A ResultListener proxy that invokes callbacks onto the AWT thread.

git-svn-id: https://samskivert.googlecode.com/svn/trunk@1462 6335cc39-0255-0410-8fd6-9bcaacd3b74c
2004-07-12 12:29:58 +00:00
parent af764c5aa9
commit 3015617d03
1 changed files with 47 additions and 0 deletions
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+//
+// $Id$
+
+package com.samskivert.swing;
+
+import java.awt.EventQueue;
+
+import com.samskivert.util.ResultListener;
+
+/**
+ * Dispatches a {@link ResultListener}'s callbacks on the AWT thread
+ * regardless of what thread on which they were originally dispatched.
+ */
+public class AWTResultListener implements ResultListener
+{
+    /**
+     * Creates an AWT result listener that will dispatch results to the
+     * supplied target.
+     */
+    public AWTResultListener (ResultListener target)
+    {
+        _target = target;
+    }
+
+    // documentation inherited from interface
+    public void requestCompleted (final Object result)
+    {
+        EventQueue.invokeLater(new Runnable() {
+            public void run () {
+                _target.requestCompleted(result);
+            }
+        });
+    }
+
+    // documentation inherited from interface
+    public void requestFailed (final Exception cause)
+    {
+        EventQueue.invokeLater(new Runnable() {
+            public void run () {
+                _target.requestFailed(cause);
+            }
+        });
+    }
+
+    /** The result listener for which we are proxying. */
+    protected ResultListener _target;
+}