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A strong typed high performance Java Template engine with .Net Razor like syntax

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/* 
 * Copyright (C) 2013 The Rythm Engine project
 * Gelin Luo 
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 com.greenlaw110.rythm.internal;

import java.util.regex.Pattern;

/**
 * IJavaExtension defines meta structure used by rythm to "extend" an expression.
 * 
 * This enable rythm to provide the functionality of Java extension concept used in playframework
 * http://www.playframework.org/documentation/1.2.4/templates#extensions
 * 

 * User: luog
 * Date: 21/02/12
 * Time: 6:41 AM
 * To change this template use File | Settings | File Templates.
 */
public interface IJavaExtension {
    String extend(String s, String signature);

    Pattern pattern1();

    Pattern pattern2();

    String methodName();
    
    static class VoidParameterExtension implements IJavaExtension {
        private String methodName = null;
        private String fullMethodName = null;
        private Pattern pattern1 = null;
        private Pattern pattern2 = null;
        private boolean requireTemplate = false;

        public VoidParameterExtension(String waiveName, String name, String fullName) {
            this(waiveName, name, fullName, false);
        }

        public VoidParameterExtension(String waiveName, String name, String fullName, boolean requireTemplate) {
            methodName = name;
            fullMethodName = fullName;
            pattern1 = Pattern.compile(String.format(".*(?