lifecyclefactoryimpl.java

来自「一个使用struts+hibernate+spring开发的完的网站源代码。」· Java 代码 · 共 71 行

/*
 * Copyright 2004 The Apache Software Foundation.
 * 
 * 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.apache.myfaces.lifecycle;

import javax.faces.FacesException;
import javax.faces.lifecycle.Lifecycle;
import javax.faces.lifecycle.LifecycleFactory;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * @author Manfred Geiler (latest modification by $Author: matze $)
 * @author Anton Koinov
 * @version $Revision: 1.10 $ $Date: 2004/10/13 11:51:00 $
 */
public class LifecycleFactoryImpl
        extends LifecycleFactory
{
    private final Map _lifecycles = new HashMap();

    public LifecycleFactoryImpl()
    {
        addLifecycle(LifecycleFactory.DEFAULT_LIFECYCLE, new LifecycleImpl());
    }

    public void addLifecycle(String id, Lifecycle lifecycle)
    {
        synchronized (_lifecycles)
        {
            if (_lifecycles.get(id) != null)
            {
                throw new IllegalArgumentException("Lifecycle with id '" + id + "' already exists.");
            }
            _lifecycles.put(id, lifecycle);
        }
    }

    public Lifecycle getLifecycle(String id)
            throws FacesException
    {
        synchronized (_lifecycles)
        {
            Lifecycle lifecycle = (Lifecycle)_lifecycles.get(id);
            if (lifecycle == null)
            {
                throw new IllegalArgumentException("Unknown lifecycle '" + id + "'.");
            }
            return lifecycle;
        }
    }

    public Iterator getLifecycleIds()
    {
        return _lifecycles.keySet().iterator();
    }
}