net.emaze.dysfunctional.consumers

Class FirstElement<E>

java.lang.Object

net.emaze.dysfunctional.consumers.FirstElement<E>

Type Parameters:

E - the iterator element type

All Implemented Interfaces:

Delegate<E,Iterator<E>>

public class FirstElement<E>
extends Object
implements Delegate<E,Iterator<E>>

A unary delegate consuming the first element from an iterator.

Author:

rferranti

Constructor Summary

Constructors

Constructor and Description
FirstElement()

Method Summary

Methods

Modifier and Type	Method and Description
E	perform(Iterator<E> consumable) Consumes the first element from the passed iterator.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FirstElement

public FirstElement()

Method Detail

perform

public E perform(Iterator<E> consumable)

Consumes the first element from the passed iterator.

Specified by:

perform in interface Delegate<E,Iterator<E>>

Parameters:

consumable - the iterator to be consumed

Returns:

the consumed value

Throws:

IllegalArgumentException - if the passed iterator is empty