01: package org.apache.turbine.modules;
02:
03: /*
04: * Licensed to the Apache Software Foundation (ASF) under one
05: * or more contributor license agreements. See the NOTICE file
06: * distributed with this work for additional information
07: * regarding copyright ownership. The ASF licenses this file
08: * to you under the Apache License, Version 2.0 (the
09: * "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:
22: import org.apache.turbine.util.RunData;
23:
24: /**
25: * Generic Action class.
26: *
27: * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a>
28: * @version $Id: Action.java 534527 2007-05-02 16:10:59Z tv $
29: */
30: public abstract class Action extends Assembler {
31: /**
32: * A subclass must override this method to perform itself. The
33: * Action can also set the screen that is associated with RunData.
34: *
35: * @param data Turbine information.
36: * @exception Exception a generic exception.
37: */
38: public abstract void doPerform(RunData data) throws Exception;
39:
40: /**
41: * Subclasses can override this method to add additional
42: * functionality. This method is protected to force clients to
43: * use ActionLoader to perform an Action.
44: *
45: * @param data Turbine information.
46: * @exception Exception a generic exception.
47: */
48: protected void perform(RunData data) throws Exception {
49: doPerform(data);
50: }
51: }
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