Home » Modeling » EMF "Technology" (Ecore Tools, EMFatic, etc) » OCL Query Plugins Required
| | | |
| Re: OCL Query Plugins Required [message #53915 is a reply to message #53613] |
Thu, 28 September 2006 13:04   |
Eclipse User |
|
|
|
Originally posted by: cdamus.ca.ibm.com
Hi, Kamesh,
The references to IOclQueryHelper and QueryHelper types in the tutorial are
in error. These were an older incarnation of the query API; they never did
exist in the org.eclipse.emf.query* APIs.
Would you mind raising a bug for this?
The discussion of the SELECT and OclCOnstraintCondition APIs in the
"Advanced Querying" section of the tutorial is more accurate.
HTH,
Christian
Kamesh Sampath wrote:
> I am trying to write an OCL query using the EMF Query tutorial , I am not
> able find the class IOclQueryHelper and QueryHelper .
>
> I have added the following plugins to my plugin dependencies ,
>
> org.eclipse.emf.query
> org.eclipse.emf.query.ocl
> org.eclipse.emf.ocl
>
> Are there any more plugins need to be added ?
>
> Kamesh
|
|
|
| Re: OCL Query Plugins Required [message #53935 is a reply to message #53613] |
Thu, 28 September 2006 13:05 |
| Eclipse User |
|
|
|
Originally posted by: cdamus.ca.ibm.com
Hi, Kamesh,
I forgot to mention that these are the only plug-ins required for querying
with OCL using the EMF Query API.
Cheers,
Christian
Kamesh Sampath wrote:
> I am trying to write an OCL query using the EMF Query tutorial , I am not
> able find the class IOclQueryHelper and QueryHelper .
>
> I have added the following plugins to my plugin dependencies ,
>
> org.eclipse.emf.query
> org.eclipse.emf.query.ocl
> org.eclipse.emf.ocl
>
> Are there any more plugins need to be added ?
>
> Kamesh
|
|
|
| Re: OCL Query Plugins Required [message #53947 is a reply to message #53874] |
Thu, 28 September 2006 13:16 |
| Eclipse User |
|
|
|
Originally posted by: cdamus.ca.ibm.com
Hi, Kamesh,
The IOCLHelper and Query interfaces in the EMFT OCL project are only
coincidentally similar in name to those that you were referred to by the
EMFT Query tutorial (and which do not exist). These are in no way a
replacement for that other API.
Regarding the NoClassDefFoundError on the RuleAction: are you running your
example below in an Eclipse instance? If not, the you will have to extract
the lpgjavaruntime.jar file from the emft-ocl-SDK-1.0.1.jar file (or
whatever version you are using) and put it on your classpath. This is the
LALR Parser Generator library that EMFT OCL uses for parsing OCL
expressions. We have a bug open to provide stand-alone builds of EMFT OCL
as EMF does for EMF, XSD, and SDO.
Once you have that straightened out, there may also be a few problems in
your snippet, below (comments in-line).
HTH,
Christian
Kamesh Sampath wrote:
> Chris,
>
> My IOCLHelper is resolved, thanks for help. as you had said i just
> updated my plugins to 1.0.1 .
>
> By the way am just learning to use EMF OCL , so if there is any syntical
> problem please do execuse me . I just want to set the environment for
> running the OCL and slowly start learing the other OCL stuff.
>
> I am running the following code snipper from my *.tests plugin's
> XYZExample.java
>
> Code Snippet of what am doing ?
>
> // EMFT query
> Map extents = new HashMap();
> Set fbs = new HashSet();
> extents.put(
>
StrutsconfigPackage.eINSTANCE.getFormBeanType(),
> fbs);
This is good, but I don't see any FormBeanTypes being added to the 'fbs'
set, so your extent is empty.
> String expr = "FormBeans.allInstances()->collect(a :
> FormBeanType | a.name)-> asSet()";
The 'allInstances()' operation must be applied to the name of the
EClassifier, which from the StrutsconfigPackage above looks like it would
be 'FormBeanType', not 'FormBeans'.
