: VALUES clause must contain at least one
>>> element. Empty elements are not allowed.
>>> org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
>>> contain at least one element. Empty elements are not allowed.
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>>
>>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>>> at
>>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>>
>>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
>>> Source)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>>> Source)
>>> at java.lang.Thread.run(Unknown Source)
>>> Caused by: SQL Exception: VALUES clause must contain at least one
>>> element. Empty elements are not allowed.
>>> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>>> Source)
>>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>>> at
>>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>>
>>> ... 23 more
>>> [ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
>>> Exception: VALUES clause must contain at least one element. Empty
>>> elements are not allowed.
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>>
>>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>>> at
>>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>>
>>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
>>> Source)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>>> Source)
>>> at java.lang.Thread.run(Unknown Source)
>>> Caused by: SQL Exception: VALUES clause must contain at least one
>>> element. Empty elements are not allowed.
>>> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>>> Source)
>>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>>> at
>>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>>
>>> ... 23 more
>>>
Re: [CDO] mapping error with DB Store and StringToStringMap + List [message #426319 is a reply to message #426310] Tue, 23 December 2008 13:32 Go to previous messageGo to next message
Simon Mc Duff is currently offline Simon Mc DuffFriend
Messages: 596
Registered: July 2009
Senior Member
humm.. I'm not sure about that. A Map of StringToStringMap is in fact a
list of a structure that have two String. I don't see any multi-valued
list in there..

class StringToString
String key;
String value;

Khai said it was working in the previous version.. does it mean he
didn't have any error... or it was working... ?

Simon

Eike Stepper wrote:
> Kai, Vik,
>
> I think your explanation is right.
> Maybe Stefan wants to add something, but today is his birthday!
> Live long and prosper for Stefan and the DBStore ;-)
>
> Cheers
> /Eike
>
> ----
> http://thegordian.blogspot.com
>
>
>
> Víctor Roldán Betancort schrieb:
>> Hi Kai,
>>
>> in your model "tags" is defined as a multivalued EAttribute.
>> Unfortunately, these aren't yet supported for DBStore. The core
>> functionality to support it has been recently introduced in M4, but
>> not the DBStore mapping implementation:
>>
>> 228190: Provide support for multivalued attributes
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=228190
>>
>> 254453: [DB] Support for multivalued attributes
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=254453
>>
>> Kai Schlamp escribió:
>>> Hello.
>>>
>>> I have a strange mapping error (exceptions below) with the simple
>>> test ecore model below.
>>> The mapping results in a SQL Exception with Derby Store, when both
>>> the StringToStringMap reference and the tags list attribute is in the
>>> model.
>>> When only one of both is present then the mapping works correctly.
>>> I am not sure ... is this a bug or a incompatible ecore model?
>>> I also attached a small sample project.
>>>
>>> Best regards,
>>> Kai
>>>
>>> Ecore model:
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <ecore:EPackage xmi:version="2.0"
>>> xmlns:xmi="http://www.omg.org/XMI"
>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="cdo2model"
>>> nsURI="http://cdo2.tester.org/cdo2model"
>>> nsPrefix="org.cdo2.tester.model">
>>> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
>>> <eStructuralFeatures xsi:type="ecore:EReference" name="documents"
>>> upperBound="-1"
>>> eType="#//Document" containment="true"/>
>>> </eClassifiers>
>>> <eClassifiers xsi:type="ecore:EClass" name="Document">
>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
>>> eType="ecore:EDataType
>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>> <eStructuralFeatures xsi:type="ecore:EReference"
>>> name="propertiesM" upperBound="-1"
>>> eType="#//StringToStringMap" containment="true"/>
>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
>>> upperBound="-1" eType="ecore:EDataType
>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>> </eClassifiers>
>>> <eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
>>> instanceClassName="java.util.Map$Entry">
>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
>>> eType="ecore:EDataType
>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
>>> eType="ecore:EDataType
>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>> </eClassifiers>
>>> </ecore:EPackage>
>>>
>>>
>>> Exception:
>>> [ERROR] SQL Exception: VALUES clause must contain at least one
>>> element. Empty elements are not allowed.
>>> org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
>>> contain at least one element. Empty elements are not allowed.
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>>
>>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>>> at
>>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>>
>>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
>>> Source)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>>> Source)
>>> at java.lang.Thread.run(Unknown Source)
>>> Caused by: SQL Exception: VALUES clause must contain at least one
>>> element. Empty elements are not allowed.
>>> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>>> Source)
>>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>>> at
>>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>>
>>> ... 23 more
>>> [ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
>>> Exception: VALUES clause must contain at least one element. Empty
>>> elements are not allowed.
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>>
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>>
>>> at
>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>>
>>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>>> at
>>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>>
>>> at
>>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>>
>>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn
>>> Source)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>>> Source)
>>> at java.lang.Thread.run(Unknown Source)
>>> Caused by: SQL Exception: VALUES clause must contain at least one
>>> element. Empty elements are not allowed.
>>> at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>>> Source)
>>> at
>>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>>> Source)
>>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>>> at
>>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
>>> at
>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>>
>>> ... 23 more
>>>
Re: [CDO] mapping error with DB Store and StringToStringMap + List [message #426320 is a reply to message #426319] Tue, 23 December 2008 13:34 Go to previous messageGo to next message
Simon Mc Duff is currently offline Simon Mc DuffFriend
Messages: 596
Registered: July 2009
Senior Member
Forgot was I just said... the problem isn't about StringToStringMap but
about
<eClassifiers xsi:type="ecore:EClass" name="Document">
> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
> ordered="false" unique="false"
> upperBound="-1" eType="ecore:EDataType
> http://www.eclipse.org/emf/2002/Ecore#//EString"
> defaultValueLiteral="nothing"/>

