Difference: JavaEntityBeans (1 vs. 2)

Revision 206 Apr 2001 - TobyCabot

  implement EntityBean
  have an empty constructor, and no finalize method
  implement zero or more ejbCreate() and ejbPostCreate() methods
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+ implement the
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+To learn more: http://java.sun.com/j2ee/tutorial/doc/Entity.html , but the Account entity bean doesn't work with jboss because it holds the Connection instead of closing it for each method.
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+To learn more: http://java.sun.com/j2ee/tutorial/doc/Entity.html
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+Although it's important to understand how all the various interfaces work, most of the code generation can be automated by a tool called EJBDoclet which is a clever little javadoc plugin.
 -- TobyCabot - 03 Apr 2001

Revision 103 Apr 2001 - TobyCabot

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> >	An Entity Bean is persistent. The persistence can be CMP (container-managed persistence) or BMP (bean-managed persistence). Each bean has a primary key which is basically analogous to a rdbms primary key in that it uniquely identifies a specific bean. A bean can have transactional properties that allow it to participate in transactions, which are usually managed by the container. A bean must have: Remote Interface ( `Foo` ) - business methods used by the client Home Interface ( `FooHome` ) - methods used by the client to create and find the bean Entity Bean Class ( `FooEJB` ) - the actual bean code The entity bean class must: be declared `public` implement `EntityBean` have an empty constructor, and no finalize method implement zero or more `ejbCreate()` and `ejbPostCreate()` methods implement the To learn more: http://java.sun.com/j2ee/tutorial/doc/Entity.html -- TobyCabot - 03 Apr 2001

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An Entity Bean is persistent. The persistence can be CMP (container-managed persistence) or BMP (bean-managed persistence). Each bean has a primary key which is basically analogous to a rdbms primary key in that it uniquely identifies a specific bean. A bean can have transactional properties that allow it to participate in transactions, which are usually managed by the container.

A bean must have:

Remote Interface ( Foo ) - business methods used by the client
Home Interface ( FooHome ) - methods used by the client to create and find the bean
Entity Bean Class ( FooEJB ) - the actual bean code

The entity bean class must:

be declared public
implement EntityBean
have an empty constructor, and no finalize method
implement zero or more ejbCreate() and ejbPostCreate() methods
implement the

To learn more: http://java.sun.com/j2ee/tutorial/doc/Entity.html

-- TobyCabot - 03 Apr 2001

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