Package com.gigaspaces.internal.utils.collections

Class ConcurrentSoftCache

java.lang.Object

com.j_spaces.jdbc.QueryCache

com.gigaspaces.internal.utils.collections.ConcurrentSoftCache

@Deprecated
public class ConcurrentSoftCache
extends QueryCache

Deprecated.

Since 10.1.0 - use ConcurrentBoundedSoftCache instead

Soft reference concurrent cache. It uses a ConcurrentHashMap and a soft reference for the values. An entry in a ConcurrentSoftCache will be removed on JVM memory shortage. A double-reference is used to store the values, so that the finalize() method can be used to remove the entry from cache when it is collected by the garbage collector. Note The entry will be removed even if there is a hard reference to it somewhere, since the double-reference is used.

Since:

5.1

Version:

1.0

Author:

anna

Field Summary

Fields

Modifier and Type	Field	Description
protected final ConcurrentHashMap<String,SoftReference<com.gigaspaces.internal.utils.collections.ConcurrentSoftCache.DoubleRef<String,Query>>>	_map	Deprecated.

Constructor Summary

Constructors

Constructor	Description
ConcurrentSoftCache()	Deprecated.

Method Summary

Modifier and Type	Method	Description
void	addQueryToCache(String statement, Query query)	Deprecated.
void	clear()	Deprecated.
Query	getQueryFromCache(String statement)	Deprecated.

Methods inherited from class com.j_spaces.jdbc.QueryCache

create

Methods inherited from class java.lang.Object

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

Field Details

_map

protected final ConcurrentHashMap<String,SoftReference<com.gigaspaces.internal.utils.collections.ConcurrentSoftCache.DoubleRef<String,Query>>> _map

Deprecated.

Constructor Details

ConcurrentSoftCache

public ConcurrentSoftCache()

Deprecated.

Method Details

addQueryToCache

public void addQueryToCache(String statement,
 Query query)

Deprecated.

Specified by:

addQueryToCache in class QueryCache

getQueryFromCache

public Query getQueryFromCache(String statement)

Deprecated.

Specified by:

getQueryFromCache in class QueryCache

clear

public void clear()

Deprecated.

Specified by:

clear in class QueryCache