Hi All,

Pls I have being bugged down by the detached entity exception I have tried lots of things all to no avail
below is an extract from my entity class .

package com.taysay.drivetru.entity;

import static org.jboss.seam.ScopeType.SESSION;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.TableGenerator;

import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;



@Entity
@Name("demo")
@Scope(SESSION)
@Table(name="DEMO")
public class Demo implements Serializable {


private int id;
private String name;


@TableGenerator(name="demo_Gen",
table="ID_GEN",
pkColumnName="GEN_NAME",
valueColumnName="GEN_VAL",
pkColumnValue="demoid_Gen",
initialValue=10000,
allocationSize=100)
@Id @GeneratedValue(strategy=GenerationType.TABLE,generator="demo_Gen")
@Column(name="DEMO_ID")
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
@Column(name="NAME")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}


}


// Action class

package com.taysay.drivetru.actions;

import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;

import org.hibernate.Session;
import org.hibernate.Transaction;
import org.jboss.seam.annotations.Destroy;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Out;

import com.taysay.drivetru.entity.Demo;


//@Stateless
@Stateful
@Name("demoManager")
public class DemoActionBean implements DemoManager{

// @PersistenceContext
@PersistenceContext (type=PersistenceContextType.EXTENDED)
private EntityManager em;

@In (required=false) @Out (required=false)
private Demo demo;

public void save()
{
System.out.println(": THE SAVE DEMO :"+demo.getId());


em.persist(demo);


}

@Destroy @Remove
public void destroy() { }


}

// Interface

package com.taysay.drivetru.actions;

public interface DemoManager {

public void save();

public void destroy();

}


now I came don to this simple class when I had issues in some other class so wrote a simple class with the aim of
having a more manageable situation.

initially I had my EntityManager em; annotated with the // @PersistenceContext

but when the exception was thrown i did this (the EXTENDED clause)
@PersistenceContext (type=PersistenceContextType.EXTENDED)

Yet this ugly exception wont let me be , I am working from eclipse ganymede Version: 3.4.2


Pls can some one tell me what exactly i am doing wrong, what happen is that I am generating my Id from a table
now at the first instance of application start off I get to make a successfull insertion to the back end (MYSQL 5) but subsequent attempts lead to this ugly guy throwing exceptions at me. prior to a successful insertion the ID is 0 but subsequently it carries the values of the just persisted id .

Pls I urgently need help, Asap


Thanks in earnest for your invaluable help. Thank you Have a wonderful day.


Have a bug free week .

Taysay