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The MyFaces Commons Subproject provides base classes for usage in both the MyFaces implementation and the MyFaces Tomahawk components. This is also a general set of utility classes for usage in your JSF projects independent of the implementation you might be deciding upon.

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/*
 * 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.el;

import javax.faces.component.StateHolder;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.MethodBinding;
import javax.faces.el.MethodNotFoundException;

/**
 * @author Manfred Geiler (latest modification by $Author: tomsp $)
 * @version $Revision: 332567 $ $Date: 2005-11-11 14:36:10 +0000 (Fri, 11 Nov 2005) $
 */
public class SimpleActionMethodBinding
        extends MethodBinding
        implements StateHolder
{
    //private static final Log log = LogFactory.getLog(SimpleActionMethodBinding.class);

    private String _outcome;

    public SimpleActionMethodBinding(String outcome)
    {
        _outcome = outcome;
    }

    public Object invoke(FacesContext facescontext, Object aobj[]) throws EvaluationException, MethodNotFoundException
    {
        return _outcome;
    }

    public Class getType(FacesContext facescontext) throws MethodNotFoundException
    {
        return String.class;
    }


    //~ StateHolder support ----------------------------------------------------------------------------

    private boolean _transient = false;

    /**
     * Empty constructor, so that new instances can be created when restoring state.
     */
    public SimpleActionMethodBinding()
    {
        _outcome = null;
    }

    public Object saveState(FacesContext facescontext)
    {
        return _outcome;
    }

    public void restoreState(FacesContext facescontext, Object obj)
    {
        _outcome = (String)obj;
    }

    public boolean isTransient()
    {
        return _transient;
    }

    public void setTransient(boolean flag)
    {
        _transient = flag;
    }

    public String toString()
    {
        return _outcome;
    }
}