Dynamic Access Modifier
Modified on 2012/01/20 21:14 by John — Categorized as: Jetfire Language
Overview
¶
Access modifiers are keywords used to specify the declared accessibility of a member or a type. The four access modifiers:
public
protected
internal
private
Jetfire allows access modifiers to be dynamic. Typically in an OO language access modifiers (
including C#
) are fixed in the code. The access modifiers can not be changed without changing the source code.
Jetfire allows access modifiers to changed dynamically using 4 separate mechanisms:
States Construct
Access Construct
using a boolean method as a constraint
See
'Basket' example
.
Access Construct
using a
role
as a constraint
See
'Approval Request' example
.
Access Construct
and States Construct
See
'Advanced Approval Request'
example.
Note:
For code compilation Jetfire only uses the standard access modifiers (public, protected, internal and private). That is, the standard access modifiers determine if the object, such as workflow, property, method or field, is visible to other code. If the object is referenced in other code where it is not visible a compilation error will result.
The dynamic access modifier mechanisms determine if access is allowed when the code is executed.