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javax.ide.extension.spi
Class Stack  

java.lang.Object
  java.util.AbstractCollection
      javax.ide.extension.spi.Stack

All Implemented Interfaces:

java.util.Collection, java.lang.Iterable

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public final class Stack

extends java.util.AbstractCollection

Convenient implementation of a Last In First Out (LIFO) stack. This implementation differs from the one in java.util.Stack in two ways. First, like most of the collection APIs, it is unsynchronized for better performance when synchronization is not required. If a synchronized stack is required, you can use the Collections.synchronizedCollection() 55 method to retrieve a synchronized instance. Second, it does not expose its internal implementation via its superclass. Extending AbstractCollection instead of Vector allows objects of this class to be used interchangably with other collection framework classes without exposing its internal implementation.

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Nested Class Summary
private static class	Stack.ReverseListIterator           Iterator that traverses a list in reverse order.

 

Field Summary
private  java.util.ArrayList	_list

 

Constructor Summary

Stack()           Construct a stack with no additional arguments.

Stack(java.util.Collection c)           Construct a stack initialized to contain all the items in the specified collection.

 

Method Summary
boolean	add(java.lang.Object o)           Add an object to the collection (optional operation).
void	clear()           Remove all elements from the collection (optional operation).
private  java.util.List	getList()           Gets (or lazily instantiates) the list implementation used by this stack.
boolean	isEmpty()           Gets whether there are more elements on the stack.
java.util.Iterator	iterator()           Gets an iterator for elements on the stack.
java.lang.Object	peek()           Obtains the top element on the stack without removing it.
java.lang.Object	pop()           Pops the top element off the stack and returns it.
boolean	push(java.lang.Object o)           Pushes an element onto the stack.
void	replace(java.lang.Object o)           Replaces the top of the stack with the specified object.
java.util.Iterator	reverseIterator()           Gets an iterator for elements on the stack.
int	size()           Return the number of elements in this collection.

 

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, remove, removeAll, retainAll, toArray, toArray, toString

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface java.util.Collection

equals, hashCode

 

Field Detail

_list

private java.util.ArrayList _list

Constructor Detail

Stack

public Stack()

Construct a stack with no additional arguments.

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Stack

public Stack(java.util.Collection c)

Construct a stack initialized to contain all the items in the specified collection. The items will be pushed on to the stack in their order in the collection.

Method Detail

getList

private java.util.List getList()

Gets (or lazily instantiates) the list implementation used by this stack.

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isEmpty

public boolean isEmpty()

Gets whether there are more elements on the stack.

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push

public boolean push(java.lang.Object o)

Pushes an element onto the stack.

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peek

public java.lang.Object peek()

Obtains the top element on the stack without removing it.

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replace

public void replace(java.lang.Object o)

Replaces the top of the stack with the specified object.

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pop

public java.lang.Object pop()

Pops the top element off the stack and returns it.

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reverseIterator

public java.util.Iterator reverseIterator()

Gets an iterator for elements on the stack. This iterator starts at the bottom of the stack and proceeds to the top.

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add

public boolean add(java.lang.Object o)

Description copied from class: java.util.AbstractCollection

Add an object to the collection (optional operation). This implementation always throws an UnsupportedOperationException - it should be overridden if the collection is to be modifiable. If the collection does not accept duplicates, simply return false. Collections may specify limitations on what may be added.

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clear

public void clear()

Description copied from class: java.util.AbstractCollection

Remove all elements from the collection (optional operation). This implementation obtains an iterator over the collection and calls next and remove on it repeatedly (thus this method will fail with an UnsupportedOperationException if the Iterator's remove method does) until there are no more elements to remove. Many implementations will have a faster way of doing this.

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iterator

public java.util.Iterator iterator()

Gets an iterator for elements on the stack. The iterator starts at the top of the stack and proceeds to the bottom of the stack.

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size

public int size()

Description copied from class: java.util.AbstractCollection

Return the number of elements in this collection. If there are more than Integer.MAX_VALUE elements, return Integer.MAX_VALUE.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> javax >> ide >> extension >> [ spi overview ]	PREV CLASS  NEXT CLASS
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