Package org.exolab.adaptx.util

Class ListStack

java.lang.Object

org.exolab.adaptx.util.List

org.exolab.adaptx.util.ListStack

public class ListStack
extends List

A representation of a Stack that does not use Synchronization. For compatibility this class supports the same methods as a java.util.Stack (JDK)

Author:

Keith Visco

Constructor Summary

Constructors

Constructor	Description
ListStack()	Creates an empty Stack

Method Summary

Modifier and Type	Method	Description
boolean	empty()	Tests for an empty Stack
java.lang.Object	peek()	Returns the Object that is currently on top of the Stack.
java.lang.Object	pop()	Removes and returns the Object that is currently on top of the Stack.
void	push(java.lang.Object object)	Adds the given Object to the top of the Stack
int	search(java.lang.Object object)	Searches for the given Object in the stack and returns it's position relative to the top of the Stack.

Methods inherited from class org.exolab.adaptx.util.List

add, add, clear, clone, contains, equals, get, hashCode, indexOf, isEmpty, lastIndexOf, remove, remove, set, size, subList, toArray, toArray, trimToSize

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ListStack

public ListStack()

Creates an empty Stack

Method Detail

empty

public boolean empty()

Tests for an empty Stack

Returns:

true if there are no elements on the stack, otherwise false.

peek

public java.lang.Object peek()
                      throws java.util.EmptyStackException

Returns the Object that is currently on top of the Stack. Unlike #pop the Object is not removed from the Stack.

Returns:

the Object that is currently the top of the stack

Throws:

java.util.EmptyStackException - when there are no elements currently on the Stack

pop

public java.lang.Object pop()
                     throws java.util.EmptyStackException

Removes and returns the Object that is currently on top of the Stack.

Returns:

the Object that is currently the top of the stack

Throws:

java.util.EmptyStackException - when there are no elements currently on the Stack

push

public void push(java.lang.Object object)

Adds the given Object to the top of the Stack

search

public int search(java.lang.Object object)

Searches for the given Object in the stack and returns it's position relative to the top of the Stack.