001/* $Id$ */
002/*
003 * Licensed to the Apache Software Foundation (ASF) under one or more
004 * contributor license agreements.  See the NOTICE file distributed with
005 * this work for additional information regarding copyright ownership.
006 * The ASF licenses this file to You under the Apache License, Version 2.0
007 * (the "License"); you may not use this file except in compliance with
008 * the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017*/
018package org.apache.commons.el;
019
020import java.lang.reflect.Method;
021import java.util.List;
022
023import javax.servlet.jsp.el.ELException;
024import javax.servlet.jsp.el.FunctionMapper;
025
026/**
027 * A subclass of <code>FunctionInvocation</code> which is bound
028 * to a particular <code>Method</code>.  A bound function does
029 * not require a <code>FunctionMapper</code> to be evaluated.
030 * 
031 * @author Jamie Taylor
032 */
033public class BoundFunctionInvocation extends FunctionInvocation {
034    private final Method method;
035    
036    /**
037     * @param functionName
038     * @param argumentList
039     */
040    public BoundFunctionInvocation(
041            final Method method,
042            final String functionName, 
043            final List argumentList) 
044    {
045        super(functionName, argumentList);
046        this.method = method;
047    }
048
049    /**
050     * Returns the <code>Method</code>supplied to the constructor.
051     * @param functions unused
052     */
053    protected Method resolveFunction(FunctionMapper functions)
054            throws ELException {
055        return method;
056    }
057}