| author | Jaroslav Tulach <jtulach@netbeans.org> |
| Sat, 14 Jun 2008 09:56:12 +0200 | |
| changeset 132 | 3bc4c54f4bcc |
| parent 128 | 8ef997796d0a |
| child 153 | b5cbb797ec0a |
| permissions | -rw-r--r-- |
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/* |
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* Sun Public License Notice |
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* |
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* The contents of this file are subject to the Sun Public License |
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* Version 1.0 (the "License"). You may not use this file except in |
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* compliance with the License. A copy of the License is available at |
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* http://www.sun.com/ |
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* |
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* The Original Code is NetBeans. The Initial Developer of the Original |
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* Code is Jaroslav Tulach. Portions Copyright 2007 Jaroslav Tulach. |
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* All Rights Reserved. |
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*/ |
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|
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package implpkg; |
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|
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import apipkg.Item; |
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import javax.swing.event.ChangeListener; |
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|
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/** |
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* |
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* @author Jaroslav Tulach |
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*/ |
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// BEGIN: design.less.friend.Accessor |
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public abstract class Accessor {
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private static volatile Accessor DEFAULT; |
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public static Accessor getDefault() {
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Accessor a = DEFAULT; |
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if (a != null) {
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return a; |
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} |
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|
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try {
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Class.forName( |
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Item.class.getName(), true, Item.class.getClassLoader() |
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); |
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} catch (Exception ex) {
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ex.printStackTrace(); |
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} |
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|
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return DEFAULT; |
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} |
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|
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public static void setDefault(Accessor accessor) {
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if (DEFAULT != null) {
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throw new IllegalStateException(); |
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} |
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DEFAULT = accessor; |
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} |
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|
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public Accessor() {
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} |
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|
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protected abstract Item newItem(); |
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protected abstract void addChangeListener(Item item, ChangeListener l); |
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} |
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// END: design.less.friend.Accessor |