001// Copyright 2004, 2005 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry.valid; 016 017/** 018 * Implementations of this interface will provide pattern utility services. 019 * 020 * @author Harish Krishnaswamy 021 * @since 3.0 022 */ 023public interface PatternDelegate 024{ 025 /** 026 * Answers the question whether the input string fulfills the pattern string provided. 027 * 028 * @param patternString The pattern that the input string is compared against. 029 * @param input The string under test. 030 * @return Returns true if the pattern exists in the input string; returns false otherwise. 031 */ 032 public boolean contains(String patternString, String input); 033 034 /** 035 * Returns the escaped sequence of characters representing the pattern string provided. 036 * 037 * @param patternString The raw sequence of characters that represent the pattern. 038 * @return The escaped sequence of characters that represent the pattern. 039 */ 040 public String getEscapedPatternString(String patternString); 041}