org.apache.pig.piggybank.evaluation.math
Class LongMax
java.lang.Object
org.apache.pig.EvalFunc<Long>
org.apache.pig.piggybank.evaluation.math.LongMax
public class LongMax
- extends EvalFunc<Long>
math.max implements a binding to the Java function
Math.max(long,long)
for computing the
the max value of the arguments. The returned value will be an nt which is
the maximum of the inputs.
- Parameters:
value
- 2 long values
.
- Return Value:
long
max value of two input
- Return Schema:
- max_inputSchema
- Example:
register math.jar;
A = load 'mydata' using PigStorage() as ( float1 );
B = foreach A generate float1, math.max(float1);
- Author:
- ajay garg
- See Also:
Math#max(double)
,
Methods inherited from class org.apache.pig.EvalFunc |
finish, getArgToFuncMapping, 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 |
LongMax
public LongMax()
exec
public Long exec(Tuple input)
throws IOException
- java level API
- Specified by:
exec
in class EvalFunc<Long>
- Parameters:
input
- expects a two numeric valueoutput
- returns a single numeric value, which is the smaller of two inputs
- Returns:
- result, of type T.
- Throws:
IOException
outputSchema
public Schema outputSchema(Schema input)
- Overrides:
outputSchema
in class EvalFunc<Long>
- Parameters:
input
- Schema of the input
- Returns:
- Schema of the output
Copyright © ${year} The Apache Software Foundation