delegatingconnectionfactory.java

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/*
 * Copyright 2002-2005 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.jca.cci.connection;

import javax.naming.NamingException;
import javax.naming.Reference;
import javax.resource.ResourceException;
import javax.resource.cci.Connection;
import javax.resource.cci.ConnectionFactory;
import javax.resource.cci.ConnectionSpec;
import javax.resource.cci.RecordFactory;
import javax.resource.cci.ResourceAdapterMetaData;

import org.springframework.beans.factory.InitializingBean;

/**
 * ConnectionFactory implementation that delegates all calls to a given target
 * ConnectionFactory. Abstract because it is meant to be to be subclasses,
 * overriding specific methods that should not simply delegate to the target.
 *
 * @author Juergen Hoeller
 * @since 1.2
 */
public abstract class DelegatingConnectionFactory implements ConnectionFactory, InitializingBean {

	private ConnectionFactory targetConnectionFactory;


	/**
	 * Set the target ConnectionFactory that this ConnectionFactory should delegate to.
	 */
	public void setTargetConnectionFactory(ConnectionFactory targetConnectionFactory) {
		this.targetConnectionFactory = targetConnectionFactory;
	}

	/**
	 * Return the target ConnectionFactory that this ConnectionFactory should delegate to.
	 */
	public ConnectionFactory getTargetConnectionFactory() {
		return targetConnectionFactory;
	}

	public void afterPropertiesSet() {
		if (getTargetConnectionFactory() == null) {
			throw new IllegalArgumentException("targetConnectionFactory is required");
		}
	}


	public Connection getConnection() throws ResourceException {
		return getTargetConnectionFactory().getConnection();
	}

	public Connection getConnection(ConnectionSpec connectionSpec) throws ResourceException {
		return getTargetConnectionFactory().getConnection(connectionSpec);
	}

	public RecordFactory getRecordFactory() throws ResourceException {
		return getTargetConnectionFactory().getRecordFactory();
	}

	public ResourceAdapterMetaData getMetaData() throws ResourceException {
		return getTargetConnectionFactory().getMetaData();
	}

	public void setReference(Reference reference) {
		throw new UnsupportedOperationException("setReference");
	}

	public Reference getReference() throws NamingException {
		throw new UnsupportedOperationException("getReference");
	}

}