1 files changed, 56 insertions, 0 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/widgets/NullPostExecution.java b/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/widgets/NullPostExecution.java
new file mode 100644
index 0000000000..1f5edba3ef
--- /dev/null
+++ b/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/widgets/NullPostExecution.java
@@ -0,0 +1,56 @@
+/*******************************************************************************
+ * 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
+	}
+}