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[Teneo] [EMF] I get a stackoverflow when i try to do a datastore.initialize [message #523793]

Mon, 29 March 2010 11:20

Chandan Rao

Messages: 3
Registered: March 2010

Junior Member

Hi i am new to EMF and Teneo, was trying out integrating teneo after learning the nuances of EMF

Did the following

I downloaded the library.mdl
[ http://help.eclipse.org/ganymede/topic/org.eclipse.emf.doc/t utorials/clibmod/library.mdl ]

and created an EMF project using that. Then in a class i have a main method with the following code

String dataStoreName = "BranchDataStore";
final Properties props = new Properties();
props.setProperty(Environment.DRIVER, "com.mysql.jdbc.Driver");
props.setProperty(Environment.USER, "root");
props.setProperty(Environment.URL, "jdbc:mysql://127.0.0.1:3306/library");
props.setProperty(Environment.PASS, "mysql");
props.setProperty(Environment.DIALECT,
org.hibernate.dialect.MySQLInnoDBDialect.class.getName());

HbDataStore dataStore = HbHelper.INSTANCE.createRegisterDataStore(dataStoreName);
dataStore.setProperties(props);
dataStore.setEPackages(new EPackage[] { LibraryPackage.eINSTANCE} );

try {
dataStore.initialize();
} catch (Exception e) {

}

I get the following stackoverflow excpetion at datastore.initialize()

Mar 29, 2010 4:45:51 PM org.eclipse.emf.teneo.hibernate.HbHelper createRegisterDataStore
INFO: Creating emf data store and registering it under name: LibraryDataStore
Mar 29, 2010 4:45:51 PM org.eclipse.emf.teneo.hibernate.HbHelper createRegisterDataStore
INFO: Returning created emf data store, initialize this newly created data store!
Mar 29, 2010 4:45:52 PM org.eclipse.emf.teneo.classloader.ClassLoaderResolver setClassLoaderStrategy
INFO: Class loader strategy set to: org.eclipse.emf.teneo.classloader.ContextClassLoaderStrategy
Mar 29, 2010 4:45:52 PM org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.0rc1
Mar 29, 2010 4:45:52 PM org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
Mar 29, 2010 4:45:52 PM org.hibernate.cfg.Environment <clinit>
INFO: using CGLIB reflection optimizer
Mar 29, 2010 4:45:52 PM org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
Exception in thread "main" java.lang.StackOverflowError
at org.eclipse.emf.teneo.annotations.pamodel.impl.PAnnotatedEMo delElementImpl.eIsSet(PAnnotatedEModelElementImpl.java:218)

Also i tried to check the mapping xml file generated

dataStore.getMappingXML() .. this returned null

Any idea what i am doing wrong?

Thank you

Chandan

[Updated on: Mon, 29 March 2010 11:26]

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Re: I get a stackoverflow when i try to do a datastore.initialize [message #523796 is a reply to message #523793]

Mon, 29 March 2010 11:49

Martin Taal

Messages: 5468
Registered: July 2009

Senior Member

Hi Chandan,
Can you post the last 10-20 lines of the stacktrace? And attach the mdl you are using?

gr. Martin

Chandan Rao wrote:
> Hi i am new to EMF and Teneo, was trying out integrating teneo after
> learning the nuances of EMF
>
> Did the following
>
> I downloaded the library.mdl and created an EMF project using that. Then
> in a class i have a main method with the following code
>
> String dataStoreName = "BranchDataStore";
> final Properties props = new Properties();
> props.setProperty(Environment.DRIVER, "com.mysql.jdbc.Driver");
> props.setProperty(Environment.USER, "root");
> props.setProperty(Environment.URL,
> "jdbc:mysql://127.0.0.1:3306/library");
> props.setProperty(Environment.PASS, "mysql");
> props.setProperty(Environment.DIALECT,
>
> org.hibernate.dialect.MySQLInnoDBDialect.class.getName());
>
> HbDataStore dataStore =
> HbHelper.INSTANCE.createRegisterDataStore(dataStoreName);
> dataStore.setProperties(props);
> dataStore.setEPackages(new EPackage[] {
> LibraryPackage.eINSTANCE} );
>
> try {
> dataStore.initialize();
> } catch (Exception e) {
>
> }
>
>
>
> I get the following stackoverflow excpetion at datastore.initialize()
>
> Mar 29, 2010 4:45:51 PM org.eclipse.emf.teneo.hibernate.HbHelper
> createRegisterDataStore
> INFO: Creating emf data store and registering it under name:
> LibraryDataStore
> Mar 29, 2010 4:45:51 PM org.eclipse.emf.teneo.hibernate.HbHelper
> createRegisterDataStore
> INFO: Returning created emf data store, initialize this newly created
> data store!
> Mar 29, 2010 4:45:52 PM
> org.eclipse.emf.teneo.classloader.ClassLoaderResolver
> setClassLoaderStrategy
> INFO: Class loader strategy set to:
> org.eclipse.emf.teneo.classloader.ContextClassLoaderStrategy
> Mar 29, 2010 4:45:52 PM org.hibernate.cfg.Environment <clinit>
> INFO: Hibernate 3.0rc1
> Mar 29, 2010 4:45:52 PM org.hibernate.cfg.Environment <clinit>
> INFO: hibernate.properties not found
> Mar 29, 2010 4:45:52 PM org.hibernate.cfg.Environment <clinit>
> INFO: using CGLIB reflection optimizer
> Mar 29, 2010 4:45:52 PM org.hibernate.cfg.Environment <clinit>
> INFO: using JDK 1.4 java.sql.Timestamp handling
> Exception in thread "main" java.lang.StackOverflowError
> at org.eclipse.emf.teneo.annotations.pamodel.impl.PAnnotatedEMo
> delElementImpl.eIsSet(PAnnotatedEModelElementImpl.java:218)
>
>
> Also i tried to check the mapping xml file generated
>
> dataStore.getMappingXML() .. this returned null
>
>
> Any idea what i am doing wrong?
>
> Thank you
>
> Chandan

