org.apache.pig.builtin
Class ARITY
java.lang.Object
org.apache.pig.EvalFunc<DataAtom>
org.apache.pig.builtin.ARITY
public class ARITY
- extends EvalFunc<DataAtom>
Constructor Summary |
ARITY()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ARITY
public ARITY()
exec
public void exec(Tuple input,
DataAtom output)
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<DataAtom>
- Parameters:
input
- the Tuple to be processed.
- Throws:
IOException
outputSchema
public Schema outputSchema(Schema input)
- Overrides:
outputSchema
in class EvalFunc<DataAtom>
- Parameters:
input
- Schema of the input
- Returns:
- Schema of the output
Copyright © ${year} The Apache Software Foundation