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Ajax4jsf is an open source extension to the JavaServer Faces standard that adds AJAX capability to JSF applications without requiring the writing of any JavaScript.

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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.ajax4jsf.framework.util.javascript;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * @author shura (latest modification by $Author: sergeysmirnov $)
 * @version $Revision: 1.1 $ $Date: 2006/04/28 02:04:06 $
 *
 */
public class JSFunctionDefinition extends ScriptStringBase implements ScriptString
{


    
    private List parameters = new ArrayList();
    
    private StringBuffer body = new StringBuffer();

    public JSFunctionDefinition(){
    }

    public JSFunctionDefinition( List parameters)
    {

        this.parameters = parameters;
    }

    /**
     * @param body
     * @param parameters
     */
    public JSFunctionDefinition( Object parameter)
    {
        this.parameters.add(parameter);
    }


    public JSFunctionDefinition addParameter(Object parameter)
    {
        this.parameters.add(parameter);
        return this;
    }
    
    public JSFunctionDefinition addToBody(Object body)
    {
        this.body.append(body);
        return this;
    }
    /* (non-Javadoc)
     * @see org.ajax4jsf.components.renderkit.scriptutils.ScriptString#appendScript(java.lang.StringBuffer)
     */
    public void appendScript(StringBuffer functionString)
    {
        functionString.append("function(");
        boolean first = true;
        for (Iterator param = parameters.iterator(); param.hasNext();)
        {
            Object element =  param.next();
            if(!first){
                functionString.append(',');
            }
            functionString.append(element.toString());
            first = false;
        }
        functionString.append("){").append(body).append("}");
    }

}