net.fortytwo.ripple
Class ListNode<T>

java.lang.Object
  net.fortytwo.ripple.ListNode<T>

public abstract class ListNode<T>
extends Object

The head of an abstract linked list.

Author:

Joshua Shinavier (http://fortytwo.net)

Constructor Summary

ListNode()

Method Summary

boolean	equals(ListNode<T> other)
abstract T	getFirst()
abstract ListNode<T>	getRest()
abstract boolean	isNil()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ListNode

public ListNode()

Method Detail

getFirst

public abstract T getFirst()

Returns:

the value at the head of the list, or null if this is a nil list

getRest

public abstract ListNode<T> getRest()

Returns:

the rest of the list, or null if this is a nil list

isNil

public abstract boolean isNil()

Returns:

whether this is a nil list node, being the terminator of any number of lists

equals

public boolean equals(ListNode<T> other)

toString

public String toString()

Overrides:

toString in class Object