We're updating the issue view to help you get more done. 

ClassCastException with parameter as CASE results

Description

Hql query with CASE .. WHEN and parameter in THEN clause throws a classCastException.
Example :

1 UPDATE MyObject SET myProperty = CASE WHEN myFilterProperty like 'L%' THEN :new_value END

Exception
java.lang.ClassCastException: org.hibernate.hql.ast.tree.ParameterNode cannot be cast to org.hibernate.hql.ast.tree.SelectExpression
at org.hibernate.hql.ast.tree.CaseNode.getFirstThenNode(CaseNode.java:44)
at org.hibernate.hql.ast.tree.CaseNode.getDataType(CaseNode.java:40)
at org.hibernate.hql.ast.tree.BinaryLogicOperatorNode.extractDataType(BinaryLogicOperatorNode.java:210)
at org.hibernate.hql.ast.tree.BinaryLogicOperatorNode.initialize(BinaryLogicOperatorNode.java:58)
at org.hibernate.hql.ast.HqlSqlWalker.prepareLogicOperator(HqlSqlWalker.java:1133)
at org.hibernate.hql.ast.HqlSqlWalker.evaluateAssignment(HqlSqlWalker.java:1043)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.assignment(HqlSqlBaseWalker.java:1086)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.setClause(HqlSqlBaseWalker.java:766)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.updateStatement(HqlSqlBaseWalker.java:361)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:239)
at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:254)
at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:185)
at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136)
at com.bnpparibas.eqd.DMLCaseTest.runQuery(DMLCaseTest.java:67)
at com.bnpparibas.eqd.DMLCaseTest.doesntWork(DMLCaseTest.java:35)
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.internal.runners.TestMethod.invoke(TestMethod.java:59)
at org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:98)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:79)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:87)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42)
at org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88)
at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)
at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)
at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
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)

This issue have been posted in user forum.

It works with Hibernate 3.1.3.

A test case (designed for Hibernate 3.3.2.ga) which illustrate this issue is attached.

Environment

Hibernate 3.3.2.ga

Status

Assignee

Steve Ebersole

Reporter

Jean-Baptiste Mille

Components

Fix versions

Affects versions

3.2.0 cr1
3.2.0.cr2
3.2.0.cr3
3.2.0.cr4
3.2.0.cr5
3.2.0.ga
3.2.1
3.2.2
3.2.3
3.2.4
3.2.4.sp1
3.2.5
3.2.6
3.2.7
3.3.0.CR1
3.3.0.CR2
3.3.0.GA
3.3.0.SP1
3.3.1
3.3.2

Priority

Minor