org.castor.cache.hashbelt.container
Class FastIteratingContainer

java.lang.Object
  org.castor.cache.hashbelt.container.FastIteratingContainer

All Implemented Interfaces:

java.util.Map<java.lang.Object,java.lang.Object>, Container

public final class FastIteratingContainer
extends java.lang.Object
implements Container

The FastIteratingContainer implementation of the Container interface assuems two things:

• Puts and removes are rare in proportion to gets and iteration are common. Put and remove are much more expensive here than in MapContainer.
• Keys will not be reused (using a key twice with different values implicitly does an expensive remove).

In order for allow for removes and adds to be called while an iterator is in use, iterator-responses use cloned key/value lists.

Since:

1.0

Version:

$Revision: 8102 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $

Author:

Gregory Block, Ralf Joachim

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Constructor Summary

FastIteratingContainer()

Method Summary

void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
java.util.Set<java.util.Map.Entry<java.lang.Object,java.lang.Object>>	entrySet()
java.lang.Object	get(java.lang.Object key)
long	getTimestamp() Returns the timestamp of this container.
boolean	isEmpty()
java.util.Iterator<java.lang.Object>	keyIterator() Returns an iterator over the keys contained in this container.
java.util.Set<java.lang.Object>	keySet()
java.lang.Object	put(java.lang.Object key, java.lang.Object value)
void	putAll(java.util.Map<? extends java.lang.Object,? extends java.lang.Object> map)
java.lang.Object	remove(java.lang.Object key)
int	size()
void	updateTimestamp() Set the timestamp of this container to System.currentTimeMillis().
java.util.Iterator<java.lang.Object>	valueIterator() Returns an iterator over the values contained in this container.
java.util.Collection<java.lang.Object>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

FastIteratingContainer

public FastIteratingContainer()

Method Detail

updateTimestamp

public void updateTimestamp()

Set the timestamp of this container to System.currentTimeMillis().

Specified by:

updateTimestamp in interface Container

getTimestamp

public long getTimestamp()

Returns the timestamp of this container.

Specified by:

getTimestamp in interface Container

Returns:

The timestamp.

keyIterator

public java.util.Iterator<java.lang.Object> keyIterator()

Returns an iterator over the keys contained in this container. If the container is modified while an iteration is in progress, the results of the iteration is not affected and vice-versa.

Specified by:

keyIterator in interface Container

Returns:

An iterator over the keys currently contained in the container.

valueIterator

public java.util.Iterator<java.lang.Object> valueIterator()

Returns an iterator over the values contained in this container. If the container is modified while an iteration is in progress, the results of the iteration is not affected and vice-versa.

Specified by:

valueIterator in interface Container

Returns:

An iterator over the values currently contained in the container.

size

public int size()

Specified by:

size in interface java.util.Map<java.lang.Object,java.lang.Object>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<java.lang.Object,java.lang.Object>

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map<java.lang.Object,java.lang.Object>

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map<java.lang.Object,java.lang.Object>

get

public java.lang.Object get(java.lang.Object key)

Specified by:

get in interface java.util.Map<java.lang.Object,java.lang.Object>

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)

Specified by:

put in interface java.util.Map<java.lang.Object,java.lang.Object>

remove

public java.lang.Object remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<java.lang.Object,java.lang.Object>

putAll

public void putAll(java.util.Map<? extends java.lang.Object,? extends java.lang.Object> map)

Specified by:

putAll in interface java.util.Map<java.lang.Object,java.lang.Object>

clear

public void clear()

Specified by:

clear in interface java.util.Map<java.lang.Object,java.lang.Object>

keySet

public java.util.Set<java.lang.Object> keySet()

Specified by:

keySet in interface java.util.Map<java.lang.Object,java.lang.Object>

values

public java.util.Collection<java.lang.Object> values()

Specified by:

values in interface java.util.Map<java.lang.Object,java.lang.Object>

entrySet

public java.util.Set<java.util.Map.Entry<java.lang.Object,java.lang.Object>> entrySet()

Specified by:

entrySet in interface java.util.Map<java.lang.Object,java.lang.Object>