C++ Client API Reference for Oracle Coherence: coherence/io/pof/EvolvablePortableObject.hpp Source File

00001 /*
00002  * Copyright (c) 2000, 2020, Oracle and/or its affiliates.
00003  *
00004  * Licensed under the Universal Permissive License v 1.0 as shown at
00005  * http://oss.oracle.com/licenses/upl.
00006  */
00007 #ifndef COH_EVOLVABLE_PORTABLE_OBJECT_HPP
00008 #define COH_EVOLVABLE_PORTABLE_OBJECT_HPP
00009 
00010 #include "coherence/lang.ns"
00011 
00012 #include "coherence/io/Evolvable.hpp"
00013 #include "coherence/io/pof/PortableObject.hpp"
00014 
00015 COH_OPEN_NAMESPACE3(coherence,io,pof)
00016 
00017 using coherence::io::Evolvable;
00018 
00019 
00020 /**
00021 * Extension of the PortableObject interface that supports forwards-
00022 * and backwards-compatibility of its POF serialized state.
00023 *
00024 * Note: For performance reasons in C++ it is generally preferable to
00025 * use implements<PortableObject, Evolvable> over
00026 * implements<EvolvablePortableObject>, as the internal cast<> operator is
00027 * better optimized for the former case. It is for this reason that this class
00028 * is not prefixed by COH_EXPORT as it is not used internally within Coherence.
00029 *
00030 * @author jh  2008.01.14
00031 */
00032 class EvolvablePortableObject
00033     : public interface_spec<EvolvablePortableObject,
00034         implements<PortableObject, Evolvable> >
00035     {
00036     };
00037 
00038 COH_CLOSE_NAMESPACE3
00039 
00040 #endif // COH_EVOLVABLE_PORTABLE_OBJECT_HPP