>
> Query query = QueryFactory.eINSTANCE.createQuery(expr,
>
> StrutsconfigPackage.eINSTANCE.getFormBeanType());
>
> query.setExtentMap(extents);
>
> Collection result = query.evaluate(root.getFormBeans()
> .getFormBeans());
In this case, because the expression invokes a static operation, I think you
may actually not need a context element (null would do). Otherwise, the
expected input to the Query.evaluate() method is just a form-bean object,
not a collection. It looks like this collection should be your "extent" in
the extent-map. :-)
>
> but when i create a and run the OCL expression am getting the following
> error ,
>
> Exception in thread "main" java.lang.NoClassDefFoundError:
> lpg/lpgjavaruntime/RuleAction
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(Unknown Source)
> at java.security.SecureClassLoader.defineClass(Unknown Source)
> at java.net.URLClassLoader.defineClass(Unknown Source)
> at java.net.URLClassLoader.access$100(Unknown Source)
> at java.net.URLClassLoader$1.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at java.lang.ClassLoader.loadClassInternal(Unknown Source)
> at
>
org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createP arser(ExpressionsUtil.java:680)
> at
>
org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createP arser(ExpressionsUtil.java:663)
> at
>
org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createQ uery(ExpressionsUtil.java:177)
> at
>
org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createQ uery(ExpressionsUtil.java:156)
> at
> org.eclipse.emf.ocl.query.impl.QueryUtil.makeOCLQuery(QueryU til.java:66)
> at
>
org.eclipse.emf.ocl.query.impl.QueryFactoryImpl.createQuery( QueryFactoryImpl.java:127)
> at
>
in.org.shakti.strutsconfig.tests.StrutsconfigExample.main(St rutsconfigExample.java:169)
>
> Your help in this regard is highly appericated ..
>
> Thank you.
>
> Kamesh
>
>
> Chris Lenz wrote:
>> import org.eclipse.emf.ocl.helper.HelperUtil;
>> import org.eclipse.emf.ocl.helper.IOCLHelper;
>>
>> they are in org.eclipse.emf.ocl maybe you have an older version.
>> Whar class is not found??
>> Chris
>>
>> Kamesh Sampath schrieb:
>>
>>> Can anyone help me please . I am struck .
>>>
>>> I am also getting a NoClassDefFound Error when i I run my OCL Expression
>>> .
>>>
>>> I guess it will be better to add few lines to EMF document or tutorials
>>> on the plugins required us before executing the examples .
>>>
>>> Kamesh
>>>
>>> Kamesh Sampath wrote:
>>>
>>>> I am trying to write an OCL query using the EMF Query tutorial , I am
>>>> not able find the class IOclQueryHelper and QueryHelper .
>>>> I have added the following plugins to my plugin dependencies ,
>>>> org.eclipse.emf.query
>>>> org.eclipse.emf.query.ocl
>>>> org.eclipse.emf.ocl
>>>>
>>>> Are there any more plugins need to be added ?
>>>>
>>>> Kamesh
>>>>
>>>>
>>>
>
>
|
|
| | | | |
| Re: OCL Query Plugins Required [message #592469 is a reply to message #53613] |
Thu, 28 September 2006 13:04 |
| Eclipse User |
|
|
|
Originally posted by: cdamus.ca.ibm.com
Hi, Kamesh,
The references to IOclQueryHelper and QueryHelper types in the tutorial are
in error. These were an older incarnation of the query API; they never did
exist in the org.eclipse.emf.query* APIs.
Would you mind raising a bug for this?
The discussion of the SELECT and OclCOnstraintCondition APIs in the
"Advanced Querying" section of the tutorial is more accurate.
HTH,
Christian
Kamesh Sampath wrote:
> I am trying to write an OCL query using the EMF Query tutorial , I am not
> able find the class IOclQueryHelper and QueryHelper .
>
> I have added the following plugins to my plugin dependencies ,
>
> org.eclipse.emf.query
> org.eclipse.emf.query.ocl
> org.eclipse.emf.ocl
>
> Are there any more plugins need to be added ?
>
> Kamesh
|
|
|
| Re: OCL Query Plugins Required [message #592482 is a reply to message #53613] |
Thu, 28 September 2006 13:05 |
| Eclipse User |
|
|
|
Originally posted by: cdamus.ca.ibm.com
Hi, Kamesh,
I forgot to mention that these are the only plug-ins required for querying
with OCL using the EMF Query API.
Cheers,
Christian
Kamesh Sampath wrote:
> I am trying to write an OCL query using the EMF Query tutorial , I am not
> able find the class IOclQueryHelper and QueryHelper .
>
> I have added the following plugins to my plugin dependencies ,
>
> org.eclipse.emf.query
> org.eclipse.emf.query.ocl
> org.eclipse.emf.ocl
>
> Are there any more plugins need to be added ?
>
> Kamesh
|
|
|
| Re: OCL Query Plugins Required [message #592493 is a reply to message #53874] |
Thu, 28 September 2006 13:16 |
| Eclipse User |
|
|
|
Originally posted by: cdamus.ca.ibm.com
Hi, Kamesh,
The IOCLHelper and Query interfaces in the EMFT OCL project are only
coincidentally similar in name to those that you were referred to by the
EMFT Query tutorial (and which do not exist). These are in no way a
replacement for that other API.
