setContext

Category

User-defined function

Description

The setContext function is a callback that automatically maintains an inverse
relation defined by means of the class templates IlsInvertedRelation or IlsInvertedRelationList. This function must be declared in the target class.
It is called automatically when the relation is established. It is paired with the function unsetContext.

Related Pattern

Bridge

Definition

void setContext(OriginType&, Relation*, IlsRelationId);

This function takes the following arguments:

a reference to the origin of the relation or to an instance of a class from which it derives;

a pointer to the relation itself or void*;

the relation identifier. This identifier helps you differentiate relations of the same type that have the same origin.