org.deegree.feature.persistence.cache
Class SimpleFeatureStoreCache

java.lang.Object
  org.deegree.feature.persistence.cache.SimpleFeatureStoreCache

All Implemented Interfaces:

FeatureStoreCache

public class SimpleFeatureStoreCache
extends Object
implements FeatureStoreCache

FeatureStoreCache that uses a Java's SoftReference as eviction strategy and allows to limit the maximum number of cached objects.

Version:

$Revision: 22192 $, $Date: 2010-01-25 20:00:06 +0100 (Mo, 25 Jan 2010) $

Author:

Markus Schneider, last edited by: $Author: mschneider $

See Also:

FeatureStore

Constructor Summary

SimpleFeatureStoreCache()
Creates a new SimpleFeatureStoreCache instance that allows to store a default number of entries.

SimpleFeatureStoreCache(int maxEntries)
Creates a new SimpleFeatureStoreCache instance that allows to store the specified number of entries.

Method Summary

void	add(GMLObject obj) Adds the given object to the cache.
void	clear() Clears the cache, removing all objects.
GMLObject	get(String id) Returns the object with the specified id (if it exists in the cache).
void	remove(String id) Removes the object with the specified id from the cache (if it exists).

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleFeatureStoreCache

public SimpleFeatureStoreCache()

Creates a new SimpleFeatureStoreCache instance that allows to store a default number of entries.

SimpleFeatureStoreCache

public SimpleFeatureStoreCache(int maxEntries)

Creates a new SimpleFeatureStoreCache instance that allows to store the specified number of entries.

Parameters:

maxEntries - maximum number of cached objects

Method Detail

get

public GMLObject get(String id)

Description copied from interface: FeatureStoreCache

Returns the object with the specified id (if it exists in the cache).

Specified by:

get in interface FeatureStoreCache

Parameters:

id - id of the object, must not be null

Returns:

the object with the specified id, or null if it is not present in the cache

add

public void add(GMLObject obj)

Description copied from interface: FeatureStoreCache

Adds the given object to the cache.

Specified by:

add in interface FeatureStoreCache

Parameters:

obj - object, must not be null

remove

public void remove(String id)

Description copied from interface: FeatureStoreCache

Removes the object with the specified id from the cache (if it exists).

Specified by:

remove in interface FeatureStoreCache

Parameters:

id - id of the object, must not be null

clear

public void clear()

Description copied from interface: FeatureStoreCache

Clears the cache, removing all objects.

Specified by:

clear in interface FeatureStoreCache