TBoldExternalVariable¶

External variables are used to send additional values to an OCL-expression

Declaration¶

TBoldExternalVariable = class(TBoldMemoryManagedObject)

Hierarchy¶

TObject
TBoldMemoryManagedObject
TBoldExternalVariable
Direct subclasses
TBoldHandleBasedExternalVariable

Description¶

This is an abstract class and needs to be subclassed. The two operations that must be overridden are GetValue and GetValueType

Once an external variable is created, it can be added to an instance of TBoldExternalVariablelist and sent to EvaluateExpression. One available implementation of this class is the class used for TBoldOCLVariables (TBoldHandleBasedExternalVariable)

Properties¶

Name	Summary	Notes
Name	The name of the variable	read-only
Value	Returns the value of the variable.	read-only
ValueType	Returns the value type of the variable	read-only

Name¶

property Name: String;

The name of the variable

Value¶

property Value: TBoldElement;

Returns the value of the variable.

ValueType¶

property ValueType: TBoldElementTypeInfo;

Returns the value type of the variable

Methods¶

Name	Summary	Notes
Create
GetValue	Abstract method to return the value of the variable	protected, abstract
GetValueType		protected, abstract

Create¶

constructor Create(const Name: String);

GetValue¶

function GetValue: TBoldElement; virtual; abstract;

Override this method to define how the variable stores the value. It might store the value directly in a private field variable, or it might store for example a handle from which the value is retrieved

GetValueType¶

function GetValueType: TBoldElementTypeInfo; virtual; abstract;

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