cascading.operation.filter

Class FilterNull

java.lang.Object

cascading.operation.BaseOperation

cascading.operation.filter.FilterNull

All Implemented Interfaces:

DeclaresResults, Filter, Operation, Traceable, 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

ANY

Constructor Summary

Constructors

Constructor and Description
FilterNull()

Method Summary

Methods

Modifier and Type	Method and Description
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, flush, 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, flush, getFieldDeclaration, getNumArgs, isSafe, prepare

Constructor Detail

FilterNull

public FilterNull()

Method Detail

isRemove

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

Parameters:

flowProcess - of type FlowProcess

filterCall - of type FilterCall

Returns:

boolean