org.apache.dubbo.config.utils

Class ReferenceConfigCache

java.lang.Object

org.apache.dubbo.config.utils.ReferenceConfigCache

public class ReferenceConfigCache
extends Object

A simple util class for cache ReferenceConfigBase.

ReferenceConfigBase is a heavy Object, it's necessary to cache these object for the framework which create ReferenceConfigBase frequently.

You can implement and use your own ReferenceConfigBase cache if you need use complicate strategy.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ReferenceConfigCache.KeyGenerator

Field Summary

Fields

Modifier and Type	Field and Description
static ReferenceConfigCache.KeyGenerator	DEFAULT_KEY_GENERATOR Create the key with the Group, Interface and version attribute of ReferenceConfigBase.
static String	DEFAULT_NAME

Method Summary

Modifier and Type	Method and Description
void	destroy(Class<?> type)
<T> void	destroy(ReferenceConfigBase<T> referenceConfig) clear and destroy one ReferenceConfigBase in the cache.
void	destroy(String key, Class<?> type)
void	destroyAll() clear and destroy all ReferenceConfigBase in the cache.
<T> T	get(Class<T> type)
<T> T	get(ReferenceConfigBase<T> referenceConfig)
<T> T	get(String key)
<T> T	get(String key, Class<T> type) Fetch cache with the specified key.
<T> List<T>	getAll(Class<T> type)
static ReferenceConfigCache	getCache() Get the cache use default name and DEFAULT_KEY_GENERATOR to generate cache key.
static ReferenceConfigCache	getCache(String name) Get the cache use specified name and ReferenceConfigCache.KeyGenerator.
static ReferenceConfigCache	getCache(String name, ReferenceConfigCache.KeyGenerator keyGenerator) Get the cache use specified ReferenceConfigCache.KeyGenerator.
ConcurrentMap<Class<?>,ConcurrentMap<String,Object>>	getProxies()
ConcurrentMap<String,ReferenceConfigBase<?>>	getReferredReferences()
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DEFAULT_NAME

public static final String DEFAULT_NAME

See Also:

Constant Field Values

DEFAULT_KEY_GENERATOR

public static final ReferenceConfigCache.KeyGenerator DEFAULT_KEY_GENERATOR

Create the key with the Group, Interface and version attribute of ReferenceConfigBase.

key example: group1/org.apache.dubbo.foo.FooService:1.0.0.

Method Detail

getCache

public static ReferenceConfigCache getCache()

Get the cache use default name and DEFAULT_KEY_GENERATOR to generate cache key. Create cache if not existed yet.

getCache

public static ReferenceConfigCache getCache(String name)

Get the cache use specified name and ReferenceConfigCache.KeyGenerator. Create cache if not existed yet.

getCache

public static ReferenceConfigCache getCache(String name,
                                            ReferenceConfigCache.KeyGenerator keyGenerator)

Get the cache use specified ReferenceConfigCache.KeyGenerator. Create cache if not existed yet.

get

public <T> T get(ReferenceConfigBase<T> referenceConfig)

get

public <T> T get(String key,
                 Class<T> type)

Fetch cache with the specified key. The key is decided by KeyGenerator passed-in. If the default KeyGenerator is used, then the key is in the format of group/interfaceClass:version

Type Parameters:

T - object type

Parameters:

key - cache key

type - object class

Returns:

object from the cached ReferenceConfigBase

See Also:

ReferenceConfigCache.KeyGenerator.generateKey(ReferenceConfigBase)

get

public <T> T get(String key)

getAll

public <T> List<T> getAll(Class<T> type)

get

public <T> T get(Class<T> type)

destroy

public void destroy(String key,
                    Class<?> type)

destroy

public void destroy(Class<?> type)

destroy

public <T> void destroy(ReferenceConfigBase<T> referenceConfig)

clear and destroy one ReferenceConfigBase in the cache.

Parameters:

referenceConfig - use for create key.

destroyAll

public void destroyAll()

clear and destroy all ReferenceConfigBase in the cache.

getReferredReferences

public ConcurrentMap<String,ReferenceConfigBase<?>> getReferredReferences()

getProxies

public ConcurrentMap<Class<?>,ConcurrentMap<String,Object>> getProxies()

toString

public String toString()

Overrides:

toString in class Object