Statistic.hxx
上传用户:sy_wanhua
上传日期:2013-07-25
资源大小:3048k
文件大小:5k
- #if !defined(STATISTIC_DOT_HXX)
- #define STATISTIC_DOT_HXX
- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const Statistic_hxx_Version =
- "$Id: Statistic.hxx,v 1.3 2001/02/02 21:36:15 icahoon Exp $";
- #include "Writer.hxx"
- #include "StatisticsDb.hxx"
- #include "Data.hxx"
- /** Infrastructure common to VOCAL.<br><br>
- */
- namespace Vocal
- {
- /** Infrastructure in VOCAL to measuring, recording and reporting
- * statistics.<br><br>
- */
- namespace Statistics
- {
- /** An abstract statistic class.<br><br>
- *
- * The statistic is tightly coupled with the StatisticsDb. The database
- * key associated with this statistic's label are allocated by the database.
- * The statistic also know how to record itself in the database.
- *
- * The statistic is a type of composite class, where it may represent
- * a single measurement, or it may represent a combination of measurements.
- * Typically a single measurement is recorded by the user, and then the
- * database holds a combined statistic.
- */
- class Statistic : public Vocal::IO::Writer
- {
- protected:
- /** Create the statistic given the associated database, and the
- * label. Statistics with different labels will be assigned
- * different keys.
- */
- Statistic(StatisticsDb & db, const Data & label);
- /** Create the statistic given the associated database, and the
- * previously allocated key.
- */
- Statistic(StatisticsDb & db, StatisticsDbKey);
- /** Copy constructor. All derived statistics should have full
- * copy semantics.
- */
- Statistic(const Statistic &);
- /** Assignment operator. All derived statistics should have full
- * copy semantics.
- */
- const Statistic & operator=(const Statistic &);
- public:
-
- /** Virtual destructor.
- */
- virtual ~Statistic();
-
- /** Record this individual statistic to the associated database.
- */
- void record();
-
-
- /** Database key accessor.
- */
- StatisticsDbKey key() const;
- /** Label name accessor.
- */
- const Data & name() const;
-
- /** Associate database accessor.
- */
- const StatisticsDb & db() const;
-
- /** This will combine the two statistics.
- */
- virtual void combine(const Statistic &) = 0;
- /** Create a copy of this statistic.
- */
- virtual Statistic * copy() const = 0;
- protected:
-
- StatisticsDb * myDb;
-
- private:
- StatisticsDbKey myKey;
- };
- } // namespace Statistics
- } // namespace Vocal
- #endif // !defined(STATISTIC_DOT_HXX)