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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.Table.Set_.Registration;
interface
uses
Collection.List,
Collection.Map,
Collection.Set_,
Sql.Database.Script,
Sql.Table.Set_,
Text,
Uuid;
type
TSqlTableSetDependencyGenerator = class(TGenerator<TSet<TSqlTableSet>>)
public
function Generate(Sets: TSet<TSqlTableSet>): TSet<TSqlTableSet>; override;
end;
TSqlTableSetRegistration = class(TObject)
private
FTableSets: TSet<TSqlTableSet>;
protected
TableSetIndex: TMap<TText, TSqlTableSet>;
function DetermineInitializationOrder(): TList<TSqlTableSet>;
public
constructor Create(); virtual;
destructor Destroy(); override;
procedure Register(TableSet: TSqlTableSet);
function FindWithId(const Id: TUuid): TSqlTableSet;
procedure Initialize();
procedure RegisterDatabaseScripts(Scripts: TList<TSqlDatabaseScript>);
property TableSets: TSet<TSqlTableSet> read FTableSets;
end;
var
TableSetRegistration: TSqlTableSetRegistration deprecated 'Please use TSqlDatabaseSetup';
implementation
uses
Collection.List.Array_,
Graph,
Graph.Sort.Topological,
Object_.Set_,
Text.Map.Hash;
{ TSqlTableSetRegistration }
constructor TSqlTableSetRegistration.Create();
begin
inherited Create();
FTableSets := TObjectSet<TSqlTableSet>.Create();
TableSetIndex := TTextHashMap<TSqlTableSet>.Create();
end;
destructor TSqlTableSetRegistration.Destroy();
begin
TableSets.Free();
TableSetIndex.Free();
inherited Destroy();
end;
function TSqlTableSetRegistration.DetermineInitializationOrder(): TList<TSqlTableSet>;
var
TableSet: TSqlTableSet;
TopologicalSort: TTopologicalSort<TSqlTableSet>;
SortedTableSets: TList<TSqlTableSet>;
Dependencies: TGraph<TSqlTableSet>;
begin
Dependencies := TSqlTableSet.TDependencies.Create(TableSets);
TopologicalSort := TTopologicalSort<TSqlTableSet>.Create();
SortedTableSets := TopologicalSort.Sort(Dependencies);
Result := TArrayList<TSqlTableSet>.Create();
for TableSet in SortedTableSets do
if not TableSet.Initialized then
Result.Add(TableSet);
SortedTableSets.Free();
TopologicalSort.Free();
Dependencies.Free();
end;
function TSqlTableSetRegistration.FindWithId(const Id: TUuid): TSqlTableSet;
begin
Result := TableSetIndex[Id.ToText()];
end;
procedure TSqlTableSetRegistration.Initialize();
var
TableSet: TSqlTableSet;
Generator: TSqlTableSetDependencyGenerator;
InitializationOrder: TList<TSqlTableSet>;
begin
Generator := TSqlTableSetDependencyGenerator.Create();
TableSets.AddClosure(Generator);
Generator.Free();
InitializationOrder := DetermineInitializationOrder();
for TableSet in InitializationOrder do
TableSet.CreateTypes();
for TableSet in InitializationOrder do
TableSet.CreateTables();
for TableSet in InitializationOrder do
TableSet.CreateViews();
for TableSet in InitializationOrder do
TableSet.ConnectTypes();
for TableSet in InitializationOrder do
TableSet.Initialized := True;
InitializationOrder.Free();
end;
procedure TSqlTableSetRegistration.Register(TableSet: TSqlTableSet);
begin
if FindWithId(TableSet.Id) = nil then
begin
TableSets.Add(TableSet);
TableSetIndex[TableSet.Id.ToText()] := TableSet;
end;
end;
procedure TSqlTableSetRegistration.RegisterDatabaseScripts(Scripts: TList<TSqlDatabaseScript>);
var
TableSet: TSqlTableSet;
begin
for TableSet in TableSets do
TableSet.RegisterScripts();
end;
{ TSqlTableSetDependencyGenerator }
function TSqlTableSetDependencyGenerator.Generate(Sets: TSet<TSqlTableSet>): TSet<TSqlTableSet>;
var
Set_: TSqlTableSet;
begin
Result := TObjectSet<TSqlTableSet>.Create();
for Set_ in Sets do
Result.AddAll(Set_.Dependencies);
end;
end.
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