Allow Step.init() to be async

ke4roh / vertx-engine

An execution engine for processing things, based on vertx

Apache License 2.0

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Allow Step.init() to be async #34

Closed ke4roh closed 5 years ago

ke4roh commented 5 years ago

If some I/O were required in Step.init, or some other long operation, it will need a Completable so that it can announce when it's finished. This allows that.