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git-svn-id: svn://fileserver/activex/AVS/Sources/TeamlabOffice/trunk/ServerComponents@64116 954022d7-b5bf-4e40-9824-e11837661b57
36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
#pragma once
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#include "BinSmartPointers.h"
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#include <Logic/GlobalWorkbookInfo.h>
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namespace XLS
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{
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// The purpose of the writer is to avoid seeking back through IStream when, for example,
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// we have write an offset of a record that would appear in processing much later.
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// For example this is necessary in 'Index' record that shall reference DBCell records
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// appearing later in the stream. So, this class will increase performance much
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class CFStreamCacheWriter
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{
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public:
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CFStreamCacheWriter(CFStreamPtr stream, GlobalWorkbookInfoPtr global_info);
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~CFStreamCacheWriter();
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// Saves the next CFRecord to the CFStream or caches for later saving. Returns whether the record was saved to file or stored for later saving
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bool storeNextRecord(CFRecordPtr record);
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GlobalWorkbookInfoPtr getGlobalWorkbookInfo() { return global_info_; }
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private:
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// Actual transporting record to the CFStream and then to IStream
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const size_t writeToStream(const size_t num_of_records_min_necessary);
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private:
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CFStreamPtr stream_;
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CFRecordPtrList records_cache;
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GlobalWorkbookInfoPtr global_info_;
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};
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} // namespace XLS
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