1 /*
2 * Copyright 2002-2004 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5 * use this file except in compliance with the License. You may obtain a copy of
6 * the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations under
14 * the License.
15 */
16 package org.springframework.richclient.command;
17
18 /**
19 * Implementations of this interface can be assigned to an action command to
20 * intercept command execution.
21 *
22 * @author Keith Donald, Mathias Broekelmann
23 */
24 public interface ActionCommandInterceptor {
25
26 /**
27 * Will be called before the action command is executed.
28 *
29 * @param command
30 * the action command which gets executed
31 * @return If false the action command and any subsequent action command
32 * interceptor will not get executed. If true the action command
33 * will be executed.
34 */
35 public boolean preExecution(ActionCommand command);
36
37 /**
38 * Will be called after successfull execution of an action command.
39 *
40 * @param command
41 * the action command which was executed.
42 */
43 public void postExecution(ActionCommand command);
44 }