ids for this class must be manually assigned

sharonpl · **Joined:** Tue Jul 03, 2007 11:11 am **Posts:** 22

Hi all
I get this exception when persisting very simple object:

Code:

org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save

The ID is auto_increment and mapped as Integer.
The DB is MySql v 5.0.41 running on winxp pro.

Any idea?
Thank you
Sharon

Code:

mysql> desc identifier;
+---------------+----------+------+-----+---------+----------------+
| Field         | Type     | Null | Key | Default | Extra          |
+---------------+----------+------+-----+---------+----------------+
| IDENTIFIER_ID | int(11)  | NO   | PRI | NULL    | auto_increment |
| NAME          | char(50) | NO   | UNI |         |                |
+---------------+----------+------+-----+---------+----------------+
2 rows in set (0.00 sec)

The entity:

Code:

@Entity
@Table(catalog="db_name", name="identifier")
public class Identifier {

   private Integer identifierId;
   private String name;

   @Basic
   @Column(name = "NAME", nullable = false, length = 50)
   public String getName() {
      return name;
   }

   public void setName(String name) {
      this.name = name;
   }

   @Id   
   @Column(name = "IDENTIFIER_ID", nullable = false, length = 10)
   public Integer getIdentifierId() {
      return identifierId;
   }

   public void setIdentifierId(Integer identifierId) {
      this.identifierId = identifierId;
   }
}

Exception:

Code:

org.apache.cxf.phase.PhaseInterceptorChain doIntercept Interceptor has thrown exception, unwinding now
pache.cxf.interceptor.Fault: 

org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): com.company.db_name.service.beans.persistence.Idier
   at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:85)
   at org.apache.cxf.jaxws.JAXWSMethodInvoker.invoke(JAXWSMethodInvoker.java:82)
   at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:56)
   at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:56)
   at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)
   at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:87)
   at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:206)
   at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:67)
   at org.apache.cxf.transport.servlet.ServletDestination.doMessage(ServletDestination.java:100)
   at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:224)
   at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:137)
   at org.apache.cxf.transport.servlet.CXFServlet.invoke(CXFServlet.java:261)
   at org.apache.cxf.transport.servlet.CXFServlet.doPost(CXFServlet.java:239)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
   at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:852)
   at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:584)
   at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1508)

kumar.hibernate · **Posted:** Fri Oct 05, 2007 6:08 am

In hibernate we have facility to generate the ID automatically by hibernate frame work.

u have to do is
In "

Code:

***.hbm.xml

" File u have to set the Tag Id as increment please go through the Hibernate 3.1 reference.....PDF...

viknewsh · **Posted:** Fri Oct 05, 2007 7:33 am

sharonpl · **Joined:** Tue Jul 03, 2007 11:11 am **Posts:** 22

Its working using this annotation :

Code:

@GeneratedValue(strategy=GenerationType.AUTO)

(with auto_increment on)
db = MySql
Using JPA EntityManager and not Hibernate session

Thank you
Sharon