Function

"Function" node is a child node of a column node. Node text is the functions type name. Child nodes (function parameters) can be column nodes or constant parameters (direct dependencies).

Triggers

"Triggers" node is a child node of a column node. Child nodes are all computed columns and validators with direct dependency to paraen column. ("Triggers" means: changing column value will trigger invalidation of direct dependent items.)

Depends on

"Depends on" node is a child node of a column and validator node. Its child nodes are all (direct and indirect) dependencies (flatten hirarchy).

Parameter Column Association

Represents a parameter linked with a column via access path (see Access Path Browser Dialog).

Constant Parameter

Represents a parameter with constant value (see value in PARAMETER Properties).

Parameter Column with Self Reference

Parameter will contain the cells previous value.

Note
Useful when working with reference types like lists or arrays. When a function returns a value BCF checks if value equals previous value. If equals invalidating dependents will be omitted. Return previous value when value and previous value are the same (sequence equals). This may speed up calculation.

Parameter Column Association with Runtime-Preventable Circular Reference

Possible circular reference at runtime.

When accessing parameters via self joins (relation where same table is at relations parent and child end) a circular reference may occur (e.g. A row is its own parent row and column "Height" is computed as sum of child rows "Height").

Parameter Column Association with NOT Preventable Circular Reference at Runtime

A circular reference in dependencies (e.g. Column "A" depends on column "B" of same row and column "B" depends on column "A" of same row).