True to cancel the executor, otherwise is false as default

Provides access to execution context

Executor setup information

Method that triggers the call-back

Change state of all internal children to a specific mode while considers an exception

Change state of all sibling to a specific mode while considers an exception

Traverse and executes all internal children

Signals the executor that new engine has created during execution under this executor

Signals to raise Executed event

Signals to raise Executing event

Signals to raise ItemOutOfScope event

Signals to raise ItemTracing event

Registers a cleanup routine

Event that clients/host may handle for a call-back

When a new engine is created during execution of an ActiveElement

When execution has finished

Before executing

When execution path goes out of an element

Happens for all active elements during the execution

Creates a validator engine based on current executor