| /* |
| * Copyright 1999-2004 The Apache Software Foundation |
| * |
| * 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.apache.commons.chain.impl; |
| |
| |
| import org.apache.commons.chain.Chain; |
| import org.apache.commons.chain.Command; |
| import org.apache.commons.chain.Context; |
| |
| |
| /** |
| * <p>Implementation of {@link Command} that logs its identifier and |
| * and attempts to add a new {@link Command} to the {@link Chain}. This |
| * should cause an IllegalStateException if the {@link Chain} implementation |
| * subclasses <code>ChainBase</code>.</p> |
| * |
| * @author Craig R. McClanahan |
| * @version $Revision$ $Date$ |
| */ |
| |
| public class AddingCommand extends NonDelegatingCommand { |
| |
| |
| // ------------------------------------------------------------ Constructor |
| |
| |
| public AddingCommand() { |
| this("", null); |
| } |
| |
| // Construct an instance that will log the specified identifier |
| public AddingCommand(String id, Chain parent) { |
| super(id); |
| this.parent = parent; |
| } |
| |
| |
| // The parent Chain |
| private Chain parent = null; |
| |
| |
| // -------------------------------------------------------- Command Methods |
| |
| |
| // Execution method for this Command |
| public boolean execute(Context context, Chain chain) throws Exception { |
| |
| super.execute(context); |
| parent.addCommand(new NonDelegatingCommand("NEW")); // Should cause ISE |
| return (true); |
| |
| } |
| |
| |
| } |