probleme avec hibernate

bonjour,

j'en ai un problème avec hibernate au niveau de l'ajout d'un nouveau enregistrement d'où il se produit toujours une erreur.
notez que le nouveau enregistrement est représente par l'objet suivant au niveau de jsfBean:

Code:

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IdResultatAnnuel idResan=new IdResultatAnnuel();
			      idResan.setAnneeuniv("2009");
			      idResan.setCodeEtudiant("1145001033");
			      idResan.setCodeSession("1");
			      idResan.setNiveauId("1");
 
			      ResultatAnnuel resan=new ResultatAnnuel();
			      resan.setIdResultatAnnuel(idResan);
			      resan.setConstatations("const");
			      resan.setMoyenneAnnuelle("12.00");
			      resan.setNombreDeCredits("12");
 
 
  this.resultatAnnuelService.saveResultatAnnuel(resAn);

et si je met à la place 12.00 une valeur décimal par exemple 12 il marche bien, et lorsque je fais un casting vers string il ne marche pas.
aussi le type de champ qui correspond a cet attribut au niveau de la base de donnée est de type number(4,2).

voici l'erreur qui suit:

Code:

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ORA-01722: Nombre non valide
 
ORA-01722: Nombre non valide
 
Could not synchronize database state with session
org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update
	at org.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:92)
	at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:80)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:181)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:226)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:136)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:274)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:730)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:324)
	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:86)
	at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:490)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:446)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:421)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.doCommitTransactionAfterReturning(TransactionAspectSupport.java:258)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:67)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:174)
	at $Proxy31.saveResultatAnnuel(Unknown Source)
	at mesp.si.jsfbean.InscriptionBean.affectEtudAdmisC1(InscriptionBean.java:253)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126)
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:72)
	at javax.faces.component.UICommand.broadcast(UICommand.java:312)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75)
	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:301)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.sql.BatchUpdateException: ORA-01722: Nombre non valide
 
	at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:367)
	at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:9119)
	at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeBatch(NewProxyPreparedStatement.java:1723)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:57)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:174)
	... 44 more
Exception au niveau d'affectation des etudiants admis Cas1 au niveau suivant
org.springframework.dao.DataIntegrityViolationException: Hibernate operation: Could not execute JDBC batch update; SQL [insert into RESULTAT_ANNUEL (MOYENNE_ANNUELLE, NOMBRE_DE_CREDITS, CONSTATATIONS, CODEETUDIANT, CODESESSION, ANNEE_UNIV, NIVEAUID) values (?, ?, ?, ?, ?, ?, ?)]; ORA-01722: Nombre non valide
; nested exception is java.sql.BatchUpdateException: ORA-01722: Nombre non valide
 
java.sql.BatchUpdateException: ORA-01722: Nombre non valide
 
	at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:367)
	at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:9119)
	at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeBatch(NewProxyPreparedStatement.java:1723)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:57)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:174)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:226)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:136)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:274)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:730)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:324)
	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:86)
	at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:490)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:446)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:421)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.doCommitTransactionAfterReturning(TransactionAspectSupport.java:258)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:67)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:174)
	at $Proxy31.saveResultatAnnuel(Unknown Source)
	at mesp.si.jsfbean.InscriptionBean.affectEtudAdmisC1(InscriptionBean.java:253)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126)
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:72)
	at javax.faces.component.UICommand.broadcast(UICommand.java:312)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75)
	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:301)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Unknown Source)

SVP ya t'il quelqu'un peut m'aider ?

merci.