org.jruby.util.collections

Class WeakValuedMap<Key,Value>

java.lang.Object

org.jruby.util.collections.WeakValuedMap<Key,Value>

Direct Known Subclasses:

WeakValuedIdentityMap

public class WeakValuedMap<Key,Value>
extends Object

A Map that holds its values weakly and uses object identity for keys.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	WeakValuedMap.KeyedReference<Key,Value>

Constructor Summary

Constructors

Constructor and Description
WeakValuedMap()

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
Value	get(Key key)
protected Map<Key,WeakValuedMap.KeyedReference<Key,Value>>	newMap() Construct the backing store map for this WeakValuedMap.
void	put(Key key, Value value)
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

WeakValuedMap

public WeakValuedMap()

Method Detail

put

public void put(Key key,
       Value value)

get

public Value get(Key key)

clear

public void clear()

size

public int size()

newMap

protected Map<Key,WeakValuedMap.KeyedReference<Key,Value>> newMap()

Construct the backing store map for this WeakValuedMap. It should be capable of safe concurrent read and write.

Returns:

the backing store map