org.apache.batik.util

Class SoftDoublyIndexedTable

public class SoftDoublyIndexedTable extends Object

This class represents a doubly indexed hash table, which holds soft references to the contained values.
This HashMap is not Thread-safe.

Nested Class Summary
protected class	SoftDoublyIndexedTable.Entry To manage collisions

Field Summary
protected int	count The number of entries
protected static int	INITIAL_CAPACITY The initial capacity
protected ReferenceQueue	referenceQueue The reference queue.
protected SoftDoublyIndexedTable.Entry[]	table The underlying array

Constructor Summary
	SoftDoublyIndexedTable() Creates a new SoftDoublyIndexedTable.
	SoftDoublyIndexedTable(int c) Creates a new DoublyIndexedTable.

Method Summary
void	clear() Clears the table.
Object	get(Object o1, Object o2) Gets the value of a variable
protected int	hashCode(Object o1, Object o2) Computes a hash code corresponding to the given objects.
Object	put(Object o1, Object o2, Object value) Sets a new value for the given variable
protected void	rehash() Rehash the table
protected void	removeClearedEntries() Removes the cleared entries.
int	size() Returns the size of this table.

Field Detail

count

protected int count

The number of entries

INITIAL_CAPACITY

protected static final int INITIAL_CAPACITY

The initial capacity

referenceQueue

protected ReferenceQueue referenceQueue

The reference queue.

table

protected SoftDoublyIndexedTable.Entry[] table

The underlying array

Constructor Detail

SoftDoublyIndexedTable

public SoftDoublyIndexedTable()

Creates a new SoftDoublyIndexedTable.

SoftDoublyIndexedTable

public SoftDoublyIndexedTable(int c)

Creates a new DoublyIndexedTable.

Parameters: c The inital capacity.

Method Detail

clear

public void clear()

Clears the table.

get

public Object get(Object o1, Object o2)

Gets the value of a variable

Returns: the value or null

hashCode

protected int hashCode(Object o1, Object o2)

Computes a hash code corresponding to the given objects.

put

public Object put(Object o1, Object o2, Object value)

Sets a new value for the given variable

Returns: the old value or null

rehash

protected void rehash()

Rehash the table

removeClearedEntries

protected void removeClearedEntries()

Removes the cleared entries.

size

public int size()

Returns the size of this table.

Copyright B) 2008 Apache Software Foundation. All Rights Reserved.