org.apache.pig.builtin
Class IsEmpty
java.lang.Object
org.apache.pig.FilterFunc
org.apache.pig.builtin.IsEmpty
public class IsEmpty
- extends FilterFunc
Method Summary |
boolean |
exec(Tuple input)
This callback method must be implemented by all subclasses. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
IsEmpty
public IsEmpty()
exec
public boolean exec(Tuple input)
throws IOException
- Description copied from class:
FilterFunc
- 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 FilterFunc
- Parameters:
input
- the Tuple to be processed.
- Throws:
IOException
Copyright © ${year} The Apache Software Foundation