cascading.operation.regex
Class RegexSplitGenerator

java.lang.Object
  cascading.operation.BaseOperation<C>
      cascading.operation.regex.RegexOperation
          cascading.operation.regex.RegexSplitGenerator

All Implemented Interfaces:

Function, Operation, Serializable

public class RegexSplitGenerator
extends RegexOperation
implements Function

Class RegexGenerator will emit a new Tuple for every split on the incoming argument value delimited by the given patternString.

This could be used to break a document into single word tuples for later processing for a word count.

See Also:

Serialized Form

Field Summary

Fields inherited from class cascading.operation.regex.RegexOperation

patternString

Fields inherited from class cascading.operation.BaseOperation

fieldDeclaration, numArgs, trace

Fields inherited from interface cascading.operation.Operation

ANY

Constructor Summary

RegexSplitGenerator(Fields fieldDeclaration, String patternString)
Constructor RegexGenerator creates a new RegexGenerator instance.

RegexSplitGenerator(String patternString)
Constructor RegexGenerator creates a new RegexGenerator instance.

Method Summary

void	operate(FlowProcess flowProcess, FunctionCall functionCall) Method operate provides the implementation of this Function.

Methods inherited from class cascading.operation.regex.RegexOperation

getPattern

Methods inherited from class cascading.operation.BaseOperation

cleanup, getFieldDeclaration, getNumArgs, getTrace, prepare, 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

cleanup, getFieldDeclaration, getNumArgs, prepare

Constructor Detail

RegexSplitGenerator

public RegexSplitGenerator(String patternString)

Constructor RegexGenerator creates a new RegexGenerator instance.

Parameters:

patternString - of type String

RegexSplitGenerator

public RegexSplitGenerator(Fields fieldDeclaration,
                           String patternString)

Constructor RegexGenerator creates a new RegexGenerator instance.

Parameters:

fieldDeclaration - of type Fields

patternString - of type String

Method Detail

operate

public void operate(FlowProcess flowProcess,
                    FunctionCall functionCall)

Description copied from interface: Function

Method operate provides the implementation of this Function.

Specified by:

operate in interface Function

Parameters:

flowProcess - of type FlowProcess

functionCall - of type FunctionCall

See Also:

Function.operate(cascading.flow.FlowProcess,cascading.operation.FunctionCall)