Module engine

Interfaces for an application to begin a runtime.

An Engine stores policies for an application. A Policy is required to process Commands and defines how the runtime’s graph is constructed.

Structs

• MergeIds
  The IDs to a merge command in sorted order.
• NullSink
• PolicyId

Enums

• CommandRecall
  Whether to execute a command’s recall block on command failure
• EngineError
  An error returned by the runtime engine.

Traits

• Engine
  The Engine manages storing and retrieving Policy.
• Policy
  Policy evaluates actions and Commands on the graph, emitting effects as a result.
• Sink
  The Sink transactionally consumes effects from evaluating Policy.