org.apache.pig.builtin
Class StringMax.Final

java.lang.Object
  org.apache.pig.EvalFunc<String>
      org.apache.pig.builtin.StringMax.Final

Enclosing class:

StringMax

public static class StringMax.Final
extends EvalFunc<String>

Field Summary

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

StringMax.Final()

Method Summary

String

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

Methods inherited from class org.apache.pig.EvalFunc

finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, isAsynchronous, outputSchema, 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

StringMax.Final

public StringMax.Final()

Method Detail

exec

public String exec(Tuple input)
            throws IOException

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