What is the difference between JMS queue and Topic?
What is the difference between JMS queue and Topic?
Queue is JMS managed object used for holding messages waiting for subscribers to consume. When all subscribers consumed the message , message will be removed from queue. Topic is that all subscribers to a topic receive the same message when the message is published.
What is the difference between a topic and a queue?
In queue, you only have one receiver or consumer; unlike in topic where in you can have your message be disseminated to a number of subscribers. Also, in topic, the publisher has to be continuously active for a subscriber to receive the messages. Otherwise the message will be reallocated.
Is a topic a queue?
Queues and Topics are similar when a sender sends messages, but messages are processed differently by a receiver. A queue can have only one consumer, whereas a topic can have multiple subscribers.
What is meant by JMS topics?
A JMS destination is an object (a JMS queue or a JMS topic) that represents the target of messages that the client produces and the source of messages that the client consumes. In point-to-point messaging, destinations represent queues; in publish/subscribe messaging, destinations represent topics.
What is difference between JMS and MQ?
JMS is the specification provided by Sun for messaging. MQ Queue is the IBM’s implementation of JMS. Similary JBoss has its own implementation. JMS Queue is the generic term.
Is Kafka topic a queue?
Kafka as a Queue A Kafka topic is sub-divided into units called partitions for fault tolerance and scalability. Consumer Groups allow Kafka to behave like a Queue, since each consumer instance in a group processes data from a non-overlapping set of partitions (within a Kafka topic).
What is queue and Topic in ActiveMQ?
ActiveMQ queue is a pipeline of messages where a message comes in and goes to just one subscriber. ActiveMQ topic is a pipeline of messages where a message comes in and goes to every subscriber. Both ActiveMQ queue and ActiveMQ topic are places where messages are sent. The difference is in who receives the message.
Why do we use JMS queue?
JMS supports both messaging models: point-to-point (queuing) and publish-subscribe. JMS was defined to allow Java application to use enterprise messaging systems. More importantly, it provides a common way for Java applications to access such enterprise messaging systems.
What is ActiveMQ topic?
ActiveMQ topic is a pipeline of messages where a message comes in and goes to every subscriber. Both ActiveMQ queue and ActiveMQ topic are places where messages are sent. The difference is in who receives the message. The ActiveMQ queue is a dynamic queue.
What is JMS in MQ?
The Java Message Service (JMS) is a Java API that enables applications to asynchronously send and receive messages. WebSphere Application Server V7 and higher supports JMS 1.1. Messages are managed by an enterprise messaging system.
Is IBM MQ a JMS provider?
IBM® MQ classes for JMS is the JMS provider that is supplied with IBM MQ. IBM MQ classes for JMS implements the interfaces defined in the javax. jms package, and also provides two sets of extensions to the JMS API.
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