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Transaction attribute required and requiresnew TransactionAttributeType is a type enum and used with the TransactionAttribute annotation which specify whether the methods of a session bean or message driven bean are called with a valid transaction context. EJB bean implements the SessionSynchronization interface or the annotations where the values required is as follows: REQUIRED, REQUIRES_NEW. These are basically the methods used by the Java Beans. To elaborate more on these terms: REQUIRED- is used if a client the enterprise bean's method while the client is associated with a transaction context. The container establishes the connection of the bean in the client's transaction context. REQUIRES_NEW- is used when the container invokes an enterprise bean method whose transaction attribute is set to REQUIRES_NEW with a new transaction context. Rohit Sharma 08-25-2014 07:37 PM

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