datafu.pig.text.opennlp

Class TokenizeSimple

java.lang.Object

org.apache.pig.EvalFunc<org.apache.pig.data.DataBag>

datafu.pig.text.opennlp.TokenizeSimple

public class TokenizeSimple
extends org.apache.pig.EvalFunc<org.apache.pig.data.DataBag>

The OpenNLP Tokenizers segment an input character sequence into tokens. This one uses the OpenNLP class SimpleTokenizer

Example:

 
 define TokenizeSimple datafu.pig.text.opennlp.TokenizeSimple();

 -- input:
 -- ("I believe the Masons have infiltrated the Apache PMC.")
 infoo = LOAD 'input' AS (text:chararray);

 -- output:
 -- ({(I),(believe),(the),(Masons),(have),(infiltrated),(the),(Apache),(PMC),(.)})
 outfoo = FOREACH infoo GENERATE TokenizeSimple(text) as tokens;
 
 

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.pig.EvalFunc

org.apache.pig.EvalFunc.SchemaType

Field Summary

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

Constructors

Constructor and Description
TokenizeSimple()

Method Summary

Modifier and Type	Method and Description
org.apache.pig.data.DataBag	exec(org.apache.pig.data.Tuple input)
org.apache.pig.impl.logicalLayer.schema.Schema	outputSchema(org.apache.pig.impl.logicalLayer.schema.Schema input)

Methods inherited from class org.apache.pig.EvalFunc

allowCompileTimeCalculation, finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, progress, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn

Methods inherited from class java.lang.Object

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

Constructor Detail

TokenizeSimple

public TokenizeSimple()

Method Detail

exec

public org.apache.pig.data.DataBag exec(org.apache.pig.data.Tuple input)
                                 throws java.io.IOException

Specified by:

exec in class org.apache.pig.EvalFunc<org.apache.pig.data.DataBag>

Throws:

java.io.IOException

outputSchema

public org.apache.pig.impl.logicalLayer.schema.Schema outputSchema(org.apache.pig.impl.logicalLayer.schema.Schema input)

Overrides:

outputSchema in class org.apache.pig.EvalFunc<org.apache.pig.data.DataBag>