com.hazelcast.map.impl.querycache

Interface Registry<K,T>

Type Parameters:

K - the type of key for reaching an item from this registry.

T - the type of item to register.

All Known Implementing Classes:

MapListenerRegistry, MapPublisherRegistry, MapSubscriberRegistry, PartitionAccumulatorRegistry, PublisherRegistry, QueryCacheListenerRegistry, SubscriberRegistry

public interface Registry<K,T>

General contract to define any `id --> item` registration.

Method Summary

Modifier and Type	Method and Description
Map<K,T>	getAll() Returns map of all registered items in this registry.
T	getOrCreate(K id) Returns item if it exists in this registry or creates it.
T	getOrNull(K id) Returns item if it exists in this registry otherwise returns null.
T	remove(K id) Removes the registration from this registry.

Method Detail

getOrCreate

T getOrCreate(K id)

Returns item if it exists in this registry or creates it.

Parameters:

id - key for reaching the item from this registry.

Returns:

registered item.

getOrNull

T getOrNull(K id)

Returns item if it exists in this registry otherwise returns null.

Parameters:

id - key for reaching the item from this registry.

Returns:

registered item or null.

getAll

Map<K,T> getAll()

Returns map of all registered items in this registry.

Returns:

map of all registered items in this registry

remove

T remove(K id)

Removes the registration from this registry.

Parameters:

id - key for reaching the item from this registry.

Returns:

removed registry entry.