cascading.operation.filter
Class Xor

java.lang.Object
  cascading.operation.BaseOperation
      cascading.operation.filter.Logic
          cascading.operation.filter.Xor

All Implemented Interfaces:

Filter, Operation, Serializable

public class Xor
extends Logic

Class Xor is a Filter class that will logically 'xor' (exclusive or) the results of the constructor provided Filter instances.

Logically, if Filter.isRemove(cascading.flow.FlowProcess,cascading.operation.FilterCall) returns true for all given instances, or returns false for all given instances, this filter will return true.

Note that Xor can only be applied to two values.

See Also:

And, Or, Not, Serialized Form

Field Summary

Fields inherited from class cascading.operation.filter.Logic

argumentSelectors, filters

Fields inherited from class cascading.operation.BaseOperation

fieldDeclaration, numArgs, trace

Fields inherited from interface cascading.operation.Operation

ANY

Constructor Summary

Xor(Fields lhsArgumentSelector, Filter lhsFilter, Fields rhsArgumentSelector, Filter rhsFilter)
Constructor Xor creates a new Xor instance.

Xor(Filter... filters)
Constructor Xor creates a new Xor instance where all Filter instances receive all arguments.

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.filter.Logic

cleanup, getArgumentEntries, getFieldsSize, prepare, verify

Methods inherited from class cascading.operation.BaseOperation

getFieldDeclaration, getNumArgs, getTrace, printOperationInternal, toString, toStringInternal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface cascading.operation.Operation

getFieldDeclaration, getNumArgs

Constructor Detail

Xor

public Xor(Filter... filters)

Constructor Xor creates a new Xor instance where all Filter instances receive all arguments.

Parameters:

filters - of type Filter...

Xor

public Xor(Fields lhsArgumentSelector,
           Filter lhsFilter,
           Fields rhsArgumentSelector,
           Filter rhsFilter)

Constructor Xor creates a new Xor instance.

Parameters:

lhsArgumentSelector - of type Fields

lhsFilter - of type Filter

rhsArgumentSelector - of type Fields

rhsFilter - of type Filter

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.

Parameters:

flowProcess - of type FlowProcess

filterCall - of type FilterCall

Returns:

boolean

See Also:

Filter.isRemove(cascading.flow.FlowProcess,cascading.operation.FilterCall)