new trunk (base for 1.5)

windows build only

Foundation/include/Poco/AbstractDelegate.h

@@ -0,0 +1,92 @@
+//
+// AbstractDelegate.h
+//
+// $Id: //poco/1.4/Foundation/include/Poco/AbstractDelegate.h#4 $
+//
+// Library: Foundation
+// Package: Events
+// Module:  AbstractDelegate
+//
+// Implementation of the AbstractDelegate template.
+//
+// Copyright (c) 2006-2011, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#ifndef Foundation_AbstractDelegate_INCLUDED
+#define Foundation_AbstractDelegate_INCLUDED
+
+
+#include "Poco/Foundation.h"
+
+
+namespace Poco {
+
+
+template <class TArgs> 
+class AbstractDelegate
+	/// Base class for Delegate and Expire.
+{
+public:
+	AbstractDelegate()
+	{
+	}
+
+	AbstractDelegate(const AbstractDelegate& del)
+	{
+	}
+
+	virtual ~AbstractDelegate() 
+	{
+	}
+
+	virtual bool notify(const void* sender, TArgs& arguments) = 0;
+		/// Invokes the delegate's callback function.
+		/// Returns true if successful, or false if the delegate
+		/// has been disabled or has expired.
+
+	virtual bool equals(const AbstractDelegate& other) const = 0;
+		/// Compares the AbstractDelegate with the other one for equality.
+
+	virtual AbstractDelegate* clone() const = 0;
+		/// Returns a deep copy of the AbstractDelegate.
+
+	virtual void disable() = 0;
+		/// Disables the delegate, which is done prior to removal.
+		
+	virtual const AbstractDelegate* unwrap() const
+		/// Returns the unwrapped delegate. Must be overridden by decorators
+		/// like Expire.
+	{
+		return this;
+	}
+};
+
+
+} // namespace Poco
+
+
+#endif // Foundation_AbstractDelegate_INCLUDED