Unit msebufdataset

Description

 

Overview

Classes, Interfaces, Objects and Records

Name	Description
Record fieldinfo_0ty
Record fieldinfobasety
Record fieldinfoextty
Record fieldinfoty
Record fielddataty
Record blobcacheinfoty
Record blobinfoty
Record blobstreamfixinfoty
Record blobstreaminfoty
Record recheaderty
Record intheaderty
Record intrecordty
Record bookmarkdataty
Record bufbookmarkty
Record dsheaderty
Record dsrecordty
Record indexty
Record reclogheader32ty
Record reclogheaderty
Record updatelogheader32ty
Record updatelogheaderty
Record logbufferheader32ty
Record logbufferheaderty
Class tbufstreamwriter
Class tbufstreamreader
Class tblobbuffer
Class tblobcopy
Class tindexfield
Class tindexfields
Record indexfieldinfoty
Class tlocalindex
Class tlocalindexes
Record recupdateinfoty
Record recupdatebufferty
Interface iblobchache
Class ecurrentvalueaccess
Class eapplyerror
Record lookupdataty
Record lookupfieldinfoty
Class tmsebufdataset

Functions and Procedures

function getfieldflag(nullmask: pbyte; const x: integer): boolean;

procedure setfieldflag(nullmask: pbyte; const x: integer);

procedure clearfieldflag(nullmask: pbyte; const x: integer);

procedure alignfieldpos(var avalue: integer);

Types

pfieldinfobasety = ˆfieldinfobasety;

fieldinfoarty = array of fieldinfoty;

blobcacheinfoarty = array of blobcacheinfoty;

pblobinfoty = ˆblobinfoty;

blobinfoarty = array of blobinfoty;

pblobinfoarty = ˆblobinfoarty;

precheaderty = ˆrecheaderty;

pprecheaderty = ˆprecheaderty;

pintrecordty = ˆintrecordty;

ppintrecordty = ˆpintrecordty;

pbookmarkdataty = ˆbookmarkdataty;

pbufbookmarkty = ˆbufbookmarkty;

pdsrecordty = ˆdsrecordty;

pindexty = ˆindexty;

logflagty = (...);

updatekindty = (...);

resolverresponsety = (...);

resolverresponsesty = set of resolverresponsety;

updateerroreventty = procedure( const sender: tmsebufdataset; var e: edatabaseerror; const updatekind: tupdatekind; var response: resolverresponsesty) of object;

indexfieldoptionty = (...);

indexfieldoptionsty = set of indexfieldoptionty;

localindexoptionty = (...);

localindexoptionsty = set of localindexoptionty;

intrecordpoaty = array[0..0] of pintrecordty;

pintrecordpoaty = ˆintrecordpoaty;

indexfieldinfoarty = array of indexfieldinfoty;

indexcomparefuncty = function (l,r: pintrecordty; const alastindex: integer; const apartialstring: boolean): integer of object;

bufdataseteventty = procedure(const sender: tmsebufdataset) of object;

recupdateflagty = (...);

recupdateflagsty = set of recupdateflagty;

recupdateinfoarty = array of recupdateinfoty;

precupdatebufferty = ˆrecupdatebufferty;

recupdatebufferarty = array of recupdatebufferty;

bufdatasetstatety = (...);

bufdatasetstatesty = set of bufdatasetstatety;

bufdatasetstate1ty = (...);

bufdatasetstates1ty = set of bufdatasetstate1ty;

internalcalcfieldseventty = procedure(const sender: tmsebufdataset; const fetching: boolean) of object;

getbmvalueeventty = procedure (const afield: tfield; const bm: bookmarkdataty; var adata: lookupdataty) of object;

lookupfieldinfoarty = array of lookupfieldinfoty;

filterediteventty = procedure(const sender: tmsebufdataset; const akind: filtereditkindty) of object;

bufdatasetarty = array of tmsebufdataset;

bufdatasetoptionty = (...);

bufdatasetoptionsty = set of bufdatasetoptionty;

