org.apache.pig.piggybank.evaluation.string
Class SUBSTRING

java.lang.Object
  org.apache.pig.EvalFunc<String>
      org.apache.pig.piggybank.evaluation.string.SUBSTRING

Deprecated. Use SUBSTRING

@Deprecated
public class SUBSTRING
extends EvalFunc<String>

Field Summary

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

SUBSTRING()
Deprecated.

Method Summary

String	exec(Tuple input) Deprecated. Method invoked on every tuple during foreach evaluation
Schema	outputSchema(Schema input) Deprecated. Report the schema of the output of this UDF.

Methods inherited from class org.apache.pig.EvalFunc

finish, getArgToFuncMapping, getCacheFiles, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, isAsynchronous, progress, setPigLogger, setReporter, warn

Methods inherited from class java.lang.Object

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

Constructor Detail

SUBSTRING

public SUBSTRING()

Deprecated.

Method Detail

exec

public String exec(Tuple input)
            throws IOException

Deprecated.

Method invoked on every tuple during foreach evaluation

Specified by:

exec in class EvalFunc<String>

Parameters:

input - tuple; first column is assumed to have the column to convert

Returns:

result, of type T.

Throws:

IOException

outputSchema

public Schema outputSchema(Schema input)

Deprecated.

Description copied from class: EvalFunc

Report the schema of the output of this UDF. Pig will make use of this in error checking, optimization, and planning. The schema of input data to this UDF is provided.

Overrides:

outputSchema in class EvalFunc<String>

Parameters:

input - Schema of the input

Returns:

Schema of the output