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org.hsqldb.lib
Class HsqlDeque  

java.lang.Object
  org.hsqldb.lib.HsqlDeque

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public class HsqlDeque

extends java.lang.Object

jdk 1.1 compatible minimal implementation of a list object suitable for stack, queue and deque usage patterns backed by an Object[]. The memory footprint of the HsqlDeque doubles when it gets full but does not shrink when it gets empty.

Version:

1.7.0

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Field Summary
private  int	DEFAULT_INITIAL_CAPACITY
private  int	endindex
private  int	firstindex
private  java.lang.Object[]	list
private  int	usedsize

 

Constructor Summary

HsqlDeque()

 

Method Summary
boolean	add(java.lang.Object o)
boolean	addFirst(java.lang.Object o)
boolean	addLast(java.lang.Object o)
void	clear()
java.util.Enumeration	elements()
java.lang.Object	get(int i)
java.lang.Object	getFirst()
private  int	getInternalIndex(int i)
java.lang.Object	getLast()
boolean	isEmpty()
java.lang.Object	removeFirst()
java.lang.Object	removeLast()
private  void	resetCapacity()
java.lang.Object	set(int i, java.lang.Object o)
int	size()

 

Methods inherited from class java.lang.Object

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

 

Field Detail

list

private java.lang.Object[] list

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firstindex

private int firstindex

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endindex

private int endindex

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usedsize

private int usedsize

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DEFAULT_INITIAL_CAPACITY

private final int DEFAULT_INITIAL_CAPACITY

See Also:

Constant Field Values

Constructor Detail

HsqlDeque

public HsqlDeque()

Method Detail

size

public int size()

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getFirst

public java.lang.Object getFirst()
                          throws java.util.NoSuchElementException

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getLast

public java.lang.Object getLast()
                         throws java.util.NoSuchElementException

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get

public java.lang.Object get(int i)
                     throws java.lang.IndexOutOfBoundsException

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set

public java.lang.Object set(int i,
                            java.lang.Object o)
                     throws java.lang.IndexOutOfBoundsException

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removeFirst

public java.lang.Object removeFirst()
                             throws java.util.NoSuchElementException

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removeLast

public java.lang.Object removeLast()
                            throws java.util.NoSuchElementException

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add

public boolean add(java.lang.Object o)

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addLast

public boolean addLast(java.lang.Object o)

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addFirst

public boolean addFirst(java.lang.Object o)

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clear

public void clear()

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isEmpty

public boolean isEmpty()

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getInternalIndex

private int getInternalIndex(int i)
                      throws java.lang.IndexOutOfBoundsException

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elements

public java.util.Enumeration elements()

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resetCapacity

private void resetCapacity()

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