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Diffstat (limited to 'src/include/xbfilter.h')
| -rwxr-xr-x | src/include/xbfilter.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/include/xbfilter.h b/src/include/xbfilter.h new file mode 100755 index 0000000..635d117 --- /dev/null +++ b/src/include/xbfilter.h @@ -0,0 +1,78 @@ +/* xbfilter.h + +XBase64 Software Library + +Copyright (c) 1997,2003,2014,2022 Gary A Kunkel + +The xb64 software library is covered under the terms of the GPL Version 3, 2007 license. + +Email Contact: + + XDB-devel@lists.sourceforge.net + XDB-users@lists.sourceforge.net + +This class manages the user data area (UDA) + +*/ + + +#ifndef __XB_XBFILTER_H__ +#define __XB_XBFILTER_H__ + +#ifdef CMAKE_COMPILER_IS_GNUCC +#pragma interface +#endif + + +#ifdef XB_FILTER_SUPPORT + + +namespace xb{ + +//#ifdef XB_INDEX_SUPPORT +//class XBDLLEXPORT xbIx; +//#endif // XB_INDEX_SUPPORT + + +class XBDLLEXPORT xbFilter { + + public: + xbFilter( xbDbf *dbf ); + ~xbFilter(); + xbInt16 Set( xbString &sFilterExpression ); + xbInt16 Set( const char *sFilterExpression ); + xbInt16 GetFirstRecord( xbInt16 iOpt = 1 ); + xbInt16 GetNextRecord ( xbInt16 iOpt = 1 ); + xbInt16 GetPrevRecord ( xbInt16 iOpt = 1 ); + xbInt16 GetLastRecord ( xbInt16 iOpt = 1 ); + void SetLimit( xbInt32 ulLimit ); + xbInt32 GetLimit() const; + void ResetQryCnt(); + xbInt32 GetQryCnt() const; + + #ifdef XB_INDEX_SUPPORT + xbInt16 GetFirstRecordIx( xbInt16 iOpt = 1 ); + xbInt16 GetNextRecordIx ( xbInt16 iOpt = 1 ); + xbInt16 GetPrevRecordIx ( xbInt16 iOpt = 1 ); + xbInt16 GetLastRecordIx ( xbInt16 iOpt = 1 ); + #endif // XB_INDEX_SUPPORT + + + private: +// xbXBase *xbase; + xbDbf *dbf; + xbExp *exp; + + xbInt32 lLimit; // max number rows returned + xbInt32 lCurQryCnt; // current count of rows returned, neg# is moving from bottom to top + // pos# is moving from top to bottom + #ifdef XB_INDEX_SUPPORT + xbIx *pIx; // if index is set, the class uses the index tag, otherwise table + void *vpTag; + #endif // XB_INDEX_SUPPORT + + +}; +} /* namespace */ +#endif /* XB_FILTER_SUPPORT */ +#endif /* __XBFILTER_H__ */
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