org.springframework.data.gemfire

Interface GemfireCallback<T>

public interface GemfireCallback<T>

Callback interface for GemFire code. To be used with GemfireTemplate's execution methods, often as anonymous classes within a method implementation. A typical implementation will call Region.get/put/query to perform some operations on stored objects.

See Also:

Region

Method Summary

Modifier and Type	Method and Description
T	doInGemfire(Region<?,?> region) Gets called by GemfireTemplate.execute(GemfireCallback).

Method Detail

doInGemfire

T doInGemfire(Region<?,?> region)
       throws GemFireCheckedException,
              GemFireException

Gets called by GemfireTemplate.execute(GemfireCallback). Does not need to care about handling transactions or exceptions. Allows a result object created within the callback to be returned, i.e. a domain object or a collection of domain objects. A thrown custom RuntimeException is treated as an application exception: it gets propagated to the caller of the template.

Parameters:

region - the GemFire Cache Region upon which the operation of this callback will be performed.

Returns:

a result object, or null if no result.

Throws:

GemFireCheckedException - for checked Exceptions occurring in GemFire.

GemFireException - for runtime Exceptions occurring in GemFire.

See Also:

GemfireTemplate, Region