Hi
I'm currently having a problem with Spring and Hibernate. If anyone has any suggestions, please let me know.
My problem is this. I am trying to wire a generic property editor into a controller. Whenever I post to that controller, the property editor gets called and attempts to load an object using a provided manager. When the manager calls its "get" method, I get this exception:
ERROR [http-8080-Processor24] BasicPropertyAccessor.get(167) | IllegalArgumentException in class: net.myOrg.baseClasses.BaseObject, getter method of property: id
ERROR [http-8080-Processor24] AbstractFlushingEventListener.performExecutions(30 1) | Could not synchronize database state with session
org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of net.myOrg.baseClasses.BaseObject.id
at org.hibernate.property.BasicPropertyAccessor$Basic Getter.get(BasicPropertyAccessor.java:171)
at org.hibernate.tuple.entity.AbstractEntityTuplizer. getIdentifier(AbstractEntityTuplizer.java:183)
at org.hibernate.persister.entity.AbstractEntityPersi ster.getIdentifier(AbstractEntityPersister.java:35 39)
at org.hibernate.persister.entity.AbstractEntityPersi ster.isTransient(AbstractEntityPersister.java:3255 )
at org.hibernate.engine.ForeignKeys.isTransient(Forei gnKeys.java:181)
at org.hibernate.engine.ForeignKeys.getEntityIdentifi erIfNotUnsaved(ForeignKeys.java:218)
at org.hibernate.type.EntityType.getIdentifier(Entity Type.java:397)
at org.hibernate.type.ManyToOneType.nullSafeSet(ManyT oOneType.java:78)
at org.hibernate.persister.collection.AbstractCollect ionPersister.writeElement(AbstractCollectionPersis ter.java:755)
at org.hibernate.persister.collection.AbstractCollect ionPersister.recreate(AbstractCollectionPersister. java:1143)
at org.hibernate.action.CollectionRecreateAction.exec ute(CollectionRecreateAction.java:26)
at org.hibernate.engine.ActionQueue.execute(ActionQue ue.java:248)
at org.hibernate.engine.ActionQueue.executeActions(Ac tionQueue.java:232)
at org.hibernate.engine.ActionQueue.executeActions(Ac tionQueue.java:143)
at org.hibernate.event.def.AbstractFlushingEventListe ner.performExecutions(AbstractFlushingEventListene r.java:298)
at org.hibernate.event.def.DefaultFlushEventListener. onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.j ava:1000)
at org.hibernate.impl.SessionImpl.managedFlush(Sessio nImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(J DBCTransaction.java:106)
at org.springframework.orm.hibernate3.HibernateTransa ctionManager.doCommit(HibernateTransactionManager. java:575)
at org.springframework.transaction.support.AbstractPl atformTransactionManager.processCommit(AbstractPla tformTransactionManager.java:662)
at org.springframework.transaction.support.AbstractPl atformTransactionManager.commit(AbstractPlatformTr ansactionManager.java:632)
at org.springframework.transaction.interceptor.Transa ctionAspectSupport.commitTransactionAfterReturning (TransactionAspectSupport.java:314)
at org.springframework.transaction.interceptor.Transa ctionInterceptor.invoke(TransactionInterceptor.jav a:117)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :161)
at org.springframework.aop.framework.JdkDynamicAopPro xy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy306.get(Unknown Source)
at net.myOrg.beans.PropertyEditor.setAsText(PropertyE ditor.java:38)
at org.springframework.beans.TypeConverterDelegate.do ConvertTextValue(TypeConverterDelegate.java:326)
at org.springframework.beans.TypeConverterDelegate.do ConvertValue(TypeConverterDelegate.java:310)
at org.springframework.beans.TypeConverterDelegate.co nvertIfNecessary(TypeConverterDelegate.java:192)
at org.springframework.beans.TypeConverterDelegate.co nvertIfNecessary(TypeConverterDelegate.java:138)
at org.springframework.beans.BeanWrapperImpl.setPrope rtyValue(BeanWrapperImpl.java:815)
at org.springframework.beans.BeanWrapperImpl.setPrope rtyValue(BeanWrapperImpl.java:645)
at org.springframework.beans.AbstractPropertyAccessor .setPropertyValues(AbstractPropertyAccessor.java:7 8)
at org.springframework.validation.DataBinder.applyPro pertyValues(DataBinder.java:532)
at org.springframework.validation.DataBinder.doBind(D ataBinder.java:434)
at org.springframework.web.bind.WebDataBinder.doBind( WebDataBinder.java:147)
at org.springframework.web.bind.ServletRequestDataBin der.bind(ServletRequestDataBinder.java:108)
at org.springframework.web.servlet.mvc.BaseCommandCon troller.bindAndValidate(BaseCommandController.java :369)
at org.springframework.web.servlet.mvc.AbstractFormCo ntroller.handleRequestInternal(AbstractFormControl ler.java:248)
at org.springframework.web.servlet.mvc.AbstractContro ller.handleRequest(AbstractController.java:153)
at org.springframework.web.servlet.mvc.SimpleControll erHandlerAdapter.handle(SimpleControllerHandlerAda pter.java:48)
at org.springframework.web.servlet.DispatcherServlet. doDispatch(DispatcherServlet.java:857)
at org.springframework.web.servlet.DispatcherServlet. doService(DispatcherServlet.java:792)
at org.springframework.web.servlet.FrameworkServlet.p rocessRequest(FrameworkServlet.java:461)
at org.springframework.web.servlet.FrameworkServlet.d oPost(FrameworkServlet.java:426)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:802)
Caused by: java.lang.IllegalArgumentException: java.lang.ClassCastException@169dd14
at sun.reflect.GeneratedMethodAccessor903.invoke(Unkn own Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.hibernate.property.BasicPropertyAccessor$Basic Getter.get(BasicPropertyAccessor.java:145)
... 119 more
Here is my code for the property editor:
Code:
Code:
public class PropertyEditor<T, PK extends Serializable> extends PropertyEditorSupport {
private Manager<T, PK> mgr;
private Class<PK> primaryKeyClass;
public void setMgr(Manager<T, PK> mgr) {
this.mgr = mgr;
}
public void setPrimaryKeyClass(Class<PK> primaryKeyClass) {
this.primaryKeyClass = primaryKeyClass;
}
public PropertyEditor() {}
public PropertyEditor(final Manager<T, PK> mgr, final Class<PK> primaryKeyClass) {
super();
this.mgr = mgr;
this.primaryKeyClass = primaryKeyClass;
}
public void setAsText(String primaryKey) {
if (StringUtils.isEmpty(primaryKey)) {
setValue(null);
}
else {
setValue(mgr.get((PK) ConvertUtils.convert(primaryKey, primaryKeyClass)));
}
}
I have it wired in my context like this:
Code:
Code:
<bean id="organizationPropertyEditor" class="net.myOrg.beans.PropertyEditor">
<property name="mgr" ref="organizationManager"/>
<property name="primaryKeyClass" value="java.lang.Long"/>
</bean>
I have the organization manager wired like this:
Code:
Code:
<bean id="organizationManager" class="net.myOrg.service.impl.DaoBasedManager">
<constructor-arg>
<bean class="net.myOrg.dao.hibernate.DaoHibernate">
<constructor-arg value="net.myOrg.intranet.model.Organization"/>
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
</constructor-arg>
</bean>
The DaoBasedManager and DaoHibernate are generic classes that I am wiring in.
The organizationManager works in other places that I am using it, but when I use it in this property editor, that is when it throws the exception. Please let me know if anyone has any ideas.
Thank you,
Ben Scribner
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