I want to use the 'Persistent' base class model as discussed in the documentation.

I am doing TOP DOWN... so xsd --> java --> hbm --> ddl.

I am trying to run the xdoclet to hbm process, but I get an error stating that my class has no ID attribute.

I am basically trying this:

/**
* @hibnernate.class
* table="Widget"
*/
public class Foo extends Persistent{

public String val = null;

/** @hibernate.property */
public String getVal(){
return val;
}

public void setVal(String val){
this.val = val;
}

}

AND

/**
* @hibnernate.class
* table="Hoser"
*/
public class Bar extends Persistent{

public String vallll = null;

/** @hibernate.property */
public String getVallll(){
return val;
}

public void setVal(String vallll){
this.vallll = vallll;
}

}

AND

/**
* @hibnernate.class
*/
public class Persistent implements .... {

public Serializable identity = null;

/** @hibernate.id*/
public Serializable getIdentity(){
return identity;
}

public void setIdentity(Serializable id){
this.identity= id;
}

}


-------

The idea hear is that I use xdoclet to define what table the Foo class should map to. But I am unsure how map the id to the key for Foo's table Widget. Say: widgetId for example but for Bar's table the ID would map to HoserId.

How would I acheive this in xdoclet....

I want to do this so I don't have to stick id attributes in all my pojo's which are tightly bound to my XSD's.


?? I thought it would be simple.. but I am just not having any luck.

Any feedback would be greatly appreciated.

One solution I have found is to add the following to each child class:

For Foo in example above for instance:

/**
* @hibernate.id
* column="fooId"
* generator-class="hilo"
*/
public Long getIdentity(){
return this._id;
}


Is it necessary to do the setter? Is there anything I am missing here.. or is the the correct way to do it?

Would it be more correct to do:

/**
* @hibernate.id
* column="fooId"
* generator-class="hilo"
*/
public Long getIdentity(){
return (Long) super.getIdentity();
}


Or something similar? Since the Persistent Base class is Serializable I don't know how safe it is to cast it this way. I guess if I also put in a setter that took a Long indentity value I would be better off?

Hi
We think this can help you, you can just take out @hibernate.class from Persistent class and keep all the rest as it's. This might work because We also implement in this way as well. This is my Class detail.

package com.netplus.workstation.user.hibernate.entity;

import java.io.Serializable;

public abstract class HibernateEntity implements Serializable {

protected Long id;
protected String name;

/**
* @hibernate.id
* generator-class="assigned"
* unsaved-value="null"
* @castor.field
* type = "java.lang.Long"
* @castor.field-xml
* name = "id"
* node = "attribute"
*/
public Long getId() {
return this.id;
}

public void setId(Long id) {
this.id = id;
}

/**
* @hibernate.property
* @castor.field
* type = "java.lang.String"
* @castor.field-xml
* name = "name"
* node = "attribute"
*/
public String getName() {
return this.name;
}

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

public int hashCode(){
return this.id.intValue();
}
}
===============================================
package com.netplus.workstation.user.hibernate.entity;

import com.netplus.workstation.user.Group;
import com.netplus.workstation.user.User;
import java.security.Principal;
import java.util.Enumeration;
import java.util.Set;
import java.util.Iterator;
import java.util.HashSet;
import java.util.Vector;

/**
* @hibernate.class table="GROUPS"
*/
public class HibernateGroup extends HibernateEntity implements Group {
private String description;
private Set users;

/**
* @hibernate.property
*/
public String getDescription() {
return this.description;
}

public void setDescription(String description) {
this.description = description;
}

/**
* @hibernate.set name="users" lazy="false" table="GROUPS_USERS"
* @hibernate.collection-key column="groupId"
* @hibernate.collection-many-to-many column="userId"
* class="com.netplus.workstation.user.hibernate.entity.HibernateUser"
*/
public Set getUsers() {
return this.users;
}
......................................
==============================================================

package com.netplus.workstation.user.hibernate.entity;

import com.netplus.workstation.user.Group;
import com.netplus.workstation.user.User;
import java.util.*;

/**
* @hibernate.class table="USERS"
*/
public class HibernateUser extends HibernateEntity implements User {

private String password;
private Set groups;

/**
* @hibernate.property
* @castor.field
* type = "java.lang.String"
*
* @castor.field-xml
* name = "password"
* node = "attribute"
*/
public String getPassword() {
return this.password;
}

public void setPassword(String password) {
this.password = password;
}
/**
* @hibernate.set name="groups" lazy="false" table="GROUPS_USERS"
* @hibernate.collection-key column="userId"
* @hibernate.collection-many-to-many column="groupId"
* class="com.netplus.workstation.user.hibernate.entity.HibernateGroup"
*
* @castor.field
* type = "com.netplus.workstation.user.hibernate.entity.HibernateGroup"
* collection = "set"
*/
public Set getGroups() {
return this.groups;
}

public void setGroups(Set groups) {
this.groups = groups;
}

By the way, we use Xdoclet1.2 with maven..Thanks balloonMan for source code