org.apache.shardingsphere.spi.singleton

Class SingletonSPIRegistry

java.lang.Object

org.apache.shardingsphere.spi.singleton.SingletonSPIRegistry

public final class SingletonSPIRegistry
extends Object

Singleton SPI registry.

Constructor Summary

Constructors

Constructor and Description
SingletonSPIRegistry()

Method Summary

Modifier and Type	Method and Description
static <K,T extends SingletonSPI> Map<K,T>	getSingletonInstancesMap(Class<T> singletonSPIClass, Function<? super T,? extends K> keyMapper) Get singleton instances map.
static <T extends TypedSPI & SingletonSPI> Map<String,T>	getTypedSingletonInstancesMap(Class<T> singletonSPIClass) Get typed singleton instances map.

Methods inherited from class java.lang.Object

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

Constructor Detail

SingletonSPIRegistry

public SingletonSPIRegistry()

Method Detail

getSingletonInstancesMap

public static <K,T extends SingletonSPI> Map<K,T> getSingletonInstancesMap(Class<T> singletonSPIClass,
                                                                           Function<? super T,? extends K> keyMapper)

Get singleton instances map.

Type Parameters:

K - the output type of the key mapping function

T - the type of the input elements

Parameters:

singletonSPIClass - singleton SPI class

keyMapper - key mapper

Returns:

singleton instances map

getTypedSingletonInstancesMap

public static <T extends TypedSPI & SingletonSPI> Map<String,T> getTypedSingletonInstancesMap(Class<T> singletonSPIClass)

Get typed singleton instances map.

Notice: Map key is TypedSPI.getType(), it won't be converted to upper case or lower case. If type is case-insensitive, then try TypedSingletonSPIHolder.

Type Parameters:

T - the type of the input elements

Parameters:

singletonSPIClass - singleton SPI class

Returns:

singleton instances map