org.apache.mahout.math.function

Interface ObjectObjectProcedure<K,V>

public interface ObjectObjectProcedure<K,V>

Interface that represents a procedure object: a procedure that takes two arguments and returns a 'continue' flag.

Method Summary

Modifier and Type	Method and Description
boolean	apply(K key, V value) Applies a procedure to an argument.

Method Detail

apply

boolean apply(K key,
              V value)

Applies a procedure to an argument. Optionally can return a boolean flag to inform the object calling the procedure.

Example: forEach() methods often use procedure objects. To signal to a forEach() method whether iteration should continue normally or terminate (because for example a matching element has been found), a procedure can return false to indicate termination and true to indicate continuation.

Parameters:

key - key value passed to the procedure

value - value value passed to the procedure.

Returns:

a flag to inform the object calling the procedure.