Sorry!! Yes it could be related to multivalued attribute bug that VIk
mentionned.

Simon

Simon McDuff wrote:
> humm.. I'm not sure about that. A Map of StringToStringMap is in fact a
> list of a structure that have two String. I don't see any multi-valued
> list in there..
>
> class StringToString
> String key;
> String value;
>
> Khai said it was working in the previous version.. does it mean he
> didn't have any error... or it was working... ?
>
> Simon
>
> Eike Stepper wrote:
>> Kai, Vik,
>>
>> I think your explanation is right.
>> Maybe Stefan wants to add something, but today is his birthday!
>> Live long and prosper for Stefan and the DBStore ;-)
>>
>> Cheers
>> /Eike
>>
>> ----
>> http://thegordian.blogspot.com
>>
>>
>>
>> Víctor Roldán Betancort schrieb:
>>> Hi Kai,
>>>
>>> in your model "tags" is defined as a multivalued EAttribute.
>>> Unfortunately, these aren't yet supported for DBStore. The core
>>> functionality to support it has been recently introduced in M4, but
>>> not the DBStore mapping implementation:
>>>
>>> 228190: Provide support for multivalued attributes
>>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=228190
>>>
>>> 254453: [DB] Support for multivalued attributes
>>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=254453
>>>
>>> Kai Schlamp escribió:
>>>> Hello.
>>>>
>>>> I have a strange mapping error (exceptions below) with the simple
>>>> test ecore model below.
>>>> The mapping results in a SQL Exception with Derby Store, when both
>>>> the StringToStringMap reference and the tags list attribute is in
>>>> the model.
>>>> When only one of both is present then the mapping works correctly.
>>>> I am not sure ... is this a bug or a incompatible ecore model?
>>>> I also attached a small sample project.
>>>>
>>>> Best regards,
>>>> Kai
>>>>
>>>> Ecore model:
>>>>
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <ecore:EPackage xmi:version="2.0"
>>>> xmlns:xmi="http://www.omg.org/XMI"
>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>>> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"
>>>> name="cdo2model"
>>>> nsURI="http://cdo2.tester.org/cdo2model"
>>>> nsPrefix="org.cdo2.tester.model">
>>>> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
>>>> <eStructuralFeatures xsi:type="ecore:EReference"
>>>> name="documents" upperBound="-1"
>>>> eType="#//Document" containment="true"/>
>>>> </eClassifiers>
>>>> <eClassifiers xsi:type="ecore:EClass" name="Document">
>>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
>>>> eType="ecore:EDataType
>>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>>> <eStructuralFeatures xsi:type="ecore:EReference"
>>>> name="propertiesM" upperBound="-1"
>>>> eType="#//StringToStringMap" containment="true"/>
>>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
>>>> upperBound="-1" eType="ecore:EDataType
>>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>>> </eClassifiers>
>>>> <eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
>>>> instanceClassName="java.util.Map$Entry">
>>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
>>>> eType="ecore:EDataType
>>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
>>>> eType="ecore:EDataType
>>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>>> </eClassifiers>
>>>> </ecore:EPackage>
>>>>
>>>>
>>>> Exception:
>>>> [ERROR] SQL Exception: VALUES clause must contain at least one
>>>> element. Empty elements are not allowed.
>>>> org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
>>>> contain at least one element. Empty elements are not allowed.
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>>>
>>>> at
>>>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>>>
>>>> at
>>>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>>>
>>>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>>>> at
>>>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>>>
>>>> at
>>>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>>>
>>>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>>>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>>>> at
>>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn Source)
>>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>>>> Source)
>>>> at java.lang.Thread.run(Unknown Source)
>>>> Caused by: SQL Exception: VALUES clause must contain at least one
>>>> element. Empty elements are not allowed.
>>>> at
>>>> org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>>>> Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>>>> Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>>>> Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>>>> Source)
>>>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown
>>>> Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>>>
>>>> ... 23 more
>>>> [ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
>>>> Exception: VALUES clause must contain at least one element. Empty
>>>> elements are not allowed.
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>>>
>>>> at
>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>>>
>>>> at
>>>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>>>
>>>> at
>>>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>>>
>>>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>>>> at
>>>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>>>
>>>> at
>>>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>>>
>>>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>>>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>>>> at
>>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn Source)
>>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>>>> Source)
>>>> at java.lang.Thread.run(Unknown Source)
>>>> Caused by: SQL Exception: VALUES clause must contain at least one
>>>> element. Empty elements are not allowed.
>>>> at
>>>> org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>>>> Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>>>> Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>>>> Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>>>> Source)
>>>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown
>>>> Source)
>>>> at
>>>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own Source)
>>>> at
>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>>>
>>>> ... 23 more
>>>>
Re: [CDO] mapping error with DB Store and StringToStringMap + List [message #426334 is a reply to message #426320] Wed, 24 December 2008 13:51 Go to previous message
Kai Schlamp is currently offline Kai SchlampFriend
Messages: 344
Registered: July 2009
Senior Member
Yep, it denpends only on the "tags" attribute.
Is is fully independent of the StringToStringMap I found out afterwards.
So it is endeed the mentioned "bug".

