Interface to be implemented by 'shim' classes which register with the engine to receive callbacks when tasks are posted and cancelled.
An interface to handle problems.
Class which encapsulates the management and processing of InterfaceB event observers.
Handles the announcement of engine-generated events to the environment.
Provides for the persistence of the last allocated case id, and the generation of new case ids.
Registers the default service and external client accounts when they have not been previously persisted (ie.
Handles the restoration of persisted objects and data pertaining to the Engine.
A cache of active net runners.
This class acts as a handler for transactional persistence within the engine.
A problem event describes the nature of a runtime execution problem.
The unique identifier of a specification.
A mapping of specification identifiers to a list of versions of that specification.
A cache of active workitems.
Workitem completion types
Copyright © 2004-2014 The YAWL Foundation.