blob: 1f5edba3ef4622aa1e6e29dcf776fdca875a570e (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*******************************************************************************
* Copyright (c) 2008 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.ui.internal.widgets;
import org.eclipse.jface.dialogs.Dialog;
/**
* A <code>null</code> instance of <code>PostExecution</code>.
*
* @version 2.0
* @since 1.0
*/
public final class NullPostExecution implements PostExecution<Dialog> {
/**
* The singleton instance of this <code>NullPostExecution</code>.
*/
private static PostExecution<Dialog> INSTANCE;
/**
* Creates a new <code>NullPostExecution</code>.
*/
private NullPostExecution() {
super();
}
/**
* Returns the singleton instance of this <code>NullPostExecution</code>.
*
* @param <T> The dialog where this <code>PostExecution</code> will be used
* @return The singleton instance with the proper type
*/
@SuppressWarnings("unchecked")
public static synchronized <T extends Dialog> PostExecution<T> instance() {
if (INSTANCE == null) {
INSTANCE = new NullPostExecution();
}
return (PostExecution<T>) INSTANCE;
}
/*
* (non-Javadoc)
*/
public void execute(Dialog dialog) {
// Nothing to do
}
}
|
