EJB ejbFindByPrimaryKey: Why is ejbFindByPrimaryKey mandatory?

Answer
Primary Keys are used to uniquely identify objects from a database. The ejbFindByPrimaryKey method is used to locate and load an Entity Bean into the container. The client can be assured to that they can retrieve the bean without having to create a new one, IF they have a primary key associated.

NOTE: The creation of new data would threaten the integrity of the EJBs due to duplication

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EJB ejbFindByPrimaryKey

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Why is ejbFindByPrimaryKey mandatory?

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More Related Links

Define session façade.

What is the difference between CMP and BMP?

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EJB ejbFindByPrimaryKey

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Why is ejbFindByPrimaryKey mandatory?

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More Related Links

Define session façade.

What is the difference between CMP and BMP?

What are transaction isolation levels in EJB?

What is bean managed transaction?

What is abstract schema?