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/**
* This defines a contract for a message endpoint. This is implemented by an
* application server.
*
* @version 1.0
* @author Ram Jeyaraman
*/
public interface MessageEndpoint {
/**
* This is called by a resource adapter before a message is delivered.
*
* @param method description of a target method. This information about
* the intended target method allows an application server to decide
* whether to start a transaction during this method call, depending
* on the transaction preferences of the target method.
* The processing (by the application server) of the actual message
* delivery method call on the endpoint must be independent of the
* class loader associated with this descriptive method object.
*
* @throws NoSuchMethodException indicates that the specified method
* does not exist on the target endpoint.
*
* @throws ResourceException generic exception.
*
* @throws ApplicationServerInternalException indicates an error
* condition in the application server.
*
* @throws IllegalStateException indicates that the endpoint is in an
* illegal state for the method invocation. For example, this occurs when
* <code>beforeDelivery</code> and <code>afterDelivery</code>
* method calls are not paired.
*
* @throws UnavailableException indicates that the endpoint is not
* available.
*/
throws NoSuchMethodException, ResourceException;
/**
* This is called by a resource adapter after a message is delivered.
*
* @throws ResourceException generic exception.
*
* @throws ApplicationServerInternalException indicates an error
* condition in the application server.
*
* @throws IllegalStateException indicates that the endpoint is in an
* illegal state for the method invocation. For example, this occurs when
* beforeDelivery and afterDelivery method calls are not paired.
*
* @throws UnavailableException indicates that the endpoint is not
* available.
*/
/**
* This method may be called by the resource adapter to indicate that it
* no longer needs a proxy endpoint instance. This hint may be used by
* the application server for endpoint pooling decisions.
*/
void release();
}