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Groovy example source code file (ClassExtender.java)
The Groovy ClassExtender.java source code/* * Copyright 2003-2007 the original author or authors. * * Licensed 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 org.codehaus.groovy.runtime; import groovy.lang.Closure; import java.util.HashMap; import java.util.Map; /** * A helper class used by the runtime to allow Groovy classes to be extended at runtime * * @author <a href="mailto:james@coredevelopers.net">James Strachan * @version $Revision: 6778 $ */ public class ClassExtender { private Map variables; private Map methods; public synchronized Object get(String name) { if (variables != null) { return variables.get(name); } return null; } public synchronized void set(String name, Object value) { if (variables == null) { variables = createMap(); } variables.put(name, value); } public synchronized void remove(String name) { if (variables != null) { variables.remove(name); } } public void call(String name, Object params) { Closure closure = null; synchronized (this) { if (methods != null) { closure = (Closure) methods.get(name); } } if (closure != null) { closure.call(params); } /* else { throw DoesNotUnderstandException(); } */ } public synchronized void addMethod(String name, Closure closure) { if (methods == null) { methods = createMap(); } methods.put(name, methods); } public synchronized void removeMethod(String name) { if (methods != null) { methods.remove(name); } } protected Map createMap() { return new HashMap(); } } Other Groovy examples (source code examples)Here is a short list of links related to this Groovy ClassExtender.java source code file: |
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