Best regards,
Kai

Simon McDuff schrieb:
> Forgot was I just said... the problem isn't about StringToStringMap but
> about
> <eClassifiers xsi:type="ecore:EClass" name="Document">
> > <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
> > ordered="false" unique="false"
> > upperBound="-1" eType="ecore:EDataType
> > http://www.eclipse.org/emf/2002/Ecore#//EString"
> > defaultValueLiteral="nothing"/>
>
> Sorry!! Yes it could be related to multivalued attribute bug that VIk
> mentionned.
>
> Simon
>
> Simon McDuff wrote:
>> humm.. I'm not sure about that. A Map of StringToStringMap is in fact
>> a list of a structure that have two String. I don't see any
>> multi-valued list in there..
>>
>> class StringToString
>> String key;
>> String value;
>>
>> Khai said it was working in the previous version.. does it mean he
>> didn't have any error... or it was working... ?
>>
>> Simon
>>
>> Eike Stepper wrote:
>>> Kai, Vik,
>>>
>>> I think your explanation is right.
>>> Maybe Stefan wants to add something, but today is his birthday!
>>> Live long and prosper for Stefan and the DBStore ;-)
>>>
>>> Cheers
>>> /Eike
>>>
>>> ----
>>> http://thegordian.blogspot.com
>>>
>>>
>>>
>>> Víctor Roldán Betancort schrieb:
>>>> Hi Kai,
>>>>
>>>> in your model "tags" is defined as a multivalued EAttribute.
>>>> Unfortunately, these aren't yet supported for DBStore. The core
>>>> functionality to support it has been recently introduced in M4, but
>>>> not the DBStore mapping implementation:
>>>>
>>>> 228190: Provide support for multivalued attributes
>>>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=228190
>>>>
>>>> 254453: [DB] Support for multivalued attributes
>>>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=254453
>>>>
>>>> Kai Schlamp escribió:
>>>>> Hello.
>>>>>
>>>>> I have a strange mapping error (exceptions below) with the simple
>>>>> test ecore model below.
>>>>> The mapping results in a SQL Exception with Derby Store, when both
>>>>> the StringToStringMap reference and the tags list attribute is in
>>>>> the model.
>>>>> When only one of both is present then the mapping works correctly.
>>>>> I am not sure ... is this a bug or a incompatible ecore model?
>>>>> I also attached a small sample project.
>>>>>
>>>>> Best regards,
>>>>> Kai
>>>>>
>>>>> Ecore model:
>>>>>
>>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>>> <ecore:EPackage xmi:version="2.0"
>>>>> xmlns:xmi="http://www.omg.org/XMI"
>>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>>>> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"
>>>>> name="cdo2model"
>>>>> nsURI="http://cdo2.tester.org/cdo2model"
>>>>> nsPrefix="org.cdo2.tester.model">
>>>>> <eClassifiers xsi:type="ecore:EClass" name="DocumentStore">
>>>>> <eStructuralFeatures xsi:type="ecore:EReference"
>>>>> name="documents" upperBound="-1"
>>>>> eType="#//Document" containment="true"/>
>>>>> </eClassifiers>
>>>>> <eClassifiers xsi:type="ecore:EClass" name="Document">
>>>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="name"
>>>>> eType="ecore:EDataType
>>>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>>>> <eStructuralFeatures xsi:type="ecore:EReference"
>>>>> name="propertiesM" upperBound="-1"
>>>>> eType="#//StringToStringMap" containment="true"/>
>>>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="tags"
>>>>> upperBound="-1" eType="ecore:EDataType
>>>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>>>> </eClassifiers>
>>>>> <eClassifiers xsi:type="ecore:EClass" name="StringToStringMap"
>>>>> instanceClassName="java.util.Map$Entry">
>>>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="key"
>>>>> eType="ecore:EDataType
>>>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>>>> <eStructuralFeatures xsi:type="ecore:EAttribute" name="value"
>>>>> eType="ecore:EDataType
>>>>> http://www.eclipse.org/emf/2002/Ecore#//EString"/>
>>>>> </eClassifiers>
>>>>> </ecore:EPackage>
>>>>>
>>>>>
>>>>> Exception:
>>>>> [ERROR] SQL Exception: VALUES clause must contain at least one
>>>>> element. Empty elements are not allowed.
>>>>> org.eclipse.net4j.db.DBException: SQL Exception: VALUES clause must
>>>>> contain at least one element. Empty elements are not allowed.
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>>>>
>>>>> at
>>>>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>>>>
>>>>> at
>>>>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>>>>
>>>>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>>>>> at
