| /* |
| * 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 org.apache.el.lang; |
| |
| import java.lang.reflect.Method; |
| |
| import javax.el.FunctionMapper; |
| |
| /** |
| * @author Jacob Hookom [jacob@hookom.net] |
| */ |
| public class FunctionMapperFactory extends FunctionMapper { |
| |
| protected FunctionMapperImpl memento = null; |
| protected final FunctionMapper target; |
| |
| public FunctionMapperFactory(FunctionMapper mapper) { |
| if (mapper == null) { |
| throw new NullPointerException("FunctionMapper target cannot be null"); |
| } |
| this.target = mapper; |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see javax.el.FunctionMapper#resolveFunction(java.lang.String, java.lang.String) |
| */ |
| @Override |
| public Method resolveFunction(String prefix, String localName) { |
| if (this.memento == null) { |
| this.memento = new FunctionMapperImpl(); |
| } |
| Method m = this.target.resolveFunction(prefix, localName); |
| if (m != null) { |
| this.memento.mapFunction(prefix, localName, m); |
| } |
| return m; |
| } |
| |
| |
| @Override |
| public void mapFunction(String prefix, String localName, Method method) { |
| if (this.memento == null) { |
| this.memento = new FunctionMapperImpl(); |
| } |
| memento.mapFunction(prefix, localName, method); |
| } |
| |
| |
| public FunctionMapper create() { |
| return this.memento; |
| } |
| |
| } |