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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 Task.Group;
interface
uses
Collection.List,
DateTime.Calendar.Gregorian.Instant,
Object_.ReferenceCounted,
Task,
Task.Node,
Task.Scheduled,
Text;
type
TTaskRegistration = class(TObject)
private
FTask: TTask;
FDependencies: TList<TTask>;
procedure SetTask(const Value: TTask);
public
constructor Create(Task: TTask); virtual;
destructor Destroy(); override;
property Task: TTask read FTask write SetTask;
property Dependencies: TList<TTask> read FDependencies;
end;
TTaskGroup = class(TTaskNode)
private
FTasks: TList<TTaskRegistration>;
FStopAfter: TGregorianInstant;
procedure SetStopAfter(const Value: TGregorianInstant);
public
Name: TText;
constructor Create(); override;
destructor Destroy(); override;
function Register(Task: TTask): TTaskRegistration;
function ToText(): TText; override;
property Tasks: TList<TTaskRegistration> read FTasks;
published
property StopAfter: TGregorianInstant read FStopAfter write SetStopAfter;
end;
TScheduledTaskGroup = class(TReferenceCountedObject)
private
FTaskGroup: TTaskGroup;
FTasks: TList<TScheduledTask>;
protected
procedure SetTaskGroup(Value: TTaskGroup);
public
constructor Create(); override;
destructor Destroy(); override;
property TaskGroup: TTaskGroup read FTaskGroup write SetTaskGroup;
property Tasks: TList<TScheduledTask> read FTasks;
end;
implementation
uses
Object_.List,
Object_.Reference.Counter;
{ TTaskGroup }
constructor TTaskGroup.Create();
begin
inherited Create();
FTasks := TObjectList<TTaskRegistration>.Create();
end;
destructor TTaskGroup.Destroy();
begin
Tasks.Free();
StopAfter.ReleaseReference();
inherited Destroy();
end;
function TTaskGroup.Register(Task: TTask): TTaskRegistration;
begin
Result := TTaskRegistration.Create(Task);
Tasks.Add(Result);
end;
procedure TTaskGroup.SetStopAfter(const Value: TGregorianInstant);
begin
if Value <> StopAfter then
begin
Value.AddReference();
StopAfter.ReleaseReference();
FStopAfter := Value;
end;
end;
function TTaskGroup.ToText(): TText;
begin
if Name.Count > 0 then
Result := Name
else
Result := inherited ToText();
end;
{ TTaskRegistration }
constructor TTaskRegistration.Create(Task: TTask);
begin
inherited Create();
FDependencies := TObjectList<TTask>.Create();
FDependencies.ElementManager := TReferenceCounter<TTask>.Create();
Self.Task := Task;
end;
destructor TTaskRegistration.Destroy();
begin
Task.ReleaseReference();
Dependencies.Free();
inherited Destroy();
end;
procedure TTaskRegistration.SetTask(const Value: TTask);
begin
if Value <> Task then
begin
Value.AddReference();
Task.ReleaseReference();
FTask := Value;
end;
end;
{ TScheduledTaskGroup }
constructor TScheduledTaskGroup.Create();
begin
inherited Create();
FTasks := TObjectList<TScheduledTask>.Create();
FTasks.ElementManager := TReferenceCounter<TScheduledTask>.Create();
end;
destructor TScheduledTaskGroup.Destroy();
begin
TaskGroup.ReleaseReference();
Tasks.Free();
inherited Destroy();
end;
procedure TScheduledTaskGroup.SetTaskGroup(Value: TTaskGroup);
begin
if Value <> TaskGroup then
begin
Value.AddReference();
TaskGroup.ReleaseReference();
FTaskGroup := Value;
end;
end;
end.
|