Class TDbfFile

Description
Hierarchy
Fields
Methods
Properties

Unit

dbf_dbffile

Declaration

type TDbfFile = class(TPagedFile)

Description

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Hierarchy

Overview

Fields

Protected FMdxFile: TIndexFile;
Protected FMemoFile: TMemoFile;
Protected FFieldDefs: TDbfFieldDefs;
Protected FIndexNames: TStringList;
Protected FIndexFiles: TList;
Protected FDbfVersion: TXBaseVersion;
Protected FPrevBuffer: TRecordBuffer;
Protected FDefaultBuffer: TRecordBuffer;
Protected FRecordBufferSize: Integer;
Protected FLockUserLen: DWORD;
Protected FFileCodePage: Cardinal;
Protected FUseCodePage: Cardinal;
Protected FFileLangId: Byte;
Protected FCountUse: Integer;
Protected FCurIndex: Integer;
Protected FForceClose: Boolean;
Protected FLockField: TDbfFieldDef;
Protected FNullField: TDbfFieldDef;
Protected FAutoIncPresent: Boolean;
Protected FCopyDateTimeAsString: Boolean;
Protected FDateTimeHandling: TDateTimeHandling;
Protected FOnLocaleError: TDbfLocaleErrorEvent;
Protected FOnIndexMissing: TDbfIndexMissingEvent;

Methods

Protected function HasBlob: Boolean;
Protected function GetMemoExt: string;
Protected function GetLanguageId: Integer;
Protected function GetLanguageStr: string;
Protected procedure ConstructFieldDefs;
Protected procedure InitDefaultBuffer;
Protected procedure UpdateNullField(Buffer: Pointer; AFieldDef: TDbfFieldDef; Action: TUpdateNullField);
Protected procedure WriteLockInfo(Buffer: TRecordBuffer);
Public constructor Create;
Public destructor Destroy; override;
Public procedure Open;
Public procedure Close;
Public procedure Zap;
Public procedure FinishCreate(AFieldDefs: TDbfFieldDefs; MemoSize: Integer);
Public function GetIndexByName(AIndexName: string): TIndexFile;
Public procedure SetRecordSize(NewSize: Integer); override;
Public procedure TryExclusive; override;
Public procedure EndExclusive; override;
Public procedure OpenIndex(IndexName, IndexField: string; CreateIndex: Boolean; Options: TIndexOptions);
Public function DeleteIndex(const AIndexName: string): Boolean;
Public procedure CloseIndex(AIndexName: string);
Public procedure RepageIndex(AIndexFile: string);
Public procedure CompactIndex(AIndexFile: string);
Public function Insert(Buffer: TRecordBuffer): integer;
Public procedure WriteHeader; override;
Public procedure ApplyAutoIncToBuffer(DestBuf: TRecordBuffer);
Public procedure FastPackTable;
Public procedure RestructureTable(DbfFieldDefs: TDbfFieldDefs; Pack: Boolean);
Public procedure Rename(DestFileName: string; NewIndexFileNames: TStrings; DeleteFiles: boolean);
Public function GetFieldInfo(FieldName: string): TDbfFieldDef;
Public function GetFieldData(Column: Integer; DataType: TFieldType; Src,Dst: Pointer; NativeFormat: boolean): Boolean;
Public function GetFieldDataFromDef(AFieldDef: TDbfFieldDef; DataType: TFieldType; Src, Dst: Pointer; NativeFormat: boolean): Boolean;
Public procedure SetFieldData(Column: Integer; DataType: TFieldType; Src,Dst: Pointer; NativeFormat: boolean);
Public procedure InitRecord(DestBuf: TRecordBuffer);
Public procedure PackIndex(lIndexFile: TIndexFile; AIndexName: string);
Public procedure RegenerateIndexes;
Public procedure LockRecord(RecNo: Integer; Buffer: TRecordBuffer);
Public procedure UnlockRecord(RecNo: Integer; Buffer: TRecordBuffer);
Public procedure RecordDeleted(RecNo: Integer; Buffer: TRecordBuffer);
Public procedure RecordRecalled(RecNo: Integer; Buffer: TRecordBuffer);

Properties

Public property MemoFile: TMemoFile read FMemoFile;
Public property FieldDefs: TDbfFieldDefs read FFieldDefs;
Public property IndexNames: TStringList read FIndexNames;
Public property IndexFiles: TList read FIndexFiles;
Public property MdxFile: TIndexFile read FMdxFile;
Public property LanguageId: Integer read GetLanguageId;
Public property LanguageStr: string read GetLanguageStr;
Public property FileCodePage: Cardinal read FFileCodePage;
Public property UseCodePage: Cardinal read FUseCodePage write FUseCodePage;
Public property FileLangId: Byte read FFileLangId write FFileLangId;
Public property DbfVersion: TXBaseVersion read FDbfVersion write FDbfVersion;
Public property PrevBuffer: TRecordBuffer read FPrevBuffer;
Public property ForceClose: Boolean read FForceClose;
Public property CopyDateTimeAsString: Boolean read FCopyDateTimeAsString write FCopyDateTimeAsString;
Public property DateTimeHandling: TDateTimeHandling read FDateTimeHandling write FDateTimeHandling;
Public property OnIndexMissing: TDbfIndexMissingEvent read FOnIndexMissing write FOnIndexMissing;
Public property OnLocaleError: TDbfLocaleErrorEvent read FOnLocaleError write FOnLocaleError;

