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From "Helen Xu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OPENJPA-2233) Failed to invoke pcGetIDOwningClass method on embeddable entity with ID annotation
Date Tue, 17 Jul 2012 15:40:35 GMT
Helen Xu created OPENJPA-2233:
---------------------------------

             Summary: Failed to invoke pcGetIDOwningClass method on embeddable entity with
ID annotation
                 Key: OPENJPA-2233
                 URL: https://issues.apache.org/jira/browse/OPENJPA-2233
             Project: OpenJPA
          Issue Type: Bug
          Components: Enhance
    Affects Versions: 2.2.0, 2.1.0, 2.0.1, 2.3.0
            Reporter: Helen Xu
            Assignee: Helen Xu


It failed to invoke pcGetIDOwningClass method on an embeddable entity which has the ID annotation.
here is the exception:

java.lang.NoSuchMethodError: com/xxx/xxx/entity/MyClass.pcGetIDOwningClass()Ljava/lang/Class;
at com.xxx.xxx.entity.MyClass.pcNewObjectIdInstance(MyClass.java)
at org.apache.openjpa.enhance.PCRegistry.newObjectId(PCRegistry.java:137)
at org.apache.openjpa.meta.MetaDataRepository.processRegisteredClass(MetaDataRepository.java:1661)
at org.apache.openjpa.meta.MetaDataRepository.processRegisteredClasses(MetaDataRepository.java:1615)
at org.apache.openjpa.meta.ClassMetaData.getPCSubclasses(ClassMetaData.java:365)
at org.apache.openjpa.jdbc.meta.MappingRepository.findBaseClassMapping(MappingRepository.java:1510)
at org.apache.openjpa.jdbc.meta.MappingRepository.prepareMapping(MappingRepository.java:403)
at org.apache.openjpa.meta.MetaDataRepository.preMapping(MetaDataRepository.java:736)
at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:625)
at org.apache.openjpa.meta.MetaDataRepository.getMetaDataInternal(MetaDataRepository.java:385)
at org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:358)
at org.apache.openjpa.meta.MetaDataRepository.resolveAll(MetaDataRepository.java:1923)
at org.apache.openjpa.meta.MetaDataRepository.getQueryMetaDataInternal(MetaDataRepository.java:1901)
at org.apache.openjpa.meta.MetaDataRepository.getQueryMetaData(MetaDataRepository.java:1888)
at org.apache.openjpa.persistence.EntityManagerImpl.createNamedQuery(EntityManagerImpl.java:1013)

This is because it uses different condition to add and invoke pcNewObjectIdInstance method
in PCEnhancer.

here is the section it adds pcNewObjectIdInstance in PCEnhancer.addPCMethods

            if (_meta.hasAbstractPKField() == true) { 
                addGetIDOwningClass();
            }

here is the section it invokes pcNewObjectIdInstance in PCEnhancer.addNewObjectIdInstanceMethod

          if(_meta.isEmbeddedOnly() || _meta.hasAbstractPKField() == true) {
                code.aload().setThis();
                code.invokevirtual().setMethod(PRE + "GetIDOwningClass",
                    Class.class, null);
            } else {
                code.classconstant().setClass(getType(_meta));
            }



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