Adapter class for easy instantiation of Task implementations.

git-svn-id: https://samskivert.googlecode.com/svn/trunk@639 6335cc39-0255-0410-8fd6-9bcaacd3b74c
2002-03-04 00:12:23 +00:00
parent 88502457e8
commit 32752a74f6
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+//
+// $Id: TaskAdapter.java,v 1.1 2002/03/04 00:12:23 mdb Exp $
+//
+// samskivert library - useful routines for java programs
+// Copyright (C) 2001 Michael Bayne
+// 
+// This library is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+package com.samskivert.swing.util;
+
+/**
+ * A helper class for easily instantiating {@link Task} instances.
+ */
+public class TaskAdapter implements Task
+{
+    /**
+     * Always returns null by default. Override this method to implement
+     * the desired functionality.
+     *
+     * @see Task#invoke
+     */
+    public Object invoke () throws Exception
+    {
+        return null;
+    }
+
+    /**
+     * Always returns false by default. Override this method to implement
+     * the desired functionality.
+     *
+     * @see Task#abort
+     */
+    public boolean abort ()
+    {
+        return false;
+    }
+}