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Why is there no polymorphic-type response from a create() or find() method?
Ans) The EJB Specification forbids this behavior, and the weblogic.ejbc compiler checks for this behavior and prohibits any polymorphic type of response from a create() or find() method.
The cause the create() and find() methods are not polymorphic is same to the reason constructors are not polymorphic in Java. The derived classes commonly do not know or cannot initialize the base class properly.
Advantage of wrapping database calls into MTS transaction If database calls are complete within the context of a transaction, aborting the transaction will undo and changes that
What are difference between Mealy and Moore state machine? Difference between Mealy and Moore state machine: 1) Mealy and Moore models are the fundamental models of state ma
Authorization Bypass is a frighteningly easy process which can be employed with poorly designed applications or content management frameworks. You know how it is... you run a small
State about the machine language programs The computer can run only machine language programs, one needs to translate above programs to machine language programs. To translate
Question 1: a) The aim of a computer network is to increase efficiency and reduce costs. Describe how networks achieve the above. b) Explain briefly how the bus topology op
What is metadata? Metadata is data that explains another data. Class definition is metadata. Models are inherently metadata as they explain the things being modeled.
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reate a directory "Unix" under your home directory. Command(s): ………………………………………….
What is the use of buffer register? The buffer register is used to avoid speed mismatch among the I/O device and the processor.
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