Struct EntityTypeHandle

A handle to the Entity component type, used to access an ArchetypeChunk's entities in a job.

Namespace: Unity.Entities

Syntax

[NativeContainer]
[NativeContainerIsReadOnly]
public struct EntityTypeHandle

Remarks

Passing a type handle to a job automatically registers the job as a reader or writer of that type, which allows the DOTS safety system to detect potential race conditions between concurrent jobs which access the same component type.

To create a EntityTypeHandle, use GetEntityTypeHandle(). While type handles can be created just in time before they're used, it is more efficient to create them once during system creation, cache them in a private field on the system, and incrementally update them with Update(SystemBase) just before use.

Methods

Name	Description
ToFixedString()	Returns "EntityTypeHandle".
Update(SystemBase)	When a EntityTypeHandle is cached by a system across multiple system updates, calling this function inside the system's OnUpdate() method performs the minimal incremental updates necessary to make the type handle safe to use.
Update(ref SystemState)	When a EntityTypeHandle is cached by a system across multiple system updates, calling this function inside the system's OnUpdate() method performs the minimal incremental updates necessary to make the type handle safe to use.