Oracle Coherence for C++ API
Release 3.6.0.0
E15728-01

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# coherence/util/Versionable.hpp

    00001 /*
    00002 * Versionable.hpp
    00003 *
    00004 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
    00005 *
    00006 * Oracle is a registered trademarks of Oracle Corporation and/or its
    00007 * affiliates.
    00008 *
    00009 * This software is the confidential and proprietary information of Oracle
    00010 * Corporation. You shall not disclose such confidential and proprietary
    00011 * information and shall use it only in accordance with the terms of the
    00012 * license agreement you entered into with Oracle.
    00013 *
    00014 * This notice may not be removed or altered.
    00015 */
    00016 #ifndef COH_VERSIONABLE_HPP
    00017 #define COH_VERSIONABLE_HPP
    00018
    00019 #include "coherence/lang.ns"
    00020
    00021 COH_OPEN_NAMESPACE2(coherence,util)
    00022
    00023
    00024 /**
    00025 * An interface for versionable data.
    00026 *
    00027 * @author tb  2008.05.08
    00028 */
    00029 class COH_EXPORT Versionable
    00030     : public interface_spec<Versionable>
    00031     {
    00032     // ----- Versionable interface ------------------------------------------
    00033
    00034     public:
    00035         /**
    00036         * Get the version indicator for this object. The version indicator
    00037         * should be an immutable object or one treated as an immutable, which
    00038         * is to say that after the version is incremented, the previous version's
    00039         * indicator reference will never be returned again.
    00040         *
    00041         * @return a non-null version value that implements the Comparable
    00042         *         interface
    00043         */
    00044         virtual Comparable::View getVersionIndicator() const = 0;
    00045
    00046         /**
    00047         * Update the version to the next logical version indicator.
    00048         *
    00049         * @throws UnsupportedOperationException  if the object is immutable or
    00050         *         if the object does not know how to increment its own version
    00051         *         indicator
    00052         */
    00053         virtual void incrementVersion() = 0;
    00054     };
    00055
    00056 COH_CLOSE_NAMESPACE2
    00057
    00058 #endif // COH_VERSIONABLE_HPP
    00059

Copyright © 2000, 2010, Oracle and/or its affiliates. All rights reserved.