org.castor.cache.simple
Class CountLimited

java.lang.Object
  org.castor.cache.AbstractBaseCache
      org.castor.cache.simple.CountLimited

All Implemented Interfaces:

Cache, java.util.Map

public final class CountLimited

extends AbstractBaseCache

CountLimited is a count limted least-recently-used Map. Every object being put in the Map will live until the map is full. If the map is full, the least recently used object will be disposed.

The capacity is passed to the cache at initialization by the individual cache property capacity which defines the maximum number of objects the cache can hold. If not specified a default capacity of 30 objects will be used.

Version:

$Revision: 7121 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $

Author:

Thomas Yip, Werner Guttmann, Ralf Joachim

Nested Class Summary

Nested classes inherited from class java.util.Map

java.util.Map.Entry

Field Summary

static int	DEFAULT_CAPACITY Default capacity of cache.
static java.lang.String	PARAM_CAPACITY Mapped initialization parameter capacity.
static java.lang.String	TYPE The type of the cache.

Fields inherited from interface org.castor.cache.Cache

DEFAULT_DEBUG, DEFAULT_NAME, DEFAULT_TYPE, PARAM_DEBUG, PARAM_NAME, PARAM_TYPE

Constructor Summary

CountLimited()

Method Summary

void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
java.util.Set	entrySet()
java.lang.Object	get(java.lang.Object key)
int	getCapacity() Get real capacity of this cache.
java.lang.String	getType() Indicates the type of this cache.
void	initialize(java.util.Properties params) Lyfe-cycle method to allow custom initialization of cache implementations.
boolean	isEmpty()
java.util.Set	keySet()
java.lang.Object	put(java.lang.Object key, java.lang.Object value)
void	putAll(java.util.Map map)
java.lang.Object	remove(java.lang.Object key)
int	size()
java.util.Collection	values()

Methods inherited from class org.castor.cache.AbstractBaseCache

close, expire, expireAll, getName, invokeMethod, invokeStaticMethod

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

Field Detail

TYPE

public static final java.lang.String TYPE

The type of the cache.

See Also:

Constant Field Values

PARAM_CAPACITY

public static final java.lang.String PARAM_CAPACITY

Mapped initialization parameter capacity.

See Also:

Constant Field Values

DEFAULT_CAPACITY

public static final int DEFAULT_CAPACITY

Default capacity of cache.

See Also:

Constant Field Values

Constructor Detail

CountLimited

public CountLimited()

Method Detail

initialize

public void initialize(java.util.Properties params)
                throws CacheAcquireException

Lyfe-cycle method to allow custom initialization of cache implementations.

Specified by:

initialize in interface Cache

Overrides:

initialize in class AbstractBaseCache

Throws:

CacheAcquireException

See Also:

Cache.initialize(java.util.Properties)

getType

public java.lang.String getType()

Indicates the type of this cache.

Returns:

The cache type.

See Also:

Cache.getType()

getCapacity

public int getCapacity()

Get real capacity of this cache.

Returns:

Real capacity of this cache.

size

public int size()

See Also:

Map.size()

isEmpty

public boolean isEmpty()

See Also:

Map.isEmpty()

containsKey

public boolean containsKey(java.lang.Object key)

See Also:

Map.containsKey(java.lang.Object)

containsValue

public boolean containsValue(java.lang.Object value)

See Also:

Map.containsValue(java.lang.Object)

get

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

See Also:

Map.get(java.lang.Object)

put

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

See Also:

Map.put(java.lang.Object, java.lang.Object)

remove

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

See Also:

Map.remove(java.lang.Object)

putAll

public void putAll(java.util.Map map)

See Also:

Map.putAll(java.util.Map)

clear

public void clear()

See Also:

Map.clear()

keySet

public java.util.Set keySet()

See Also:

Map.keySet()

values

public java.util.Collection values()

See Also:

Map.values()

entrySet

public java.util.Set entrySet()

See Also:

Map.entrySet()