1 files changed, 47 insertions, 0 deletions
diff --git a/java/src/Ice/AsyncCallback.java b/java/src/Ice/AsyncCallback.java
new file mode 100644
index 00000000000..a5bb1a17a13
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+++ b/java/src/Ice/AsyncCallback.java
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+// **********************************************************************
+//
+// Copyright (c) 2003-2009 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+package Ice;
+
+/**
+ * An application can optionally supply an instance of this class in an
+ * asynchronous invocation. The application must create a subclass and
+ * implement the completed method.
+ **/
+public abstract class AsyncCallback extends Callback
+{
+    /**
+     * Invoked when the invocation completes. The subclass should
+     * call the matching <code>end_OP</code> method on the proxy and
+     * must be prepared to handle exceptions.
+     *
+     * @param r The asynchronous result object returned by the <code>begin_OP</code> method.
+     **/
+    public abstract void completed(AsyncResult r);
+
+    /**
+     * Invoked when the Ice run time has passed the outgoing message
+     * buffer to the transport.
+     *
+     * @param r The asynchronous result object returned by the <code>begin_OP</code> method.
+     **/
+    public void sent(AsyncResult r)
+    {
+    }
+
+    public final void __completed(AsyncResult r)
+    {
+        completed(r);
+    }
+
+    public final void __sent(AsyncResult r)
+    {
+        sent(r);
+    }
+}