org.springframework.data.gemfire

Interface RegionResolver

All Known Implementing Classes:

AbstractCachingRegionResolver, BeanFactoryRegionResolver, ComposableRegionResolver, RegionServiceRegionResolver, SingleRegionRegionResolver

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface RegionResolver

The RegionResolver interface is a Strategy interface used to encapsulate different algorithms (Strategies) used to resolve a cache Region.

Since:

2.3.0

Author:

John Blum

See Also:

Region

Method Summary

Modifier and Type	Method and Description
default <K,V> org.apache.geode.cache.Region<K,V>	require(String regionName) Requires a Region resolved from the given name.
<K,V> org.apache.geode.cache.Region<K,V>	resolve(String regionName) Returns a Region resolved with the given name.

Method Detail

resolve

@Nullable
<K,V> org.apache.geode.cache.Region<K,V> resolve(@Nullable
                                                           String regionName)

Returns a Region resolved with the given name.

Type Parameters:

K - type of the Region key.

V - type of the Region value;

Parameters:

regionName - name of the Region to resolve; may be null.

Returns:

the resolved Region with the given name; may be null.

See Also:

Region, String

require

@NonNull
default <K,V> org.apache.geode.cache.Region<K,V> require(@NonNull
                                                                  String regionName)

Requires a Region resolved from the given name.

Type Parameters:

K - type of the Region key.

V - type of the Region value;

Parameters:

regionName - name of the Region to resolve; must not be null.

Returns:

the resolved Region with the given name; never null.

Throws:

IllegalStateException - if the resolved Region is null, i.e. does not exist.

See Also:

Region, String, resolve(String)