Package freemarker.cache

Class NullCacheStorage

java.lang.Object

freemarker.cache.NullCacheStorage

All Implemented Interfaces:

CacheStorage, CacheStorageWithGetSize, ConcurrentCacheStorage

public class NullCacheStorage
extends Object
implements ConcurrentCacheStorage, CacheStorageWithGetSize

A cache storage that doesn't store anything. Use this if you don't want caching.

Since:

2.3.17

See Also:

Configuration.setCacheStorage(CacheStorage)

Field Summary

Fields

Modifier and Type	Field	Description
static NullCacheStorage	INSTANCE

Constructor Summary

Constructors

Constructor	Description
NullCacheStorage()

Method Summary

Modifier and Type	Method	Description
void	clear()
Object	get(Object key)
int	getSize()	Always returns 0.
boolean	isConcurrent()	Returns true if this instance of cache storage is concurrently accessible from multiple threads without synchronization.
void	put(Object key, Object value)
void	remove(Object key)

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final NullCacheStorage INSTANCE

Since:

2.3.22

Constructor Details

NullCacheStorage

public NullCacheStorage()

Method Details

isConcurrent

public boolean isConcurrent()

Description copied from interface: ConcurrentCacheStorage

Returns true if this instance of cache storage is concurrently accessible from multiple threads without synchronization.

Specified by:

isConcurrent in interface ConcurrentCacheStorage

Returns:

true if this instance of cache storage is concurrently accessible from multiple threads without synchronization.

get

public Object get(Object key)

Specified by:

get in interface CacheStorage

put

public void put(Object key,
 Object value)

Specified by:

put in interface CacheStorage

remove

public void remove(Object key)

Specified by:

remove in interface CacheStorage

clear

public void clear()

Specified by:

clear in interface CacheStorage

getSize

public int getSize()

Always returns 0.

Specified by:

getSize in interface CacheStorageWithGetSize

Since:

2.3.21