What are Building Blocks of a JMS application?
Answer / neha
Connection :- It is a virtual connection with JMS provider.
Session :- It is a single threaded context for producing and consuming messages.
Message Producer :- It is created from a session and is using to send messages to destinations.
Message Consumers :- It is also created from a session and is using to receive messages from destination.
Message Selector :- To filter the messages received.
Message :-Message objects are sending in JMS. A JMS message has 3 parts
a)header :- It contains a number of predefined fields using for proper delivery and routing.
b)body :- As the name suggests it is the body of messages. JMS API allows five types of message bodies.
1.TextMessage :- Body contains String data
2.ByteMessage :- Body contains byte data
3. MapMessage :- Body contains data in key/value pair
4.StreamMessage :-Body contains a stream of primitive values
5.ObjectMessage : – Body contains an object
6.Message :- Nothing in body. Only header and properties.
c)properties :- Additional properties other than header.
| Is This Answer Correct ? | 1 Yes | 0 No |
Give an example of using the point-to-point model
Explain about message listeners?
What is a bytes message?
What is jms message?
What are jms channels?
What is jms in java with example?
How does a sender application transport/send a message through jms?
What is the use of jms? Can we send message from one server to another server using jms?
What is jms message broker?
What is the use of TextMessage?
Explain about publish model?
What is a jms queue?