jakarta.resource.spi.endpoint.MessageEndpointFactory Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package jakarta.resource.spi.endpoint;
import javax.transaction.xa.XAResource;
import jakarta.resource.spi.UnavailableException;
/**
* This serves as a factory for creating message endpoints.
*
* @version 1.7
* @since 1.5
* @author Ram Jeyaraman, Sivakumar Thyagarajan
*/
public interface MessageEndpointFactory {
/**
* This is used to create a message endpoint. The message endpoint is
* expected to implement the correct message listener type.
*
* @param xaResource an optional XAResource
* instance used to get transaction notifications when the message delivery
* is transacted.
*
* @return a message endpoint instance.
*
* @throws UnavailableException indicates a transient failure
* in creating a message endpoint. Subsequent attempts to create a message
* endpoint might succeed.
*/
MessageEndpoint createEndpoint(XAResource xaResource)
throws UnavailableException;
/**
* This is used to create a message endpoint. The message endpoint is
* expected to implement the correct message listener type.
*
* @param xaResource an optional XAResource
* instance used to get transaction notifications when the message delivery
* is transacted.
*
* @param timeout an optional value used to specify the time duration
* (in milliseconds) within which the message endpoint needs to be
* created by the MessageEndpointFactory. Otherwise, the
* MessageEndpointFactory rejects the creation of the
* MessageEndpoint with an UnavailableException. Note, this
* does not offer real-time guarantees.
*
* @return a message endpoint instance.
*
* @throws UnavailableException indicates a transient failure
* in creating a message endpoint. Subsequent attempts to create a message
* endpoint might succeed.
* @since 1.6
*/
MessageEndpoint createEndpoint(XAResource xaResource, long timeout)
throws UnavailableException;
/**
* This is used to find out whether message deliveries to a target method
* on a message listener interface that is implemented by a message
* endpoint or a target method in the Class returned by the
* getBeanClass method, will be transacted or not.
*
* The message endpoint may indicate its transacted delivery preferences
* (at a per method level) through its deployment descriptor. The message
* delivery preferences must not change during the lifetime of a
* message endpoint.
*
* @param method description of a target method. This information about
* the intended target method allows an application server to find out
* whether the target method call will be transacted or not.
*
* @throws NoSuchMethodException indicates that the specified method
* does not exist on the target endpoint.
*
* @return true, if message endpoint requires transacted message delivery.
*/
boolean isDeliveryTransacted(java.lang.reflect.Method method)
throws NoSuchMethodException;
/**
* Returns a unique name for the message endpoint deployment represented
* by the MessageEndpointFactory. If the message endpoint has
* been deployed into a clustered application server then this method must
* return the same name for that message endpoint’s activation in each
* application server instance.
*
* It is recommended that this name be human-readable since this name may
* be used by the resource adapter in ways that may be visible to a user
* or administrator.
*
* It is also recommended that this name remain unchanged even in cases
* when the application server is restarted or the message endpoint
* redeployed.
*
* @return a new String instance representing the unique
* name of the message endpoint deployment
*
* @since 1.7
*/
String getActivationName();
/**
* Return the Class object corresponding to the message
* endpoint class. For example, for a Message Driven Bean this is the
* Class object corresponding to the application's MDB class.
*
* The resource adapter may use this to introspect the
* message endpoint class to discover annotations, interfaces implemented,
* etc. and modify the behavior of the resource adapter accordingly.
*
* A return value of null indicates that the
* MessageEndpoint doesn't implement the business methods of
* underlying message endpoint class.
*
* @return A Class corresponding to the message endpoint class.
*
* @since 1.7
*/
public Class getEndpointClass();
}