org.apache.pig.piggybank.evaluation.math
Class NEXTUP

java.lang.Object
  extended by org.apache.pig.EvalFunc<Double>
      extended by org.apache.pig.piggybank.evaluation.math.NEXTUP

public class NEXTUP
extends EvalFunc<Double>

math.NEXTUP implements a binding to the Java function Math.nextUp(double). Given a single data atom it return the floating-point value adjacent to input in the direction of positive infinity

Parameters:
value - Double.
Return Value:
Double
Return Schema:
NEXTUP_inputSchema
Example:
register math.jar;
A = load 'mydata' using PigStorage() as ( float1 );
B = foreach A generate float1, math.NEXTUP(float1);

Author:
ajay garg
See Also:
Math.nextUp(double),

Field Summary
 
Fields inherited from class org.apache.pig.EvalFunc
log, pigLogger, reporter, returnType
 
Constructor Summary
NEXTUP()
           
 
Method Summary
 Double exec(Tuple input)
          java level API
 List<FuncSpec> getArgToFuncMapping()
           
 Schema outputSchema(Schema input)
           
 
Methods inherited from class org.apache.pig.EvalFunc
finish, 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

NEXTUP

public NEXTUP()
Method Detail

exec

public Double exec(Tuple input)
            throws IOException
java level API

Specified by:
exec in class EvalFunc<Double>
Parameters:
input - expects a single numeric value
output - returns a single numeric value, nextup value of the argument
Returns:
result, of type T.
Throws:
IOException

outputSchema

public Schema outputSchema(Schema input)
Overrides:
outputSchema in class EvalFunc<Double>
Parameters:
input - Schema of the input
Returns:
Schema of the output

getArgToFuncMapping

public List<FuncSpec> getArgToFuncMapping()
                                   throws FrontendException
Overrides:
getArgToFuncMapping in class EvalFunc<Double>
Returns:
A List containing FuncSpec objects representing the Function class which can handle the inputs corresponding to the schema in the objects
Throws:
FrontendException


Copyright © ${year} The Apache Software Foundation