A runtime service locator interface for retrieving flow definitions by
id.
Flow locators are needed by flow executors at runtime to retrieve
fully-configured flow definitions to support launching new flow executions.
author: Keith Donald author: Erwin Vervaet
Lookup the flow definition with the specified id.
Parameters: id - the flow definition id the flow definition throws: NoSuchFlowDefinitionException - when the flow definition with thespecified id does not exist throws: FlowDefinitionConstructionException - if there is a problem constructing the identified flow definition