--

With Regards, Martin Taal

Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org

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Re: I get a stackoverflow when i try to do a datastore.initialize [message #523800 is a reply to message #523796]

Mon, 29 March 2010 12:42

Chandan Rao

Messages: 3
Registered: March 2010

Junior Member

Hi Martin

Couldn't figure out how to attach stuff here

Anyways used a pastebin for the stacktrace, since it was huge

http://pastebin.com/uGRibmit

also my mdl is same as one in this link.

http://help.eclipse.org/ganymede/topic/org.eclipse.emf.doc/t utorials/clibmod/library.mdl

Haven't done any changes in this.

--
regards
chandan

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Re: I get a stackoverflow when i try to do a datastore.initialize [message #523806 is a reply to message #523800]

Mon, 29 March 2010 12:59

Martin Taal

Messages: 5468
Registered: July 2009

Senior Member

This is a multi-part message in MIME format.
--------------050708000507010200050206
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

Hi Chandan,
I tested this and it works with me. I used the attached QuickStart. I did the following steps:
- created an EMF Project from the mdl file
- generated model code
- set dependencies to teneo, hibernate, mysql and hsqldb plugins in the Manifest.mf
- added the attached quickstart in the src folder
- run the quickstart

I did not get the stackoverflow. Can you retry with the attached quickstart?

or if it still does not work zip up the library project and email it to me?

Btw, which Eclipse version are you using? I tested this with Eclipse 3.5.1/emf 2.5 and latest teneo.

gr. Martin

Chandan Rao wrote:
> Hi Martin
>
> Couldn't figure out how to attach stuff here
>
> Anyways used a pastebin for the stacktrace, since it was huge
>
> http://pastebin.com/uGRibmit
>
> also my mdl is same as one in this link.
> http://help.eclipse.org/ganymede/topic/org.eclipse.emf.doc/t utorials/clibmod/library.mdl
>
> Haven't done any changes in this.
>
> --
> regards
> chandan

--

With Regards, Martin Taal

Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org

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Re: I get a stackoverflow when i try to do a datastore.initialize [message #523852 is a reply to message #523806]

Mon, 29 March 2010 15:45

Chandan Rao

Messages: 3
Registered: March 2010

Junior Member

Hi Martin

Thanks a lot! The java class worked for me. Though curiously i seemed to have done nothing different in the original class. Not sure why that wasn't working.

Will need to get back that dev setup and see how that is different from the one at home.

Again, Thanks a lot Smile

regards
Chandan

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Re: I get a stackoverflow when i try to do a datastore.initialize [message #997989 is a reply to message #523852]

Wed, 09 January 2013 06:03

Appasamy Thirugnana

Messages: 27
Registered: September 2012

Junior Member

Hi Martin,

I am getting the same error. The model is the default sample 'library.ecore' available with teneo. In my local machine(Jetty/Windows) it is working and not working on the Tomcat/Linux.

It is failing exactly at below line

HbHelper.INSTANCE.generateMapping(getEPackages(), teneoProperties);

Trace:

Caused by: java.lang.StackOverflowError
	at org.eclipse.emf.teneo.annotations.pamodel.impl.PAnnotatedEModelElementImpl.eIsSet(PAnnotatedEModelElementImpl.java:218)
	at org.eclipse.emf.teneo.annotations.pamodel.impl.PAnnotatedEPackageImpl.eIsSet(PAnnotatedEPackageImpl.java:393)
	at org.eclipse.emf.teneo.hibernate.hbmodel.impl.HbAnnotatedEPackageImpl.eIsSet(HbAnnotatedEPackageImpl.java:276)
	at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eIsSet(BasicEObjectImpl.java:1237)
	at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eIsSet(BasicEObjectImpl.java:1252)
	at org.eclipse.emf.teneo.annotations.pamodel.impl.PAnnotatedEModelElementImpl.eIsSet(PAnnotatedEModelElementImpl.java:224)
	at org.eclipse.emf.teneo.annotations.pamodel.impl.PAnnotatedEPackageImpl.eIsSet(PAnnotatedEPackageImpl.java:393)
	at org.eclipse.emf.teneo.hibernate.hbmodel.impl.HbAnnotatedEPackageImpl.eIsSet(HbAnnotatedEPackageImpl.java:276)
	at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eIsSet(BasicEObjectImpl.java:1237)
	at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eIsSet(BasicEObjectImpl.java:1252)

Thanks,
Appasamy

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