1 /***
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions are
4 * met :
5 *
6 * . Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 *
9 * . Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * . The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $Id: AbstractDirectionGroup.java,v 1.2 2005/09/09 22:12:34 mat007 Exp $
29 */
30
31 package jtge.util.grid.directiongroup;
32
33 import java.util.Iterator;
34 import java.util.Vector;
35 import jtge.util.grid.direction.IDirection;
36
37 /***
38 * Provides direction groups common behaviours.
39 *
40 * @author Jean-Laurent Fabre de Morlhon
41 * @version $Id: AbstractDirectionGroup.java,v 1.2 2005/09/09 22:12:34 mat007 Exp $
42 */
43 public abstract class AbstractDirectionGroup implements IDirectionGroup
44 {
45 private final Vector directions;
46
47 /***
48 * Create an abstract direction group.
49 */
50 protected AbstractDirectionGroup()
51 {
52 directions = new Vector();
53 }
54
55 /***
56 * Add a direction to the group.
57 *
58 * @param direction the direction to add
59 */
60 protected final void add( final IDirection direction )
61 {
62 directions.add( direction );
63 }
64
65 /***
66 * {@inheritDoc}
67 */
68 public final Iterator iterator()
69 {
70 return directions.iterator();
71 }
72
73 /***
74 * {@inheritDoc}
75 */
76 public final String[] getNames()
77 {
78 final int max = directions.size();
79 final String[] result = new String[max];
80 for( int i = 0; i < max; i++ )
81 result[i] = ((IDirection)directions.get( i )).getName();
82 return result;
83 }
84
85 /***
86 * {@inheritDoc}
87 */
88 public final String[] getShortNames()
89 {
90 final int max = directions.size();
91 final String[] result = new String[max];
92 for( int i = 0; i < max; i++ )
93 result[i] = ((IDirection)directions.get( i )).getShortName();
94 return result;
95 }
96 }