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czakian
 Post subject: upgrade from 3.5.6 to 3.6.4 creates class cast exception
PostPosted: Wed Jun 08, 2011 11:37 am 
Newbie

Joined: Wed Jun 08, 2011 11:12 am
Posts: 4
Hello, I am attempting to upgrade hibernate from 3.5.6 to 3.6.4. When I switch to any version higher than 3.5.6 I receive numerous class cast errors from java.lang.String to java.util.Locale. does anyone know if there was a change between the two versions that would cause this?

here are the specifics of where I get the error and the back trace:

backtrace:

Code:
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Locale
   at org.hibernate.type.descriptor.java.LocaleTypeDescriptor.unwrap(LocaleTypeDescriptor.java:1)
   at org.hibernate.type.descriptor.sql.VarcharTypeDescriptor$1.doBind(VarcharTypeDescriptor.java:52)
   at org.hibernate.type.descriptor.sql.BasicBinder.bind(BasicBinder.java:91)
   at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(AbstractStandardBasicType.java:282)
   at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(AbstractStandardBasicType.java:277)
   at org.hibernate.loader.Loader.bindPositionalParameters(Loader.java:1873)
   at org.hibernate.loader.Loader.bindParameterValues(Loader.java:1844)
   at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1716)
   at org.hibernate.loader.Loader.doQuery(Loader.java:801)
   at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
   at org.hibernate.loader.Loader.doList(Loader.java:2533)
   at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
   at org.hibernate.loader.Loader.list(Loader.java:2271)
   at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:119)
   at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1716)
   at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
   at org.openmrs.api.db.hibernate.HibernateConceptDAO.getConcepts(HibernateConceptDAO.java:557)
   at org.openmrs.api.impl.ConceptServiceImpl.getConcepts(ConceptServiceImpl.java:574)
   at org.openmrs.api.impl.ConceptServiceImpl.getConceptsByName(ConceptServiceImpl.java:409)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
   at $Proxy35.getConceptsByName(Unknown Source)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
   at org.openmrs.aop.LoggingAdvice.invoke(LoggingAdvice.java:122)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
   at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:50)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
   at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:50)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
   at $Proxy36.getConceptsByName(Unknown Source)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
   at $Proxy36.getConceptsByName(Unknown Source)
   at org.openmrs.validator.ConceptValidator.validate(ConceptValidator.java:158)
   at org.openmrs.validator.ConceptValidatorTest.validate_shouldPassIfTheConceptIsBeingUpdatedWithNoNameChange(ConceptValidatorTest.java:56)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
   at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
   at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
   at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
   at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
   at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
   at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
   at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
   at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
   at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
   at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
   at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
   at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
   at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
   at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
   at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
   at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
   at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)



The call to criteria.list() is from the following method in the DAO:

Code:
public List<Concept> getConcepts(String name, Locale loc, boolean searchOnPhrase, List<ConceptClass> classes,
           List<ConceptDatatype> datatypes) throws DAOException {
      
      Criteria criteria = sessionFactory.getCurrentSession().createCriteria(Concept.class);
      
      criteria.add(Restrictions.eq("retired", false));
      
      if (name != null) {
         if (loc == null)
            throw new DAOException("Locale must be not null");
         criteria.createAlias("names", "names");
         MatchMode matchmode = MatchMode.EXACT;
         if (searchOnPhrase)
            matchmode = MatchMode.ANYWHERE;
         
         criteria.add(Restrictions.ilike("names.name", name, matchmode));
         
         String language = loc.getLanguage();
         if (language.length() > 2) {
            // if searching in specific locale like en_US
            criteria.add(Restrictions.or(Restrictions.eq("names.locale", loc.getLanguage()), Restrictions.eq(
                "names.locale", loc.getLanguage().substring(0, 2))));
         } else {
            // if searching in general locale like just "en"
            criteria.add(Restrictions.like("names.locale", loc.getLanguage(), MatchMode.START));
         }
      }
      
      if (classes.size() > 0)
         criteria.add(Restrictions.in("conceptClass", classes));
      
      if (datatypes.size() > 0)
         criteria.add(Restrictions.in("datatype", datatypes));
      return List = criteria.list();
   }


Any ideas as to how I might go about fixing this?
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vk_phoenixfr
 Post subject: Re: upgrade from 3.5.6 to 3.6.4 creates class cast exception
PostPosted: Wed Jun 15, 2011 12:23 pm 
Newbie

Joined: Tue Sep 25, 2007 6:30 am
Posts: 10
Same here, any help?
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czakian
 Post subject: Re: upgrade from 3.5.6 to 3.6.4 creates class cast exception
PostPosted: Wed Jun 15, 2011 12:27 pm 
Newbie

Joined: Wed Jun 08, 2011 11:12 am
Posts: 4
I have narrowed it down to a problem with the restrictions created with this part of the code:

Code:
criteria.add(Restrictions.like("names.locale", loc.getLanguage(), MatchMode.START));

So what is happening (I think) is that names.locale has type Local, but loc.getLanguage() is a String, so when it tries to compare, things blow up?
I don't know what changed though, because this same called worked fine in 3.5.x.
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vk_phoenixfr
 Post subject: Re: upgrade from 3.5.6 to 3.6.4 creates class cast exception
PostPosted: Wed Jun 15, 2011 1:07 pm 
Newbie

Joined: Tue Sep 25, 2007 6:30 am
Posts: 10
I think you're on the good way.
I fixed my problem.

I had a hql query with "... and locale=?" followed by a :
Code:
Object[] params = { value, locale.toString() };
List<MyEntity> entities = getHibernateTemplate().find(query, params);


I removed the toString(), passing the local "as is" as a param, and it works fine. Looks better this way, i think, so i understand the change. But a documentation in the migration guides could have been useful :)

I think you should try passing "loc" and not "loc.getLanguage", and see how it helps.
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czakian
 Post subject: Re: upgrade from 3.5.6 to 3.6.4 creates class cast exception
PostPosted: Wed Jun 15, 2011 1:39 pm 
Newbie

Joined: Wed Jun 08, 2011 11:12 am
Posts: 4
I would have just passed the loc, but unless I am mistaken, Restrictions with the matchmode requires a String as the second argument. I could be wrong though.
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nelson9
 Post subject: Re: upgrade from 3.5.6 to 3.6.4 creates class cast exception
PostPosted: Thu Jun 16, 2011 2:09 am 
Newbie

Joined: Thu Jun 16, 2011 1:58 am
Posts: 1
Location: california
hi czakian,Your information is good.Thanks for sharing.

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vk_phoenixfr
 Post subject: Re: upgrade from 3.5.6 to 3.6.4 creates class cast exception
PostPosted: Thu Jun 16, 2011 3:12 am 
Newbie

Joined: Tue Sep 25, 2007 6:30 am
Posts: 10
Restriction.eq does take an object as the value to restrict on. I don't think it has to be a String.
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