I believe HHH-9615 is not done. The test case there converts String to Integer, to represent it as Lob, but these are both basic regular types. If instead of an a String you use something else (some custom Class), it doesn't seem to work.
For example, here I use a class called Imagem, and convert it to a String:
{code:java}
@Converter
public class ImagemToString_Converter
implements AttributeConverter<Imagem, String> {
public String convertToDatabaseColumn(@Nullable Imagem attribute) {
if (attribute== null) return null;
return attribute.toString();
}
public Imagem convertToEntityAttribute(@Nullable String dbData) {
return Imagem.getInstance(dbData);
}
}
{code}
The above code works OK as long as the field is not a @Lob (which means the converter itself is correct). But as soon as I add @Lob to the field it stops working. For example:
{code:java}
protected Imagem fotografia;
{code}
Then, when I try to save, it should see a String (the converter gets called), but it still sees an Imagem, and then I get this:
{code:java}
java.lang.ClassCastException:
Imagem.Imagem cannot be cast to org.hibernate.engine.jdbc.CharacterStream
at org.hibernate.type.descriptor.sql.ClobTypeDescriptor$4$1.doBind(124)
at org.hibernate.type.descriptor.sql.BasicBinder.bind(74)
at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(277)
at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(272)
at org.hibernate.type.AbstractSingleColumnStandardBasicType.nullSafeSet(39)
at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(2646)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(2931)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(3434)
at org.hibernate.action.internal.EntityInsertAction.execute(89)
at org.hibernate.engine.spi.ActionQueue.executeActions(560)
at org.hibernate.engine.spi.ActionQueue.executeActions(434)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(337)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(39)
at org.hibernate.internal.SessionImpl.flush(1396)
at org.hibernate.internal.SessionImpl.managedFlush(472)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(3132)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(2369)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(467)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(147)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(38)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(221)
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(68)
at Http.Sessao.SessaoETransacaoHibernate.comitaATransaçãoCasoExistaTransaçãoAtiva(SessaoETransacaoHibernate.java:28)
at Http.Sessao.Filtro$ProcessadorDeRequest.processaRequest(Filtro.java:267)
at Http.Sessao.Filtro$ProcessadorDeRequest.access$100(Filtro.java:91)
at Http.Sessao.Filtro.doFilter(Filtro.java:594)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(206)
at org.apache.catalina.core.StandardWrapperValve.invoke(219)
at org.apache.catalina.core.StandardContextValve.invoke(106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(502)
at org.apache.catalina.core.StandardHostValve.invoke(142)
at org.apache.catalina.valves.ErrorReportValve.invoke(79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(617)
at org.apache.catalina.core.StandardEngineValve.invoke(88)
at org.apache.catalina.connector.CoyoteAdapter.service(518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(668)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(2463)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(2452)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(61)
at java.lang.Thread.run(Thread.java:745)
{code}
If I save it to the database without @Lob, and then add the @Lob and try to open it, I get this:
{code:java}
org.hibernate.PropertyAccessException:
Could not set field value [com.mysql.jdbc.Clob@4b881040] value by reflection : [class ModuloADM.Usuario.Usuario.fotografia] setter of ModuloADM.Usuario.Usuario.fotografia
at org.hibernate.property.access.spi.SetterFieldImpl.set(58)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.setPropertyValues(610)
at org.hibernate.tuple.entity.PojoEntityTuplizer.setPropertyValues(205)
at org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(4618)
at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(169)
at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(125)
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.performTwoPhaseLoad(238)
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishUp(209)
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(133)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(122)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(86)
at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(167)
at org.hibernate.persister.entity.AbstractEntityPersister.load(4004)
at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(508)
at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(478)
at org.hibernate.event.internal.DefaultLoadEventListener.load(219)
at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(278)
at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(121)
at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(89)
at org.hibernate.internal.SessionImpl.fireLoad(1212)
at org.hibernate.internal.SessionImpl.access$1900(204)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.doLoad(2752)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(2726)
at org.hibernate.internal.SessionImpl.get(1048)
at sun.reflect.NativeMethodAccessorImpl.invoke0(sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(338)
at com.sun.proxy.$Proxy64.get(com.sun.proxy.$Proxy64.get(Unknown Source)
at Objetos.Registro.Registro_Dao.busca(Registro_Dao.java:202)
...
Caused by:
java.lang.IllegalArgumentException:
Can not set Imagem.Imagem field ModuloADM.Usuario.Usuario.fotografia to com.mysql.jdbc.Clob
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(167)
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(171)
at sun.reflect.UnsafeObjectFieldAccessorImpl.set(81)
at java.lang.reflect.Field.set(Field.java:758)
at org.hibernate.property.access.spi.SetterFieldImpl.set(38)
...
{code} |
|