org.red5.cache

Interface ICacheStore

All Known Implementing Classes:

CacheImpl, EhCacheImpl, NoCacheImpl

public interface ICacheStore

Storage for cacheable objects. Selected cache engines must implement this interface.

Author:

The Red5 Project, Paul Gregoire (mondain@gmail.com)

See Also:

Soft references provide for quick-and-dirty caching, Reference Objects and Garbage Collection, Top Ten New Things You Can Do with NIO, Proxy Cache Solution

Method Summary

Modifier and Type	Method and Description
void	destroy() Allows for cleanup of a cache implementation.
ICacheable	get(String name) Return a cached object with the given name.
Iterator<String>	getObjectNames() Return iterator over the names of all already loaded objects in the storage.
Iterator<SoftReference<? extends ICacheable>>	getObjects() Return iterator over the already loaded objects in the storage.
boolean	offer(String name, Object obj) Offer an object to the cache with an associated key.
void	put(String name, Object obj) Puts an object in the cache with the associated key.
boolean	remove(ICacheable obj) Delete the passed cached object.
boolean	remove(String name) Delete the cached object with the given name.
void	setMaxEntries(int max) Sets the maximum number of entries for the cache.

Method Detail

offer

boolean offer(String name,
              Object obj)

Offer an object to the cache with an associated key. If the named object exists in cache, it will not be accepted.

Parameters:

name - string name representing the object

obj - cacheable object

Returns:

true if accepted, false otherwise

put

void put(String name,
         Object obj)

Puts an object in the cache with the associated key.

Parameters:

name - string name representing the object

obj - cacheable object

get

ICacheable get(String name)

Return a cached object with the given name.

Parameters:

name - the name of the object to return

Returns:

the object or null if no such object was found

remove

boolean remove(ICacheable obj)

Delete the passed cached object.

Parameters:

obj - the object to delete

Returns:

true if was removed; false it wasn't in cache to begin with

remove

boolean remove(String name)

Delete the cached object with the given name.

Parameters:

name - the name of the object to delete

Returns:

true if was removed; false it wasn't in cache to begin with

getObjectNames

Iterator<String> getObjectNames()

Return iterator over the names of all already loaded objects in the storage.

Returns:

iterator over all objects names

getObjects

Iterator<SoftReference<? extends ICacheable>> getObjects()

Return iterator over the already loaded objects in the storage.

Returns:

iterator over all objects

setMaxEntries

void setMaxEntries(int max)

Sets the maximum number of entries for the cache.

Parameters:

max - upper-limit of the cache

destroy

void destroy()

Allows for cleanup of a cache implementation.