ejbcreate

How does an entity bean create a new entity in the database when a client calls the home interface’s create() method?

ejbCreate() is called by the container when a client creates a new entity bean instance. The method inserts a new record into the database and returns the primary key to the container.

1. Client calls home.create(accountID, ownerName) on home interface
2. Container gets a pooled bean instance
3. Container calls ejbCreate(accountID, ownerName) on the bean
4. Bean executes INSERT query to create database record
5. Bean returns the primary key (AccountPK) to container
6. Container creates EJB Object and associates it with the bean
7. Container calls ejbPostCreate() after associating

• Each create method in home interface has a corresponding ejbCreate in bean class
• Must return a Primary Key object to identify the new entity
• In BMP, developer writes INSERT logic in JDBC
• Container triggers after bean is associated with EJB Object
• Parameters vary based on what data the entity needs

• Built from: Entity Bean, Home Interface
• Builds into: ejbPostCreate(), Primary Key
• Related: Bean-Managed Persistence

• Must return a primary key, not the bean itself
• Only called when creating NEW database records (not for existing)
• After ejbCreate() returns, the bean is no longer in pool—it has specific data