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When trying to drop a collection with a native query we ran into this error : java.lang.ClassCastException: org.eclipse.persistence.nosql.adapters.mongo.MongoPlatform cannot be cast to org.eclipse.persistence.platform.database.DatabasePlatform The piece of code is the following : public void cleanAll() throws Exception { Query query = _context.getEntityManager().createNativeQuery("db.INVOICE.drop()"); query.getSingleResult(); }
Please include the exception stack trace.
Try executeUpdate() instead of getSingleResult() (no result from a drop)
This code : try { beginEntityManager(); beginTransaction(); Query q = getEntityManager().createNativeQuery("db.invoice.drop()"); q.executeUpdate(); commitTransaction(); endEntityManager(); } catch (Exception e) { log.error("Error while dropping", e); } produce the following stacktrace and logs : INFO Version - HV000001: Hibernate Validator 4.3.1.Final [EL Info]: 2013-03-27 17:12:52.199--ServerSession(1895272766)--EclipseLink, version: Eclipse Persistence Services - 2.4.1.v20121003-ad44345 [EL Info]: connection: 2013-03-27 17:12:52.44--ServerSession(1895272766)--file:/E:/jmc/Projets/clouderial/workspace/services/services-ejb/target/classes/_clouderial_pu login successful [EL Warning]: 2013-03-27 17:12:52.517--UnitOfWork(781582357)--Exception [EclipseLink-7108] (Eclipse Persistence Services - 2.4.1.v20121003-ad44345): org.eclipse.persistence.exceptions.ValidationException Exception Description: This operation is not supported for non-relational platforms. ERROR BaseServicesTestCase - Error while dropping Local Exception Stack: Exception [EclipseLink-7108] (Eclipse Persistence Services - 2.4.1.v20121003-ad44345): org.eclipse.persistence.exceptions.ValidationException Exception Description: This operation is not supported for non-relational platforms. at org.eclipse.persistence.exceptions.ValidationException.notSupportedForDatasource(ValidationException.java:567) at org.eclipse.persistence.sessions.DatasourceLogin.getPlatform(DatasourceLogin.java:202) at org.eclipse.persistence.internal.sessions.AbstractSession.getPlatform(AbstractSession.java:2528) at org.eclipse.persistence.internal.databaseaccess.DatabaseCall.usesBinding(DatabaseCall.java:1153) at org.eclipse.persistence.internal.databaseaccess.DatabaseCall.translate(DatabaseCall.java:976) at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:206) at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:193) at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeNoSelectCall(DatasourceCallQueryMechanism.java:236) at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeNoSelect(DatasourceCallQueryMechanism.java:216) at org.eclipse.persistence.queries.DataModifyQuery.executeDatabaseQuery(DataModifyQuery.java:85) at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:852) at org.eclipse.persistence.queries.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:751) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2875) at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1602) at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1584) at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1549) at org.eclipse.persistence.internal.jpa.QueryImpl.executeUpdate(QueryImpl.java:286) at clouderial.saas.services.test.BaseServicesTestCase.setUp(BaseServicesTestCase.java:88) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) 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) I hope this help.
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This one still happens on 2.6.1-RC1. As long as this isn't fixed, eclipselink is useless for mongodb.
The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink
