intial check-in

1 files changed, 69 insertions, 0 deletions

diff --git a/java/src/IceInternal/EventHandler.java b/java/src/IceInternal/EventHandler.java
new file mode 100644
index 00000000000..e9c9f3d352c
--- /dev/null
+++ b/java/src/IceInternal/EventHandler.java
@@ -0,0 +1,69 @@
+// **********************************************************************
+//
+// Copyright (c) 2001
+// MutableRealms, Inc.
+// Huntsville, AL, USA
+//
+// All Rights Reserved
+//
+// **********************************************************************
+
+package IceInternal;
+
+abstract class EventHandler
+{
+    //
+    // Returns true if the event handler belongs to the server-side of
+    // an application. Client-side otherwise.
+    //
+    abstract boolean server();
+
+    //
+    // Return true if read() must be called before calling message().
+    //
+    abstract boolean readable();
+
+    //
+    // Read data via the event handler. May only be called if
+    // readable() returns true.
+    //
+    abstract void read(Ice.Stream is);
+
+    //
+    // A complete message has been received.
+    //
+    abstract void message(Ice.Stream stream);
+
+    //
+    // Signal exception during reading or unmarshaling.
+    //
+    abstract void exception(Ice.LocalException ex);
+
+    //
+    // Will be called if the event handler is finally
+    // unregistered. (Calling unregister() does not unregister
+    // immediately.)
+    //
+    abstract void finished();
+    
+    //
+    // Try to destroy the event handler. Returns false if the event
+    // handler cannot be destroyed because it is in use, or true
+    // otherwise.
+    //
+    abstract boolean tryDestroy();
+
+    protected
+    EventHandler(Instance instance)
+    {
+        _instance = instance;
+        _stream = new StreamI(instance);
+    }
+
+    protected Instance _instance;
+
+    //
+    // The _stream data member is for use by ThreadPool only
+    //
+    Ice.Stream _stream;
+}