Package cascading.scheme

Interface Summary

SinkCall<Context,Output>	SinkCall provides access to the current Scheme.sink(cascading.flow.FlowProcess, SinkCall) invocation arguments.
SourceCall<Context,Input>	SourceCall provides access to the current Scheme.source(cascading.flow.FlowProcess, SourceCall) invocation arguments.

Class Summary

ConcreteCall<Context,IO>	The concrete base class for SourceCall and SinkCall.
NullScheme<Config,Input,Output,SourceContext,SinkContext>	Class NullScheme is a Scheme that neither reads or writes any values.
Scheme<Config,Input,Output,SourceContext,SinkContext>	A Scheme defines what is stored in a Tap instance by declaring the Tuple field names, and alternately parsing or rendering the incoming or outgoing Tuple stream, respectively.