Class Discard

  extended by cascading.pipe.Pipe
      extended by cascading.pipe.SubAssembly
          extended by cascading.pipe.assembly.Discard
All Implemented Interfaces:
FlowElement, Serializable

public class Discard
extends SubAssembly

Class Discard is a SubAssembly that will retain all incoming fields except those given on the constructor.

Use this pipe to narrow a stream of tuples, removing unused data.

See Also:
Retain, Serialized Form

Field Summary
Fields inherited from class cascading.pipe.Pipe
configDef, previous, stepConfigDef
Constructor Summary
Discard(Pipe previous, Fields discardFields)
Method Summary
Methods inherited from class cascading.pipe.SubAssembly
getName, getPrevious, getTailNames, getTails, setTails, unwind
Methods inherited from class cascading.pipe.Pipe
equals, getConfigDef, getHeads, getStepConfigDef, getTrace, hasConfigDef, hashCode, hasStepConfigDef, isEquivalentTo, named, names, outgoingScopeFor, pipes, print, printInternal, resolveFields, resolveIncomingOperationFields, toString
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail


public Discard(Pipe previous,
                                          Fields discardFields)

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