Constants

defaultpacketrecords = -1;

integerindexfields = [ftsmallint,ftinteger,ftword,ftboolean];

largeintindexfields = [ftlargeint];

floatindexfields = [ftfloat,ftdatetime,ftdate,fttime];

currencyindexfields = [ftcurrency,ftbcd];

stringindexfields = [ftstring,ftfixedchar];

guidindexfields = [ftguid];

indexfieldtypes = integerindexfields+largeintindexfields+floatindexfields+ currencyindexfields+stringindexfields+guidindexfields;

dsbuffieldkinds = [fkcalculated,fklookup];

bufferfieldkinds = [fkdata];

dscheckfilter = ord(high(tdatasetstate)) + 1;

bufstreambuffersize = 4096;

intheadersize = sizeof(intheaderty);

dsheadersize = sizeof(dsheaderty);

defaultbufdatasetoptions = [];

oldbdsoptions = [ bdo_postsavepoint,bdo_deletesavepoint, bdo_cancelupdateonerror,bdo_cancelupdatesonerror, bdo_cancelupdateondeleteerror, bdo_editonapplyerror, bdo_restoreupdateonsavepointrollback, bdo_noapply,bdo_autoapply, bdo_autocommitret,bdo_autocommit, bdo_refreshafterapply,bdo_recnoapplyrefresh, bdo_refreshtransaction, bdo_notransactionrefresh,bdo_recnotransactionrefresh, bdo_noprepare, bdo_cacheblobs, bdo_offline, bdo_local ];

Description

Functions and Procedures

function getfieldflag(nullmask: pbyte; const x: integer): boolean;

procedure setfieldflag(nullmask: pbyte; const x: integer);

procedure clearfieldflag(nullmask: pbyte; const x: integer);

procedure alignfieldpos(var avalue: integer);

Types

pfieldinfobasety = ˆfieldinfobasety;

fieldinfoarty = array of fieldinfoty;

blobcacheinfoarty = array of blobcacheinfoty;

pblobinfoty = ˆblobinfoty;

blobinfoarty = array of blobinfoty;

pblobinfoarty = ˆblobinfoarty;

precheaderty = ˆrecheaderty;

pprecheaderty = ˆprecheaderty;

pintrecordty = ˆintrecordty;

ppintrecordty = ˆpintrecordty;

pbookmarkdataty = ˆbookmarkdataty;

pbufbookmarkty = ˆbufbookmarkty;

pdsrecordty = ˆdsrecordty;

pindexty = ˆindexty;

logflagty = (...);

Values lf_end lf_rec lf_update lf_cancel lf_apply lf_drop

updatekindty = (...);

Values uk_modify = ord(ukmodify) uk_insert = ord(ukinsert) uk_delete = ord(ukdelete) uk_modifyinupdate

resolverresponsety = (...);

Values rr_abort rr_quiet rr_revert rr_again rr_applied rr_skipped

resolverresponsesty = set of resolverresponsety;

updateerroreventty = procedure( const sender: tmsebufdataset; var e: edatabaseerror; const updatekind: tupdatekind; var response: resolverresponsesty) of object;

indexfieldoptionty = (...);

Values ifo_desc ifo_caseinsensitive ifo_natural

indexfieldoptionsty = set of indexfieldoptionty;

localindexoptionty = (...);

Values lio_desc lio_default lio_quicksort

localindexoptionsty = set of localindexoptionty;

intrecordpoaty = array[0..0] of pintrecordty;

pintrecordpoaty = ˆintrecordpoaty;

indexfieldinfoarty = array of indexfieldinfoty;

indexcomparefuncty = function (l,r: pintrecordty; const alastindex: integer; const apartialstring: boolean): integer of object;

bufdataseteventty = procedure(const sender: tmsebufdataset) of object;

recupdateflagty = (...);

