␡
- Entity Bean
- Session Bean
- Message Bean
- Relationships
- Going Forward
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Session Bean
The tags involved in creating a session bean are mostly a subset of those used to create an entity bean. All the tags that are required are the same as for an entity bean. Therefore just an example of a session bean should be sufficient:
package com.dzrealms.example.entity;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.CreateException;
/**
* @ejb.bean name="ExampleSessionBean"
* jndi-name="example/remote/ExampleSession"
* local-jndi-name="example/local/ExampleSession"
*
* @ejb.interface
* remote-class="com.dzrealms.example.entity.ExampleSessionRemote"
* local-class="com.dzrealms.example.entity.ExampleSessionLocal"
*
* @ejb.home
* remote-class="com.dzrealms.example.entity.ExampleSessionRemoteHome"
* local-class="com.dzrealms.example.entity.ExampleSessionLocalHome"
*/
public class ExampleSessionBean implements SessionBean {
/**
* @ejb.create-method
* @throws CreateException
*/
public void ejbCreate() throws CreateException {
}
/**
* @ejb.interface-method
*/
public void doSomethingUseful() {
}
public void setSessionContext(SessionContext context) {
}
public void ejbRemove() {
}
public void ejbActivate() {
}
public void ejbPassivate() {
}
}
The tags involved for a session bean are extremely straightforward. Other than defining the names for the interfaces and the jndi, there is nothing else involved. After the class tags are defined, it is just a matter of adding the methods to the interfaces as needed.