By What is durable subscriber in JMS?
A durable subscriber registers a durable subscription by specifying a unique identity that is retained by the JMS provider. If a durable subscription has no active subscriber, the JMS provider retains the subscription’s messages until they are received by the subscription or until they expire.
What is Camel JMS?
Allows you to force the use of a specific javax.jms.Message implementation for sending JMS messages. Possible values are: Bytes, Map, Object, Stream, Text. By default, Camel would determine which JMS message type to use from the In body type.
What is JMS subscription?
The JMS 2.0 specification introduced the concept of shared subscriptions, which enables a single subscription to be opened by one or more consumers. The messages are shared amongst all of these consumers. There is no restriction where these consumers are so long as they connect to the same queue manager.
What is Camel route?
A Camel route is where the integration flow is defined. For example to integrate two systems then a Camel route can be coded to specify how these systems are integrated. An example could be to take files from a FTP server and send to a ActiveMQ messaging system. This can be coded in a route using Java with the Java DSL.
How do you make a subscriber durable?
To create a durable subscriber for a topic, an application calls the Create Durable Subscriber method of a Session object, specifying as parameters a name that identifies the durable subscription and a Destination object representing the topic.
How do I create a durable subscriber in JMS WebLogic?
Steps to Configure Durable Subscribers Topic:
- Start your WebLogic Server an Login to the Admin Console.
- Create a JMS Server and File store. Creating JMS Server.
- Configuring JMS Module. Creating JMS Module.
- Creating Connection Factory.
- Creating Sub-Deployment.
- Creating a Topic.
- Creating Durable Subscriptions.
What is Seda in Apache Camel?
SEDA is an acronym that stands for Staged Event Driven Architecture it is designed as a mechanism to regulate the flow between different phases of message processing.
What is Apache Camel in Java?
Apache Camel is an open source framework for message-oriented middleware with a rule-based routing and mediation engine that provides a Java object-based implementation of the Enterprise Integration Patterns using an application programming interface (or declarative Java domain-specific language) to configure routing …
What is a durable subscription?
A durable subscriber is a message consumer that receives all messages published on a topic, including messages published while the subscriber is inactive.
What is JMS queue?
Asynchronous transactions that are exchanged using either publish channels or enterprise services, use Java Message Service (JMS) queues to exchange data with an external system. Messages remain in an inbound queue until they are successfully processed or until they are deleted from the queue. …
When to use durable topic subscriptions in camel?
You can also use this option if you want to use Camel as a proxy between different message brokers and you want to route message from one system to another. The durable subscriber name for specifying durable topic subscriptions. The clientId option must be configured as well.
What is the durable subscriber name in Apache Camel?
The durable subscriber name for specifying durable topic subscriptions. The clientId option must be configured as well. Allows you to force the use of a specific javax.jms.Message implementation for sending JMS messages. Possible values are: Bytes, Map, Object, Stream, Text.
When to use JMS acknowledgement mode in camel?
The JMS acknowledgement mode defined as an Integer. Allows you to set vendor-specific extensions to the acknowledgment mode. For the regular modes, it is preferable to use the acknowledgementModeName instead. If true, Camel will always make a JMS message copy of the message when it is passed to the producer for sending.
What happens if a JMS subscription has no active subscriber?
If a durable subscription has no active subscriber, the JMS provider retains the subscription’s messages until they are received by the subscription or until they expire. You establish the unique identity of a durable subscriber by setting the following: A client ID for the connection.