Values ruf_applied ruf_error ruf_append ruf_inupdate

recupdateflagsty = set of recupdateflagty;

recupdateinfoarty = array of recupdateinfoty;

precupdatebufferty = ˆrecupdatebufferty;

recupdatebufferarty = array of recupdatebufferty;

bufdatasetstatety = (...);

Values bs_opening bs_loading bs_fetching bs_displaydata bs_applying bs_recapplying bs_curvaluemodified bs_curvalueset bs_connected bs_hasindex bs_fetchall bs_initinternalcalc bs_blobsfetched bs_blobscached bs_blobssorted bs_hasvalidindex bs_editing bs_append bs_internalcalc bs_startedit bs_utf8 bs_hasfilter bs_visiblerecordcountvalid bs_refreshing bs_restorerecno bs_idle bs_noautoapply bs_refreshinsert bs_refreshupdate bs_refreshinsertindex bs_refreshupdateindex bs_inserttoupdate

bufdatasetstatesty = set of bufdatasetstatety;

bufdatasetstate1ty = (...);

Values bs1_needsresync bs1_inupdatechanged bs1_lookupnotifying bs1_lookupnotifypending bs1_posting bs1_recordupdating bs1_deferdeleterecupdatebuffer bs1_restoreupdate bs1_onidleregistered

bufdatasetstates1ty = set of bufdatasetstate1ty;

internalcalcfieldseventty = procedure(const sender: tmsebufdataset; const fetching: boolean) of object;

getbmvalueeventty = procedure (const afield: tfield; const bm: bookmarkdataty; var adata: lookupdataty) of object;

lookupfieldinfoarty = array of lookupfieldinfoty;

filterediteventty = procedure(const sender: tmsebufdataset; const akind: filtereditkindty) of object;

bufdatasetarty = array of tmsebufdataset;

bufdatasetoptionty = (...);

Values bdo_postsavepoint bdo_deletesavepoint bdo_cancelupdateonerror bdo_cancelupdatesonerror bdo_cancelupdateondeleteerror bdo_editonapplyerror bdo_restoreupdateonsavepointrollback bdo_rollbackonupdateerror bdo_noapply bdo_autoapply bdo_autoapplyexceptions bdo_autocommitret bdo_autocommit bdo_refreshafterapply bdo_recnoapplyrefresh bdo_refreshtransaction bdo_notransactionrefresh bdo_recnotransactionrefresh bdo_checkbrowsemodebylookupchange bdo_noprepare bdo_cacheblobs bdo_offline bdo_local

bufdatasetoptionsty = set of bufdatasetoptionty;

Constants

defaultpacketrecords = -1;

integerindexfields = [ftsmallint,ftinteger,ftword,ftboolean];

largeintindexfields = [ftlargeint];

floatindexfields = [ftfloat,ftdatetime,ftdate,fttime];

currencyindexfields = [ftcurrency,ftbcd];

stringindexfields = [ftstring,ftfixedchar];

guidindexfields = [ftguid];

indexfieldtypes = integerindexfields+largeintindexfields+floatindexfields+ currencyindexfields+stringindexfields+guidindexfields;

dsbuffieldkinds = [fkcalculated,fklookup];

bufferfieldkinds = [fkdata];

dscheckfilter = ord(high(tdatasetstate)) + 1;

bufstreambuffersize = 4096;

intheadersize = sizeof(intheaderty);

dsheadersize = sizeof(dsheaderty);

defaultbufdatasetoptions = [];

oldbdsoptions = [ bdo_postsavepoint,bdo_deletesavepoint, bdo_cancelupdateonerror,bdo_cancelupdatesonerror, bdo_cancelupdateondeleteerror, bdo_editonapplyerror, bdo_restoreupdateonsavepointrollback, bdo_noapply,bdo_autoapply, bdo_autocommitret,bdo_autocommit, bdo_refreshafterapply,bdo_recnoapplyrefresh, bdo_refreshtransaction, bdo_notransactionrefresh,bdo_recnotransactionrefresh, bdo_noprepare, bdo_cacheblobs, bdo_offline, bdo_local ];

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