Description

Fields

Protected FMdxFile: TIndexFile;

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Protected FMemoFile: TMemoFile;

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Protected FFieldDefs: TDbfFieldDefs;

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Protected FIndexNames: TStringList;

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Protected FIndexFiles: TList;

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Protected FDbfVersion: TXBaseVersion;

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Protected FPrevBuffer: TRecordBuffer;

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Protected FDefaultBuffer: TRecordBuffer;

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Protected FRecordBufferSize: Integer;

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Protected FLockUserLen: DWORD;

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Protected FFileCodePage: Cardinal;

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Protected FUseCodePage: Cardinal;

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Protected FFileLangId: Byte;

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Protected FCountUse: Integer;

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Protected FCurIndex: Integer;

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Protected FForceClose: Boolean;

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Protected FLockField: TDbfFieldDef;

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Protected FNullField: TDbfFieldDef;

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Protected FAutoIncPresent: Boolean;

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Protected FCopyDateTimeAsString: Boolean;

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Protected FDateTimeHandling: TDateTimeHandling;

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Protected FOnLocaleError: TDbfLocaleErrorEvent;

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Protected FOnIndexMissing: TDbfIndexMissingEvent;

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Methods

Protected function HasBlob: Boolean;

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Protected function GetMemoExt: string;

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Protected function GetLanguageId: Integer;

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Protected function GetLanguageStr: string;

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Protected procedure ConstructFieldDefs;

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Protected procedure InitDefaultBuffer;

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Protected procedure UpdateNullField(Buffer: Pointer; AFieldDef: TDbfFieldDef; Action: TUpdateNullField);

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Protected procedure WriteLockInfo(Buffer: TRecordBuffer);

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Public constructor Create;

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Public destructor Destroy; override;

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Public procedure Open;

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Public procedure Close;

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Public procedure Zap;

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Public procedure FinishCreate(AFieldDefs: TDbfFieldDefs; MemoSize: Integer);

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Public function GetIndexByName(AIndexName: string): TIndexFile;

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Public procedure SetRecordSize(NewSize: Integer); override;

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Public procedure TryExclusive; override;

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Public procedure EndExclusive; override;

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Public procedure OpenIndex(IndexName, IndexField: string; CreateIndex: Boolean; Options: TIndexOptions);

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Public function DeleteIndex(const AIndexName: string): Boolean;

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Public procedure CloseIndex(AIndexName: string);

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Public procedure RepageIndex(AIndexFile: string);

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Public procedure CompactIndex(AIndexFile: string);

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Public function Insert(Buffer: TRecordBuffer): integer;

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Public procedure WriteHeader; override;

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Public procedure ApplyAutoIncToBuffer(DestBuf: TRecordBuffer);

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Public procedure FastPackTable;

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Public procedure RestructureTable(DbfFieldDefs: TDbfFieldDefs; Pack: Boolean);

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Public procedure Rename(DestFileName: string; NewIndexFileNames: TStrings; DeleteFiles: boolean);

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Public function GetFieldInfo(FieldName: string): TDbfFieldDef;

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Public function GetFieldData(Column: Integer; DataType: TFieldType; Src,Dst: Pointer; NativeFormat: boolean): Boolean;

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Public function GetFieldDataFromDef(AFieldDef: TDbfFieldDef; DataType: TFieldType; Src, Dst: Pointer; NativeFormat: boolean): Boolean;

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Public procedure SetFieldData(Column: Integer; DataType: TFieldType; Src,Dst: Pointer; NativeFormat: boolean);

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Public procedure InitRecord(DestBuf: TRecordBuffer);

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Public procedure PackIndex(lIndexFile: TIndexFile; AIndexName: string);

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Public procedure RegenerateIndexes;

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Public procedure LockRecord(RecNo: Integer; Buffer: TRecordBuffer);

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Public procedure UnlockRecord(RecNo: Integer; Buffer: TRecordBuffer);

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Public procedure RecordDeleted(RecNo: Integer; Buffer: TRecordBuffer);

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Public procedure RecordRecalled(RecNo: Integer; Buffer: TRecordBuffer);

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Properties

Public property MemoFile: TMemoFile read FMemoFile;

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Public property FieldDefs: TDbfFieldDefs read FFieldDefs;

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Public property IndexNames: TStringList read FIndexNames;

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Public property IndexFiles: TList read FIndexFiles;

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Public property MdxFile: TIndexFile read FMdxFile;

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Public property LanguageId: Integer read GetLanguageId;

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Public property LanguageStr: string read GetLanguageStr;

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Public property FileCodePage: Cardinal read FFileCodePage;

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Public property UseCodePage: Cardinal read FUseCodePage write FUseCodePage;

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Public property FileLangId: Byte read FFileLangId write FFileLangId;

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Public property DbfVersion: TXBaseVersion read FDbfVersion write FDbfVersion;

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Public property PrevBuffer: TRecordBuffer read FPrevBuffer;

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Public property ForceClose: Boolean read FForceClose;

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Public property CopyDateTimeAsString: Boolean read FCopyDateTimeAsString write FCopyDateTimeAsString;

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Public property DateTimeHandling: TDateTimeHandling read FDateTimeHandling write FDateTimeHandling;

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Public property OnIndexMissing: TDbfIndexMissingEvent read FOnIndexMissing write FOnIndexMissing;

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Public property OnLocaleError: TDbfLocaleErrorEvent read FOnLocaleError write FOnLocaleError;

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