ObjectReader.h

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00001 /*
00002  * Copyright (c) 2004 CSIRO ICT Centre
00003  *
00004  * $Id: ObjectReader.h 587 2004-12-03 15:06:33Z nch $
00005  */
00006 
00007 /*
00008  * A reader for an object.
00009  *
00010  * Default behaviour is to do nothing.
00011  *
00012  * This class defines the interface ObjectReaders must support.
00013  */
00014 
00015 #ifndef OBJECTREADER_DEFINED
00016 #define OBJECTREADER_DEFINED
00017 
00018 #include "Object.h"
00019 
00020 
00021 class ObjectReader
00022 {
00023   public:
00024     virtual ~ObjectReader() {};
00025 
00026     virtual void open()=0;
00027     virtual void reopen()=0;
00028     virtual void close()=0;
00029     virtual Object * read()=0;
00030 
00031   protected:
00032     ObjectReader() {};
00033 
00034   private:
00035     ObjectReader(ObjectReader const & other);
00036     ObjectReader & operator=(ObjectReader const &);
00037 };
00038 
00039 #endif // ifndef OBJECTREADER_DEFINED
00040 
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