KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > vladium > emma > ant > StringValue


1 /* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved.
2  *
3  * This program and the accompanying materials are made available under
4  * the terms of the Common Public License v1.0 which accompanies this distribution,
5  * and is available at http://www.eclipse.org/legal/cpl-v10.html
6  *
7  * $Id: StringValue.java,v 1.2 2004/05/20 02:28:06 vlad_r Exp $
8  */
9 package com.vladium.emma.ant;
10
11 import org.apache.tools.ant.Task;
12
13 // ----------------------------------------------------------------------------
14 /**
15  * @author Vlad Roubtsov, (C) 2003
16  */
17 public
18 abstract class StringValue
19 {
20     // public: ................................................................
21
22     
23     public void appendValue (final String JavaDoc value, final String JavaDoc separator)
24     {
25         if ((value != null) && (value.length () > 0))
26         {
27             if (m_value == null)
28             {
29                 m_value = new StringBuffer JavaDoc (value);
30             }
31             else
32             {
33                 m_value.append (separator);
34                 m_value.append (value); // no trailing separator kept
35 }
36         }
37     }
38                 
39     public String JavaDoc getValue ()
40     {
41         return m_value != null ? m_value.toString () : null;
42     }
43     
44     // protected: .............................................................
45
46     
47     protected StringValue (final Task task)
48     {
49         if (task == null) throw new IllegalArgumentException JavaDoc ("null input: task");
50         
51         m_task = task;
52     }
53
54
55     protected final Task m_task;
56     
57     // package: ...............................................................
58
59     // private: ...............................................................
60
61     
62     private StringBuffer JavaDoc m_value;
63
64 } // end of class
65 // ----------------------------------------------------------------------------
Popular Tags