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* Easy access functions in TJSONObject

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git-svn-id: trunk@21447 -
This commit is contained in:
michael 2012-05-31 21:06:22 +00:00
parent 3ae5fc8c04
commit f855753a78
1 changed files with 147 additions and 0 deletions
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147
packages/fcl-json/src/fpjson.pp
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@ -394,6 +394,15 @@ Type
procedure Iterate(Iterator : TJSONObjectIterator; Data: TObject); procedure Iterate(Iterator : TJSONObjectIterator; Data: TObject);
function IndexOf(Item: TJSONData): Integer; function IndexOf(Item: TJSONData): Integer;
Function IndexOfName(const AName: TJSONStringType; CaseInsensitive : Boolean = False): Integer; Function IndexOfName(const AName: TJSONStringType; CaseInsensitive : Boolean = False): Integer;
Function Find(Const AName : String) : TJSONData; overload;
Function Find(Const AName : String; AType : TJSONType) : TJSONData; overload;
Function GetFloat(Const AName : String; ADefault : TJSONFloat) : TJSONFloat;
Function GetInteger(Const AName : String; ADefault : Integer) : Integer;
Function GetInt64(Const AName : String; ADefault : Int64) : Int64;
Function GetBoolean(Const AName : String; ADefault : Boolean) : Boolean;
Function GetString(Const AName : String; ADefault : TJSONStringType) : TJSONStringTYpe;
Function GetArray(Const AName : String; ADefault : TJSONArray) : TJSONArray;
Function GetObject(Const AName : String; ADefault : TJSONObject) : TJSONObject;
// Manipulate // Manipulate
Procedure Clear; override; Procedure Clear; override;
function Add(const AName: TJSONStringType; AValue: TJSONData): Integer; overload; function Add(const AName: TJSONStringType; AValue: TJSONData): Integer; overload;
@ -405,8 +414,10 @@ Type
function Add(const AName: TJSONStringType): Integer; overload; function Add(const AName: TJSONStringType): Integer; overload;
function Add(const AName: TJSONStringType; AValue : TJSONArray): Integer; overload; function Add(const AName: TJSONStringType; AValue : TJSONArray): Integer; overload;
procedure Delete(Index : Integer); procedure Delete(Index : Integer);
procedure Delete(Const AName : string);
procedure Remove(Item : TJSONData); procedure Remove(Item : TJSONData);
Function Extract(Index : Integer) : TJSONData; Function Extract(Index : Integer) : TJSONData;
Function Extract(Const AName : string) : TJSONData;
// Easy access properties. // Easy access properties.
property Names[Index : Integer] : TJSONStringType read GetNameOf; property Names[Index : Integer] : TJSONStringType read GetNameOf;
@ -2013,6 +2024,17 @@ begin
FHash.Delete(Index); FHash.Delete(Index);
end; end;
procedure TJSONObject.Delete(Const AName: string);
Var
I : Integer;
begin
I:=IndexOfName(AName);
if (I<>-1) then
Delete(I);
end;
procedure TJSONObject.Remove(Item: TJSONData); procedure TJSONObject.Remove(Item: TJSONData);
begin begin
FHash.Remove(Item); FHash.Remove(Item);
@ -2024,5 +2046,130 @@ begin
FHash.Extract(Result); FHash.Extract(Result);
end; end;
function TJSONObject.Extract(const AName: string): TJSONData;
Var
I : Integer;
begin
I:=IndexOfName(AName);
if (I<>-1) then
Result:=Extract(I)
else
Result:=Nil
end;
function TJSONObject.GetFloat(const AName: String; ADefault: TJSONFloat
): TJSONFloat;
Var
D : TJSONData;
begin
D:=Find(AName,jtNumber);
If D<>Nil then
Result:=D.AsFloat
else
Result:=ADefault;
end;
function TJSONObject.GetInteger(const AName: String; ADefault: Integer
): Integer;
Var
D : TJSONData;
begin
D:=Find(AName,jtNumber);
If D<>Nil then
Result:=D.AsInteger
else
Result:=ADefault;
end;
function TJSONObject.GetInt64(const AName: String; ADefault: Int64): Int64;
Var
D : TJSONData;
begin
D:=Find(AName,jtNumber);
If D<>Nil then
Result:=D.AsInt64
else
Result:=ADefault;
end;
function TJSONObject.GetBoolean(const AName: String; ADefault: Boolean
): Boolean;
Var
D : TJSONData;
begin
D:=Find(AName,jtBoolean);
If D<>Nil then
Result:=D.AsBoolean
else
Result:=ADefault;
end;
function TJSONObject.GetString(const AName: String; ADefault: TJSONStringType
): TJSONStringType;
Var
D : TJSONData;
begin
D:=Find(AName,jtBoolean);
If (D<>Nil) then
Result:=D.AsString
else
Result:=ADefault;
end;
function TJSONObject.GetArray(const AName: String; ADefault: TJSONArray
): TJSONArray;
Var
D : TJSONData;
begin
D:=Find(AName,jtArray);
If (D<>Nil) then
Result:=D As TJSONArray
else
Result:=ADefault;
end;
function TJSONObject.GetObject(const AName: String; ADefault: TJSONObject
): TJSONObject;
Var
D : TJSONData;
begin
D:=Find(AName,jtObject);
If (D<>Nil) then
Result:=D as TJSONObject
else
Result:=ADefault;
end;
function TJSONObject.Find(const AName: String): TJSONData;
Var
I : Integer;
begin
I:=IndexOfName(AName);
If (I=-1) then
Result:=Items[i]
else
Result:=Nil;
end;
function TJSONObject.Find(const AName: String; AType: TJSONType): TJSONData;
begin
Result:=Find(AName);
If Assigned(Result) and (Result.JSONType<>AType) then
Result:=Nil;
end;
end. end.