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| ///////////////////////////////////////////////////////////////////////////
// //
// Copyright (c) 2015 by Charta Software B.V. //
// All rights reserved //
// //
// Version: 1.7.0.83525 //
// Web site: https://pascal.chartasoftware.com/ //
// //
// This code and information are provided "as is" without warranty of //
// any kind. Dissemination of this information or reproduction of //
// this material is strictly forbidden unless prior written permission //
// is obtained from Charta Software B.V.. //
// //
///////////////////////////////////////////////////////////////////////////
unit Sql.Result;
interface
uses
Boolean,
Color.Rgb,
DateTime,
DateTime.Calendar.Gregorian.Date,
DateTime.Calendar.Gregorian.Instant,
DateTime.Calendar.Gregorian.Time,
Decimal,
FloatingPoint._64,
FloatingPoint._64.Interval,
Geometry._2d,
Geometry._2d.FloatingPoint64.Point,
Integer,
Integer._32,
Memory.Block,
NamedFile,
Text,
Type_,
Type_.Structured,
Type_.Structured.Value,
Uri,
Uuid,
Value,
Xml.Value;
type
TSqlQueryResultMethod = (sqrmStoreResult, sqrmUseResult);
TSqlResult = class(TObject)
public
function GetRowCount(): TInteger32; virtual; abstract;
function GetType(): TRecordType; virtual; abstract;
function FetchRow(): TBoolean; virtual; abstract;
function ReadNull(): TBoolean; virtual; abstract;
function ReadText(): TText; virtual; abstract;
function ReadInteger(): TInteger; virtual; abstract;
function ReadDecimal(): TDecimal; virtual; abstract;
function ReadFloatingPoint(): TFloatingPoint64; virtual; abstract;
function ReadBoolean(): TBoolean; virtual; abstract;
function ReadFloatingPoint64Point(): T2dFloatingPoint64Point; virtual; abstract;
function ReadFloatingPoint64Interval(): TFloatingPoint64Interval; virtual; abstract;
function ReadColor(): TRgbColor; virtual; abstract;
function ReadUri(): TUri; virtual; abstract;
function ReadUuid(): TUuid; virtual; abstract;
function ReadByteBlock(): TMemoryBlock; virtual; abstract;
function ReadNamedFile(): TNamedFile; virtual; abstract;
function ReadXmlValue(): TXmlValue; virtual; abstract;
function Read2dGeometry(): T2dGeometry; virtual; abstract;
function ReadRecordSet(): TRecordSet; virtual; abstract;
function ReadType(): TType; virtual; abstract;
function ReadDateTime(): TDateTime; virtual; deprecated 'Use ReadInstant() instead'; abstract;
function ReadDate(): TGregorianDate; virtual; abstract;
function ReadTime(): TGregorianTime; virtual; abstract;
function ReadInstant(): TGregorianInstant; virtual; abstract;
function ReadValue(): TValue; virtual; abstract;
function Old_ReadValue(Type_: TType): TValue; deprecated;
end;
implementation
uses
Boolean.Type_,
Boolean.Value,
Currency.Type_,
DateTime.Type_,
Decimal.Type_,
Decimal.Value,
Exception,
Integer.Type_,
Integer.Value,
SerialIdentifier.Type_,
Text.Type_,
Text.Value,
Type_.System,
Uuid.Type_,
Uuid.Value,
Value.Unknown;
{ TSqlResult }
function TSqlResult.Old_ReadValue(Type_: TType): TValue;
begin
if ReadNull() then
Result := TUnknown.Create()
else if Type_ is TBooleanType then
Result := TBooleanValue.Create(ReadBoolean())
else if (Type_ is TIntegerType) or (Type_ is TSerialIdentifierType) then
Result := TIntegerValue.Create(ReadInteger())
else if Type_ is TTextType then
Result := TTextValue.Create(ReadText())
else if Type_ is TUuidType then
Result := TUuidValue.Create(ReadUuid())
else if Type_ is TDateType then
Result := ReadDate()
else if Type_ is TCurrencyType then
Result := TDecimalValue.Create(ReadDecimal()) // TODO: Currently there is no TCurrency support and TDecimals are used.
else if Type_ is TDecimalType then
Result := TDecimalValue.Create(ReadDecimal())
else if Type_ is TTimeOfDayType then
Result := ReadTime()
else if Type_ is TDateTimeType then
Result := ReadInstant()
else
raise EException.Create('Unsupported type: ' + Type_.ToText());
end;
end.
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