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TBoldSystemTypeInfoHandle

This handle holds the runtime information needed by a TBoldSystemHandle.

Unit: BoldHandles

Declaration

TBoldSystemTypeInfoHandle = class(TBoldElementHandle)

Hierarchy

  1. TComponent
  2. TBoldSubscribableComponent
  3. TBoldElementHandle
  4. TBoldSystemTypeInfoHandle

Description

The information is a efficient representation of the information in the UML-model, heavily optimized for speed.

The type information is created from the model referenced by BoldModel. Several systems can share the same TBoldSystemTypeInfoHandle. In this case, they will be type compatible in the Bold sense of the word.

Bold events
TBoldSystemTypeInfoHandle is a subclass of TBoldSubscribableComponent, and can therefore by subscribed to using AddSmallSubscription. A TBoldSystemTypeInfoHandle. can send the following events:

  • beDestroying: Sent when the handle is about to be destroyed
  • beValueChanged: Sent if it receives any change from the BoldModel component

Properties

Name Summary Notes
BoldModel Link to the TBoldModel component
CheckCodeCheckSum Decides if the checksum in the generated code is honoured
RegionDefinitions The internal representation of the regions defined in the model. read-only
UseGeneratedCode Specifies if generated code is to be used.

BoldModel

property BoldModel: TBoldAbstractModel;

This property must point to a TBoldModel that holds the UML model for the system to be used.

CheckCodeCheckSum

property CheckCodeCheckSum: Boolean;

When code is generated, and UseGeneratedCode is checked, the checksum of the generated code is compared with the checksum of the model at system startup.

In some cases during the debug phase, you may want to do changes that you figure will not require regeneration of code, but nevertheless changes the checksum. Setting this property to False will prevent the checksums from being compared.

Note
Changing this property to False is intended only as a debugging tool. Our recommendation is to check the checksum always, especially in production code! You may even want to write some code that brings up a warning dialog if the CheckCodeCheckSum is false and execute this "sanity checker" at application startup.

RegionDefinitions

property RegionDefinitions: TBoldRegionDefinitions;

The internal representation of the regions defined in the model. See Related Topics for a description of the region definition language.

UseGeneratedCode

property UseGeneratedCode: Boolean;

If this property is true the system will expect the project to include a unit containing generated code for the business-classes, allowing the use of Delphi-types, and user-written code. This is the most common case.

If the property is set to false, all objects will be instantiated as TBoldObjects, and all lists of objects as TBoldObjectLists. In this case all evaluation must be done using OCL, or via methods and properties on the above classes only, such as TBoldObject.BoldMemberByExpressionName.

New objects can be created with TBoldSystem.CreateNewObjectByExpressionName

Methods

Name Summary Notes
Create Creates an instance of TBoldSystemTypeInfoHandle override
Destroy Destroys an instance of TBoldSystemTypeInfoHandle override
GetStaticBoldType Overrides TBoldElementHandle.GetStaticBoldType protected, override
GetStaticSystemTypeInfo Overrides TBoldElementHandle.GetStaticSystemTypeInfo protected, override
GetValue Overrides TBoldElementHandle.GetValue protected, override
InstallOclDefinitionLookUp Bold-internal
RefersToComponent Determines if the TBoldSystemTypeHandle refers to the component in the parameter. override

Create

constructor Create(owner: TComponent); override;

Use Create to create an instance of TBoldSystemTypeInfoHandle.

Destroy

destructor Destroy; override; See also Ancestor Method

Destroy destroys an instance of a TBoldSystemTypeInfoHandle. Do not call Destroy directly, use Free instead.

GetStaticBoldType

function GetStaticBoldType: TBoldElementTypeInfo; override; See also Ancestor Method

Overrides GetStaticBoldType

GetStaticSystemTypeInfo

function GetStaticSystemTypeInfo: TBoldSystemTypeInfo; override; See also Ancestor Method

Overrides GetStaticSystemTypeInfo

GetValue

function GetValue: TBoldElement; override; See also Ancestor Method

Overrides GetValue

InstallOclDefinitionLookUp

procedure InstallOclDefinitionLookUp(const Value: TBoldLookUpOclDefinition);

Bold-internal

RefersToComponent

function RefersToComponent(Component: TBoldSubscribableComponent): Boolean; override; See also Ancestor Method

RefersToComponent is used internally to avoid circular references.

Generated from the Bold 4.0 help (Help/BfD.chm) by Tools/chm2mkdocs.py; member lists reflect Bold 4.0, see the source for members added since.