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/data/refman/pasoursint/CMSSW_5_3_3/src/CondCore/ORA/src/RelationalBuffer.h

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00001 #ifndef INCLUDE_ORA_RELATIONALBUFFER_H
00002 #define INCLUDE_ORA_RELATIONALBUFFER_H
00003 
00004 //
00005 #include <string>
00006 #include <vector>
00007 #include <boost/shared_ptr.hpp>
00008 //
00009 #include <memory>
00010 
00011 namespace coral {
00012   class ISchema;
00013   class Blob;
00014 }
00015 
00016 namespace ora {
00017 
00018   class IRelationalOperation;
00019   class InsertOperation;
00020   class BulkInsertOperation;
00021   class MultiRecordInsertOperation;
00022   class UpdateOperation;
00023   class DeleteOperation;
00024 
00025   class RelationalBuffer {
00026 
00027     public:
00028     
00029     explicit RelationalBuffer( coral::ISchema& schema );
00030 
00031     virtual ~RelationalBuffer();
00032 
00033     InsertOperation& newInsert( const std::string& tableName );
00034     BulkInsertOperation& newBulkInsert( const std::string& tableName );
00035     MultiRecordInsertOperation& newMultiRecordInsert( const std::string& tableName );
00036     UpdateOperation& newUpdate( const std::string& tableName, bool addToResult=false );
00037     DeleteOperation& newDelete( const std::string& tableName, bool addToResult=false );
00038 
00039     RelationalBuffer& addVolatileBuffer();
00040 
00041     void storeBlob( boost::shared_ptr<coral::Blob> blob );
00042 
00043     void clear();
00044     bool flush();
00045 
00046     private:
00047     
00048     coral::ISchema& m_schema;
00049     std::vector< std::pair<IRelationalOperation*, bool> > m_operations;
00050     std::vector<RelationalBuffer*> m_volatileBuffers;
00051     std::vector< boost::shared_ptr<coral::Blob> > m_blobBuffer;
00052   };
00053   
00054 }
00055 #endif
00056 
00057 
00058