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/*
 * Copyright 2004-2007 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.webflow.config;

import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.NamespaceHandlerSupport;

/**
 * NamespaceHandler for the webflow-config namespace.
 * 
 * Provides {@link BeanDefinitionParser bean definition parsers} for the <executor> and
 * <registry> tags. An executor tag can include an execution-listeners
 * tag and a registry tag can include location tags.
 * 

 * Using the executor tag you can configure a {@link FlowExecutorFactoryBean} that creates a
 * {@link org.springframework.webflow.executor.FlowExecutor}. The executor tag allows you to specify the
 * repository type and a reference to a registry.
 * 
 * 
 *       <flow:executor id="registry" registry-ref="registry" repository-type="continuation" >
 *           <flow:execution-listeners>
 *               <flow:listener ref="listener1" />
 *               <flow:listener ref="listener2" ref="*" />
 *               <flow:listener ref="listener3" ref="flow1, flow2, flow3" />
 *           <flow:execution-listeners />
 *       </flow:executor>
 * 
 * 
 * 
 * Using the registry tag you can configure an
 * {@link org.springframework.webflow.engine.builder.xml.XmlFlowRegistryFactoryBean} to create a registry for use by any
 * number of executors. The registry tag supports in-line flow definition locations.
 * 
 * 
 *       <flow:registry id="registry">
 *           <flow:location path="/path/to/flow.xml" />
 *           <flow:location path="/path/with/wildcards/*-flow.xml" />
 *       </flow:registry>
 * 
 * 
 * @author Ben Hale
 */
public class WebFlowConfigNamespaceHandler extends NamespaceHandlerSupport {

	public void init() {
		registerBeanDefinitionParser("execution-attributes", new ExecutionAttributesBeanDefinitionParser());
		registerBeanDefinitionParser("execution-listeners", new ExecutionListenersBeanDefinitionParser());
		registerBeanDefinitionParser("executor", new ExecutorBeanDefinitionParser());
		registerBeanDefinitionParser("registry", new RegistryBeanDefinitionParser());
	}
}