##### Coverage Report - org.webmacro.engine.VoidMacro

Classes in this File | Line Coverage | Branch Coverage | Complexity
VoidMacro |
50% | 2/4
N/A | N/A
| 1.5;1.5

1 |  |
     /*
2 |  |
      * VoidMacro.java
3 |  |
      *
4 |  |
      * Created on March 26, 2001, 12:33 AM
5 |  |
      */
6 |  |
7 |  |
     package org.webmacro.engine;
8 |  |
9 |  |
     import org.webmacro.Context;
10 |  |
     import org.webmacro.FastWriter;
11 |  |
     import org.webmacro.Macro;
12 |  |
     import org.webmacro.PropertyException;
13 |  |
14 |  |
     import java.io.IOException;
15 |  |
16 |  |
     /**
17 |  |
      * VoidMacro doesn't output data to the output stream, but will log a
18 |  |
      * debug message (if debugging is turned on) when either of it's
19 |  |
      * methods are called.<p>
20 |  |
      *
21 |  |
      * In addition, since this is a special-case Macro, and really only
22 |  |
      * used by the PropertyOperator and Variable classes, we have a public
23 |  |
      * static field called <code>instance</code> that will return an
24 |  |
      * already created instance of this guy.  Since it doesn't do
25 |  |
      * anything, we really only need 1 of them around.
26 |  |
      *
27 |  |
      * @author  e_ridge
28 |  |
      * @since 0.96
29 |  |
      */
30 | 2 |
     public final class VoidMacro implements Macro
31 |  |
     {
32 |  |
33 | 2 |
         public static final VoidMacro instance = new VoidMacro();
34 |  |
35 |  |
         public void write (FastWriter out, Context context)
36 |  |
                 throws PropertyException, IOException
37 |  |
         {
38 |  |
             // Don't do anything.
39 | 0 |
         }
40 |  |
41 |  |
         /**
42 |  |
          * Always throws a new <code>PropertyException.VoidValueException</code>
43 |  |
          */
44 |  |
         public Object evaluate (Context context)
45 |  |
                 throws PropertyException
46 |  |
         {
47 |  |
             // We throw VoidValueException
48 | 0 |
             throw new PropertyException.VoidValueException();
49 |  |
         }
50 |  |
51 |  |
     }