org.springframework.cache.support

Class AbstractCacheManager

java.lang.Object

org.springframework.cache.support.AbstractCacheManager

All Implemented Interfaces:

InitializingBean, CacheManager

Direct Known Subclasses:

AbstractTransactionSupportingCacheManager, SimpleCacheManager

public abstract class AbstractCacheManager
extends java.lang.Object
implements CacheManager, InitializingBean

Abstract base class implementing the common CacheManager methods. Useful for 'static' environments where the backing caches do not change.

Since:

3.1

Author:

Costin Leau, Juergen Hoeller, Stephane Nicoll

Constructor Summary

Constructors

Constructor and Description
AbstractCacheManager()

Method Summary

Modifier and Type	Method and Description
protected void	addCache(Cache cache) Deprecated. as of Spring 4.3, in favor of getMissingCache(String)
void	afterPropertiesSet() Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
protected Cache	decorateCache(Cache cache) Decorate the given Cache object if necessary.
Cache	getCache(java.lang.String name) Return the cache associated with the given name.
java.util.Collection<java.lang.String>	getCacheNames() Return a collection of the cache names known by this manager.
protected Cache	getMissingCache(java.lang.String name) Return a missing cache with the specified name or null if such cache does not exist or could not be created on the fly.
void	initializeCaches() Initialize the static configuration of caches.
protected abstract java.util.Collection<? extends Cache>	loadCaches() Load the initial caches for this cache manager.
protected Cache	lookupCache(java.lang.String name) Check for a registered cache of the given name.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCacheManager

public AbstractCacheManager()

Method Detail

afterPropertiesSet

public void afterPropertiesSet()

Description copied from interface: InitializingBean

Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).

This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.

Specified by:

afterPropertiesSet in interface InitializingBean

initializeCaches

public void initializeCaches()

Initialize the static configuration of caches.

Triggered on startup through afterPropertiesSet(); can also be called to re-initialize at runtime.

Since:

4.2.2

See Also:

loadCaches()

loadCaches

protected abstract java.util.Collection<? extends Cache> loadCaches()

Load the initial caches for this cache manager.

Called by afterPropertiesSet() on startup. The returned collection may be empty but must not be null.

getCache

@Nullable
public Cache getCache(java.lang.String name)

Description copied from interface: CacheManager

Return the cache associated with the given name.

Specified by:

getCache in interface CacheManager

Parameters:

name - the cache identifier (must not be null)

Returns:

the associated cache, or null if none found

getCacheNames

public java.util.Collection<java.lang.String> getCacheNames()

Description copied from interface: CacheManager

Return a collection of the cache names known by this manager.

Specified by:

getCacheNames in interface CacheManager

Returns:

the names of all caches known by the cache manager

lookupCache

@Nullable
protected final Cache lookupCache(java.lang.String name)

Check for a registered cache of the given name. In contrast to getCache(String), this method does not trigger the lazy creation of missing caches via getMissingCache(String).

Parameters:

name - the cache identifier (must not be null)

Returns:

the associated Cache instance, or null if none found

Since:

4.1

See Also:

getCache(String), getMissingCache(String)

addCache

@Deprecated
protected final void addCache(Cache cache)

Deprecated. as of Spring 4.3, in favor of getMissingCache(String)

Dynamically register an additional Cache with this manager.

Parameters:

cache - the Cache to register

decorateCache

protected Cache decorateCache(Cache cache)

Decorate the given Cache object if necessary.

Parameters:

cache - the Cache object to be added to this CacheManager

Returns:

the decorated Cache object to be used instead, or simply the passed-in Cache object by default

getMissingCache

@Nullable
protected Cache getMissingCache(java.lang.String name)

Return a missing cache with the specified name or null if such cache does not exist or could not be created on the fly.

Some caches may be created at runtime if the native provider supports it. If a lookup by name does not yield any result, a subclass gets a chance to register such a cache at runtime. The returned cache will be automatically added to this instance.

Parameters:

name - the name of the cache to retrieve

Returns:

the missing cache or null if no such cache exists or could be created

Since:

4.1

See Also:

getCache(String)