Is JMS synchronous or asynchronous?

Is JMS synchronous or asynchronous?

asynchronous
As what I understood, the nature of JMS is asynchronous. Producer publishes messages to the queue/topic, it doesn’t need to wait consumer. This is asynchronous behaviour.

Is JMS part of J2EE?

In a J2EE application that uses the JMS API, you can use transactions to combine message sends or receives with database updates and other resource manager operations. You can access resources from multiple application components within a single transaction.

What are the components of a JMS messaging application?

A JMS application is composed of the following parts: A JMS provider: A messaging system that implements the JMS specification. JMS clients: Java applications that send and receive messages. Messages: Objects that are used to communicate information between JMS clients.

Is ActiveMQ synchronous or asynchronous?

The default setting for ActiveMQ is that all persistent messages outside of a transaction are sent to a broker are synchronous.

What is asynchronous in JMS?

Asynchronous: A JMS provider can deliver messages to a client as they arrive; a client does not have to request messages in order to receive them. Reliable: The JMS API can ensure that a message is delivered once and only once.

What is JMS explain its components?

JMS (Java Message Service) is an API that provides the facility to create, send and read messages. It provides loosely coupled, reliable and asynchronous communication. JMS is also known as a messaging service.

Is the JMS API synchronous or asynchronous message consumption?

JMS API supports both synchronous as well as asynchronous consumption of messages. In this chapter we are discussing the concept of synchronous message consumption with a simple example.

What is a message selector in JMS?

This SQL expression is called a message selector. The message selector can contain the names of JMS message header fields and message properties. For information about how to construct a message selector, see Message selectors in JMS. The JMS specification does not allow an application to change the message selector of a message consumer.

What is the difference between jmsexception and JMS receive?

If this receive is done within a transaction, the consumer retains the message until the transaction commits. JMSException – if the JMS provider fails to receive the next message due to some internal error. Receives the next message that arrives within the specified timeout interval.

What are the different types of message consumers in JMS?

In the publish/subscribe domain, JMS identifies two types of message consumer, nondurable topic subscriber and durable topic subscriber, which are described in the following two sections.