Class WhenClause

Namespace: YndigoBlue.Velocity.Model

Assembly: YndigoBlue.Velocity.dll

Represents a single WHEN branch of a Case expression.

public class WhenClause

Inheritance: object

WhenClause

Remarks

A WHEN branch takes one of two shapes, matching the two forms of the SQL CASE expression:

Searched — Condition is set and Value is null. The branch is chosen when the condition evaluates to true, producing WHEN price > 100 THEN 'Premium'.
Simple — Value is set and Condition is null. The branch is chosen when the value equals the owning case expression's operand, producing WHEN 'A' THEN 'Excellent'.

Instances are created by When(IFilterItem, IElement) and When(IElement, IElement) rather than directly, so the branch shape always matches the form of the case expression it belongs to.

Constructors

WhenClause(IElement, IElement): Creates a WHEN branch for a simple case expression.

WhenClause(IFilterItem, IElement): Creates a WHEN branch for a searched case expression.

Properties

Condition: Gets the condition that selects this branch, or null when this is a simple case branch.

IsSearched: Gets whether this branch belongs to a searched case expression (a condition rather than a value).

Result: Gets the value produced when this branch is selected.

Value: Gets the value compared against the case operand, or null when this is a searched case branch.