i have a base class and a child class. in base class i declared a variable of type set which is child class. i am trying to store the data of base table using session.save(base). will it store the data of child also? as i used Set. i have written in mapping file 1-m relationship. it is giving me the error.
base class properties : String accid,String accname,privaet Set user child class properties : String userid,accid,uname,pwd
my.package.Account acc=new my.package.Account();
Set hs=new HashSet(); hs.add("1"); hs.add("1"); hs.add("warner"); hs.add("warner");
acc.setAccname("p&g"); acc.setUser(hs);
session.save(acc);
Error:
Exception in thread "main" org.hibernate.PropertyAccessException: IllegalArgumen tException occurred calling getter of sas.login.User.userid at org.hibernate.property.BasicPropertyAccessor$BasicGetter.geti want to store the base and child table data. at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPr ertyAccessor.java:171) at org.hibernate.tuple.AbstractEntityTuplizer.getIdentifier(AbstractEnt yTuplizer.java:176) at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier bstractEntityPersister.java:3257) at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(A tractEntityPersister.java:2983) at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181) at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(Abs actSaveEventListener.java:460) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSave Update(DefaultSaveOrUpdateEventListener.java:84) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpd e(DefaultSaveOrUpdateEventListener.java:70) at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:502
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:494) at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java: 4) at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:213) at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:157) at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108) at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java: 0) at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:185) at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:160) at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108) at org.hibernate.engine.Cascade.cascade(Cascade.java:248) at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(A tractSaveEventListener.java:410) at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrRepli te(AbstractSaveEventListener.java:299) at org.hibernate.event.def.AbstractSaveEventListener.performSave(Abstra SaveEventListener.java:167) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedI AbstractSaveEventListener.java:114) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGen atedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186) at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOr questedId(DefaultSaveEventListener.java:33) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTra ient(DefaultSaveOrUpdateEventListener.java:175) at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate efaultSaveEventListener.java:27) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpd e(DefaultSaveOrUpdateEventListener.java:70) at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:530) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:518) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:514) at Test.main(Test.java:23) aused by: java.lang.IllegalArgumentException: object is not an instance of dec ring class at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl ava:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce orImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPr ertyAccessor.java:145)
Your POJO needs to have both getters and setters for the properties. I think one of them is missing. Please post you Java code and the mapping files for the POJO. Also in your mapping from the one side you need to set your cascade option to save-update. I'd also make sure that the inverse="true" is on the many side mapping.
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