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.hivemind.conditional; 016 017import org.apache.hivemind.util.Defense; 018 019/** 020 * Evaluator for a fully qualified class name. 021 * 022 * @author Howard M. Lewis Ship 023 * @since 1.1 024 */ 025public class ClassNameEvaluator implements Evaluator 026{ 027 private String _className; 028 029 public ClassNameEvaluator(String className) 030 { 031 Defense.notNull(className, "className"); 032 033 _className = className; 034 } 035 036 // For testing 037 038 String getClassName() 039 { 040 return _className; 041 } 042 043 public boolean evaluate(EvaluationContext context, Node node) 044 { 045 return context.doesClassExist(_className); 046 } 047 048}