Class FilterNull

  extended by cascading.operation.BaseOperation
      extended by cascading.operation.filter.FilterNull
All Implemented Interfaces:
Filter, Operation, Serializable

public class FilterNull
extends BaseOperation
implements Filter

Class FilterNull verifies that every value in the argument values Tuple is not a null value. If a null value is encountered, the current Tuple will be filtered out.

See Also:
FilterNotNull, Serialized Form

Field Summary
Fields inherited from class cascading.operation.BaseOperation
fieldDeclaration, numArgs, trace
Fields inherited from interface cascading.operation.Operation
Constructor Summary
Method Summary
 boolean isRemove(FlowProcess flowProcess, FilterCall filterCall)
          Method isRemove returns true if input should be removed from the tuple stream.
Methods inherited from class cascading.operation.BaseOperation
cleanup, equals, getFieldDeclaration, getNumArgs, getTrace, hashCode, isSafe, prepare, printOperationInternal, toString, toStringInternal
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface cascading.operation.Operation
cleanup, getFieldDeclaration, getNumArgs, isSafe, prepare

Constructor Detail


public FilterNull()
Method Detail


public boolean isRemove(FlowProcess flowProcess,
                        FilterCall filterCall)
Description copied from interface: Filter
Method isRemove returns true if input should be removed from the tuple stream.

Specified by:
isRemove in interface Filter
flowProcess - of type FlowProcess
filterCall - of type FilterCall

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