What is the use of ObjectMessage?
Answer / munnu
ObjectMessage contains a Serializable java object as it's payload. Thus it allows exchange of Java objects between applications. This in itself mandates that both the applications be Java applications. The consumer of the message must typecast the object received to it's appropriate type. Thus the consumer should before hand know the actual type of the object sent by the sender. Wrong type casting would result in ClassCastException. Moreover the class definition of the object set in the payload should be available on both the machine, the sender as well as the consumer. If the class definition is not available in the consumer machine, an attempt to type cast would result in ClassNotFoundException. Some of the MOMs might support dynamic loading of the desired class over the network, but the JMS specification does not mandate this behavior and would be a value added service if provided by your vendor. And relying on any such vendor specific functionality would hamper the portability of your application. Most of the time the class need to be put in the classpath of both, the sender and the consumer, manually by the developer.
Is This Answer Correct ? | 0 Yes | 0 No |
What is jms module?
What is Producer and Consumer?
What are the components of a jms messaging application?
Explain how Application server handles the JMS Connection?
What is the use of JMS? In which situations we are using JMS? Can we send message from one server to another server using JMS?
How does a sender application transport/send a message through jms?
What is jms connection?
What is a topic?
What is the use of MapMessage?
Explain how does the JMS work with the J2EE?
How jndi is related to jms?
How to write junit test cases for jms?