001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.apache.commons.proxy2.interceptor.matcher.invocation;
019
020import org.apache.commons.proxy2.Invocation;
021import org.apache.commons.proxy2.interceptor.matcher.InvocationMatcher;
022
023public class ReturnTypeMatcher implements InvocationMatcher
024{
025    //******************************************************************************************************************
026    // Fields
027    //******************************************************************************************************************
028
029    private final boolean exactMatch;
030    private final Class<?> returnType;
031
032    //******************************************************************************************************************
033    // Constructors
034    //******************************************************************************************************************
035
036    public ReturnTypeMatcher(Class<?> returnType)
037    {
038        this(returnType, false);
039    }
040
041    public ReturnTypeMatcher(Class<?> returnType, boolean exactMatch)
042    {
043        this.returnType = returnType;
044        this.exactMatch = exactMatch;
045    }
046
047    //******************************************************************************************************************
048    // InvocationMatcher Implementation
049    //******************************************************************************************************************
050
051    @Override
052    public boolean matches(Invocation invocation)
053    {
054        return exactMatch ? returnType.equals(invocation.getMethod().getReturnType()) : returnType
055                .isAssignableFrom(invocation.getMethod().getReturnType());
056    }
057}