org.apache.pig.builtin
Class COV.Final

java.lang.Object
  extended by org.apache.pig.EvalFunc<DataBag>
      extended by org.apache.pig.builtin.COV.Final
Enclosing class:
COV

public static class COV.Final
extends EvalFunc<DataBag>


Field Summary
protected  Vector<String> schemaName
           
 
Fields inherited from class org.apache.pig.EvalFunc
log, pigLogger, reporter, returnType
 
Constructor Summary
COV.Final()
           
COV.Final(String... schemaName)
           
 
Method Summary
 DataBag exec(Tuple input)
          This callback method must be implemented by all subclasses.
 
Methods inherited from class org.apache.pig.EvalFunc
finish, getArgToFuncMapping, getCacheFiles, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, isAsynchronous, outputSchema, progress, setPigLogger, setReporter, warn
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

schemaName

protected Vector<String> schemaName
Constructor Detail

COV.Final

public COV.Final()

COV.Final

public COV.Final(String... schemaName)
Method Detail

exec

public DataBag 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<DataBag>
Parameters:
input - the Tuple to be processed.
Returns:
result, of type T.
Throws:
IOException


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