>>>>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>>>>
>>>>> at
>>>>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>>>>
>>>>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>>>>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>>>>> at
>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn Source)
>>>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>>>>> Source)
>>>>> at java.lang.Thread.run(Unknown Source)
>>>>> Caused by: SQL Exception: VALUES clause must contain at least one
>>>>> element. Empty elements are not allowed.
>>>>> at
>>>>> org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>>>>> Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>>>>> Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>>>>> Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>>>>> Source)
>>>>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown
>>>>> Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own
>>>>> Source)
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>>>>
>>>>> ... 23 more
>>>>> [ERROR] Rollback in DBStore: org.eclipse.net4j.db.DBException: SQL
>>>>> Exception: VALUES clause must contain at least one element. Empty
>>>>> elements are not allowed.
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:276)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.doInsertAttributes(StatementJDBCDelegate.java:93)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.AbstractJDBCDele gate.insertAttributes(AbstractJDBCDelegate.java:147)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeAtt ributes(ClassMapping.java:392)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.ClassMapping.writeRev ision(ClassMapping.java:343)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.HorizontalClassMappin g.writeRevision(HorizontalClassMapping.java:47)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revision(DBStoreAccessor.java:518)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write Revisions(DBStoreAccessor.java:500)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.StoreAccessor.write(Stor eAccessor.java:151)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor.write (DBStoreAccessor.java:367)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.TransactionCommitContext Impl.write(TransactionCommitContextImpl.java:281)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicatingCommit(CommitTransactionIndication.ja va:328)
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:204 )
>>>>>
>>>>> at
>>>>> org.eclipse.emf.cdo.internal.server.protocol.CommitTransacti onIndication.indicating(CommitTransactionIndication.java:146 )
>>>>>
>>>>> at
>>>>> org.eclipse.net4j.signal.IndicationWithMonitoring.indicating (IndicationWithMonitoring.java:146)
>>>>>
>>>>> at
>>>>> org.eclipse.net4j.signal.IndicationWithResponse.doExtendedIn put(IndicationWithResponse.java:90)
>>>>>
>>>>> at org.eclipse.net4j.signal.Signal.doInput(Signal.java:317)
>>>>> at
>>>>> org.eclipse.net4j.signal.IndicationWithResponse.execute(Indi cationWithResponse.java:63)
>>>>>
>>>>> at
>>>>> org.eclipse.net4j.signal.IndicationWithMonitoring.execute(In dicationWithMonitoring.java:71)
>>>>>
>>>>> at org.eclipse.net4j.signal.Signal.runSync(Signal.java:237)
>>>>> at org.eclipse.net4j.signal.Signal.run(Signal.java:145)
>>>>> at
>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unkno wn Source)
>>>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>>>>> Source)
>>>>> at java.lang.Thread.run(Unknown Source)
>>>>> Caused by: SQL Exception: VALUES clause must contain at least one
>>>>> element. Empty elements are not allowed.
>>>>> at
>>>>> org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unkno wn Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQL Exception(Unknown
>>>>> Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleExc eption(Unknown
>>>>> Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.EmbedConnection.handleException(U nknown
>>>>> Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.ConnectionChild.handleException(U nknown
>>>>> Source)
>>>>> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown
>>>>> Source)
>>>>> at
>>>>> org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unkn own
>>>>> Source)
>>>>> at
>>>>> org.eclipse.emf.cdo.server.internal.db.jdbc.StatementJDBCDel egate.sqlUpdate(StatementJDBCDelegate.java:272)
>>>>>
>>>>> ... 23 more
>>>>>
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