cascading.operation.filter
Class Logic

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

All Implemented Interfaces:

Filter, Operation, Serializable

Direct Known Subclasses:

And, Or, Xor

public abstract class Logic
extends BaseOperation
implements Filter

Class Logic is the base class for logical Filter operations.

See Also:

And, Or, Xor, Serialized Form

Field Summary

protected Fields[]	argumentSelectors Field fields
protected Filter[]	filters Field filters

Fields inherited from class cascading.operation.BaseOperation

fieldDeclaration, numArgs, trace

Fields inherited from interface cascading.operation.Operation

ANY

Constructor Summary

protected	Logic(Fields[] argumentSelectors, Filter[] filters)
protected	Logic(Fields lhsArgumentSelector, Filter lhsFilter, Fields rhsArgumentSelector, Filter rhsFilter)
protected	Logic(Filter... filters)

Method Summary

void	cleanup(FlowProcess flowProcess, OperationCall operationCall) Method cleanup does nothing, and may safely be overridden.
protected TupleEntry[]	getArgumentEntries()
protected int	getFieldsSize()
void	prepare(FlowProcess flowProcess, OperationCall operationCall) Method prepare does nothing, and may safely be overridden.
protected void	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.Filter

isRemove

Methods inherited from interface cascading.operation.Operation

getFieldDeclaration, getNumArgs

Field Detail

argumentSelectors

protected final Fields[] argumentSelectors

Field fields

filters

protected final Filter[] filters

Field filters

Constructor Detail

Logic

protected Logic(Filter... filters)

Logic

protected Logic(Fields lhsArgumentSelector,
                Filter lhsFilter,
                Fields rhsArgumentSelector,
                Filter rhsFilter)

Logic

protected Logic(Fields[] argumentSelectors,
                Filter[] filters)

Method Detail

verify

protected void verify()

prepare

public void prepare(FlowProcess flowProcess,
                    OperationCall operationCall)

Description copied from class: BaseOperation

Method prepare does nothing, and may safely be overridden.

Specified by:

prepare in interface Operation

Overrides:

prepare in class BaseOperation

cleanup

public void cleanup(FlowProcess flowProcess,
                    OperationCall operationCall)

Description copied from class: BaseOperation

Method cleanup does nothing, and may safely be overridden.

Specified by:

cleanup in interface Operation

Overrides:

cleanup in class BaseOperation

getFieldsSize

protected int getFieldsSize()

getArgumentEntries

protected final TupleEntry[] getArgumentEntries()