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1   /*
2    * $Id$
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  package org.apache.struts.chain.commands;
22  
23  import org.apache.commons.chain.Command;
24  import org.apache.struts.chain.contexts.ActionContext;
25  
26  /**
27   * Marks a commons-chain {@code Command} which expects to operate upon a Struts
28   * {@code ActionContext}.
29   */
30  public interface ActionCommand extends Command<ActionContext> {
31  
32      /**
33       * @param actionContext The {@code Context} for the current request
34       *
35       * @return TRUE if processing should halt
36       *
37       * @throws Exception On any error
38       */
39      boolean execute(ActionContext actionContext)
40          throws Exception;
41  }