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An error occurred while validating jca transport endpoint

The listener container is responsible for all threading of message reception and dispatches into the listener for processing.

A message listener container is the intermediary between an MDP and a messaging provider, and takes care of registering to receive messages, participating in transactions, resource acquisition and release, exception conversion and suchlike.

Spring offers a solution to create message-driven POJOs (MDPs) in a way that does not tie a user to an EJB container.

(See Section 26.4.2, “Asynchronous Reception - Message-Driven POJOs” for detailed coverage of Spring’s MDP support.) As from Spring Framework 4.1, endpoint methods can be simply annotated using that is injected into it.

Note that the number of actual cached sessions will be more than that number as sessions are cached based on their acknowledgment mode, so there can be up to 4 cached session instances when is set to one, one for each acknowledgment mode.

Message Producers and Message Consumers are cached within their owning session and also take into account the unique properties of the producers and consumers when caching.

It simplifies the use of JMS since it handles the creation and release of resources when sending or synchronously receiving messages. The JMS API exposes two types of send methods, one that takes delivery mode, priority, and time-to-live as Quality of Service (QOS) parameters and one that takes no QOS parameters which uses default values.

For asynchronous reception similar to Java EE’s message-driven bean style, Spring provides a number of message listener containers that are used to create Message-Driven POJOs (MDPs).

Spring also provides a declarative way of creating message listeners. The design principle common to Spring template classes is to provide helper methods to perform common operations and for more sophisticated usage, delegate the essence of the processing task to user implemented callback interfaces. The classes offer various convenience methods for the sending of messages, consuming a message synchronously, and exposing the JMS session and message producer to the user.

Examples of such advanced destination management would be the creation of dynamic destinations or support for a hierarchical namespace of destinations. Quite often the destinations used in a JMS application are only known at runtime and therefore cannot be administratively created when the application is deployed.

This is often because there is shared application logic between interacting system components that create destinations at runtime according to a well-known naming convention.

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