Regarding the NoClassDefFoundError on the RuleAction: are you running your
example below in an Eclipse instance? If not, the you will have to extract
the lpgjavaruntime.jar file from the emft-ocl-SDK-1.0.1.jar file (or
whatever version you are using) and put it on your classpath. This is the
LALR Parser Generator library that EMFT OCL uses for parsing OCL
expressions. We have a bug open to provide stand-alone builds of EMFT OCL
as EMF does for EMF, XSD, and SDO.
Once you have that straightened out, there may also be a few problems in
your snippet, below (comments in-line).
HTH,
Christian
Kamesh Sampath wrote:
> Chris,
>
> My IOCLHelper is resolved, thanks for help. as you had said i just
> updated my plugins to 1.0.1 .
>
> By the way am just learning to use EMF OCL , so if there is any syntical
> problem please do execuse me . I just want to set the environment for
> running the OCL and slowly start learing the other OCL stuff.
>
> I am running the following code snipper from my *.tests plugin's
> XYZExample.java
>
> Code Snippet of what am doing ?
>
> // EMFT query
> Map extents = new HashMap();
> Set fbs = new HashSet();
> extents.put(
>
StrutsconfigPackage.eINSTANCE.getFormBeanType(),
> fbs);
This is good, but I don't see any FormBeanTypes being added to the 'fbs'
set, so your extent is empty.
> String expr = "FormBeans.allInstances()->collect(a :
> FormBeanType | a.name)-> asSet()";
The 'allInstances()' operation must be applied to the name of the
EClassifier, which from the StrutsconfigPackage above looks like it would
be 'FormBeanType', not 'FormBeans'.
>
> Query query = QueryFactory.eINSTANCE.createQuery(expr,
>
> StrutsconfigPackage.eINSTANCE.getFormBeanType());
>
> query.setExtentMap(extents);
>
> Collection result = query.evaluate(root.getFormBeans()
> .getFormBeans());
In this case, because the expression invokes a static operation, I think you
may actually not need a context element (null would do). Otherwise, the
expected input to the Query.evaluate() method is just a form-bean object,
not a collection. It looks like this collection should be your "extent" in
the extent-map. :-)
>
> but when i create a and run the OCL expression am getting the following
> error ,
>
> Exception in thread "main" java.lang.NoClassDefFoundError:
> lpg/lpgjavaruntime/RuleAction
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(Unknown Source)
> at java.security.SecureClassLoader.defineClass(Unknown Source)
> at java.net.URLClassLoader.defineClass(Unknown Source)
> at java.net.URLClassLoader.access$100(Unknown Source)
> at java.net.URLClassLoader$1.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at java.lang.ClassLoader.loadClassInternal(Unknown Source)
> at
>
org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createP arser(ExpressionsUtil.java:680)
> at
>
org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createP arser(ExpressionsUtil.java:663)
> at
>
org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createQ uery(ExpressionsUtil.java:177)
> at
>
org.eclipse.emf.ocl.expressions.util.ExpressionsUtil.createQ uery(ExpressionsUtil.java:156)
> at
> org.eclipse.emf.ocl.query.impl.QueryUtil.makeOCLQuery(QueryU til.java:66)
> at
>
org.eclipse.emf.ocl.query.impl.QueryFactoryImpl.createQuery( QueryFactoryImpl.java:127)
> at
>
in.org.shakti.strutsconfig.tests.StrutsconfigExample.main(St rutsconfigExample.java:169)
>
> Your help in this regard is highly appericated ..
>
> Thank you.
>
> Kamesh
>
>
> Chris Lenz wrote:
>> import org.eclipse.emf.ocl.helper.HelperUtil;
>> import org.eclipse.emf.ocl.helper.IOCLHelper;
>>
>> they are in org.eclipse.emf.ocl maybe you have an older version.
>> Whar class is not found??
>> Chris
>>
>> Kamesh Sampath schrieb:
>>
>>> Can anyone help me please . I am struck .
>>>
>>> I am also getting a NoClassDefFound Error when i I run my OCL Expression
>>> .
>>>
>>> I guess it will be better to add few lines to EMF document or tutorials
>>> on the plugins required us before executing the examples .
>>>
>>> Kamesh
>>>
>>> Kamesh Sampath wrote:
>>>
>>>> I am trying to write an OCL query using the EMF Query tutorial , I am
>>>> not able find the class IOclQueryHelper and QueryHelper .
>>>> I have added the following plugins to my plugin dependencies ,
>>>> org.eclipse.emf.query
>>>> org.eclipse.emf.query.ocl
>>>> org.eclipse.emf.ocl
>>>>
>>>> Are there any more plugins need to be added ?
>>>>
>>>> Kamesh
>>>>
>>>>
>>>
>
>
|
|
| |
Goto Forum:
Current Time: Mon Sep 23 06:37:41 GMT 2024
Powered by FUDForum. Page generated in 0.03940 seconds |
] 
Search
Help
Register
Login
Home
