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Spring Framework example source code file (SingleConnectionFactory102.java)

This example Spring Framework source code file (SingleConnectionFactory102.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

connection, illegalargumentexception, jms, jmsexception, queueconnectionfactory, queueconnectionfactory, singleconnectionfactory, singleconnectionfactory, singleconnectionfactory102, singleconnectionfactory102, specified, spring, topicconnectionfactory, topicconnectionfactory

The Spring Framework SingleConnectionFactory102.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.jms.connection;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.QueueConnectionFactory;
import javax.jms.TopicConnectionFactory;

/**
 * A subclass of {@link SingleConnectionFactory} for the JMS 1.0.2 specification,
 * not relying on JMS 1.1 methods like SingleConnectionFactory itself.
 * This class can be used for JMS 1.0.2 providers, offering the same API as
 * SingleConnectionFactory does for JMS 1.1 providers.
 *
 * <p>You need to set the {@link #setPubSubDomain "pubSubDomain" property},
 * since this class will always explicitly differentiate between a
 * {@link javax.jms.QueueConnection} and a {@link javax.jms.TopicConnection}.
 *
 * @author Juergen Hoeller
 * @since 1.1
 * @see #setTargetConnectionFactory
 * @see #setPubSubDomain
 */
public class SingleConnectionFactory102 extends SingleConnectionFactory {

	private boolean pubSubDomain = false;


	/**
	 * Create a new SingleConnectionFactory102 for bean-style usage.
	 */
	public SingleConnectionFactory102() {
		super();
	}

	/**
	 * Create a new SingleConnectionFactory102 that always returns a single
	 * Connection that it will lazily create via the given target
	 * ConnectionFactory.
	 * @param connectionFactory the target ConnectionFactory
	 * @param pubSubDomain whether the Publish/Subscribe domain (Topics) or
	 * Point-to-Point domain (Queues) should be used
	 */
	public SingleConnectionFactory102(ConnectionFactory connectionFactory, boolean pubSubDomain) {
		setTargetConnectionFactory(connectionFactory);
		this.pubSubDomain = pubSubDomain;
		afterPropertiesSet();
	}


	/**
	 * Configure the factory with knowledge of the JMS domain used.
	 * This tells the JMS 1.0.2 provider which class hierarchy to use for creating
	 * Connections and Sessions.
	 * <p>Default is Point-to-Point (Queues).
	 * @param pubSubDomain <code>true for Publish/Subscribe domain (Topics),
	 * <code>false for Point-to-Point domain (Queues)
	 */
	public void setPubSubDomain(boolean pubSubDomain) {
		this.pubSubDomain = pubSubDomain;
	}

	/**
	 * Return whether the Publish/Subscribe domain (Topics) is used.
	 * Otherwise, the Point-to-Point domain (Queues) is used.
	 */
	public boolean isPubSubDomain() {
		return this.pubSubDomain;
	}


	/**
	 * In addition to checking whether the target ConnectionFactory is set,
	 * make sure that the supplied factory is of the appropriate type for
	 * the specified destination type: QueueConnectionFactory for queues,
	 * TopicConnectionFactory for topics.
	 */
	public void afterPropertiesSet() {
		super.afterPropertiesSet();

		// Make sure that the ConnectionFactory passed is consistent.
		// Some provider implementations of the ConnectionFactory interface
		// implement both domain interfaces under the cover, so just check if
		// the selected domain is consistent with the type of connection factory.
		if (isPubSubDomain()) {
			if (!(getTargetConnectionFactory() instanceof TopicConnectionFactory)) {
				throw new IllegalArgumentException(
						"Specified a Spring JMS 1.0.2 SingleConnectionFactory for topics " +
						"but did not supply an instance of TopicConnectionFactory");
			}
		}
		else {
			if (!(getTargetConnectionFactory() instanceof QueueConnectionFactory)) {
				throw new IllegalArgumentException(
						"Specified a Spring JMS 1.0.2 SingleConnectionFactory for queues " +
						"but did not supply an instance of QueueConnectionFactory");
			}
		}
	}

	/**
	 * This implementation overrides the superclass method to use JMS 1.0.2 API.
	 */
	protected Connection doCreateConnection() throws JMSException {
		if (isPubSubDomain()) {
			return ((TopicConnectionFactory) getTargetConnectionFactory()).createTopicConnection();
		}
		else {
			return ((QueueConnectionFactory) getTargetConnectionFactory()).createQueueConnection();
		}
	}

}

Other Spring Framework examples (source code examples)

Here is a short list of links related to this Spring Framework SingleConnectionFactory102.java source code file:



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