Class GlobalForAttribute<TIdentity>
- Assembly
- Cratis.Chronicle.dll
Attribute used to declare event handlers once for every variant of TIdentity, rather
than repeating them on each VariantOfAttribute<TIdentity> type.
[AttributeUsage(AttributeTargets.Class|AttributeTargets.Struct, AllowMultiple = false)]
public sealed class GlobalForAttribute<TIdentity> : Attribute, IProjectionAnnotationType Parameters
TIdentityThe type that anchors the logical identity the variants are grouped under.
- Inheritance
-
GlobalForAttribute<TIdentity>
- Implements
- Inherited Members
- Extension Methods
Remarks
The decorated type carries the shared mappings as ordinary model-bound members - for example a property with
SetFromAttribute<TEvent>. Every mapping is merged into every variant of
TIdentity, and every variant must have the members the mappings target; one that does
not is a declaration error rather than a silently skipped mapping.
A shared handler can only ever update an already-active variant. It is merged as an update-only, self-referential join, so an event handled globally never creates a variant and can never resurrect the entity into a variant it has since left.
Constructors
GlobalForAttribute()
public GlobalForAttribute()Properties
Identity
Gets the type that anchors the logical identity the variants are grouped under.
public Type Identity { get; }