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

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

Deprecated. Use TRIM

@Deprecated
public class Trim
extends EvalFunc<String>

Field Summary

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

Trim()
Deprecated.

Method Summary

String	exec(Tuple input) Deprecated. This callback method must be implemented by all subclasses.
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

Trim

public Trim()

Deprecated.

Method Detail

exec

public String exec(Tuple input)
            throws IOException

Deprecated.

Description copied from class: EvalFunc

This callback method must be implemented by all subclasses. This is the method that will be invoked on every Tuple of a given dataset. Since the dataset may be divided up in a variety of ways the programmer should not make assumptions about state that is maintained between invocations of this method.

Specified by:

exec in class EvalFunc<String>

Parameters:

input - the Tuple to be processed.

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