com.hazelcast.core

Interface Offloadable

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 Offloadable

Allows off-loading the processing unit implementing this interface to the specified or default Executor. Currently supported in:

• IMap.executeOnKey(Object, EntryProcessor)
• IMap.submitToKey(Object, EntryProcessor)

Field Summary

Fields

Modifier and Type	Field and Description
static String	NO_OFFLOADING Constant meaning that there will be no off-loading if returned from the getExecutorName() method.
static String	OFFLOADABLE_EXECUTOR Constant meaning that processing will be off-loaded to the default OFFLOADABLE_EXECUTOR executor.

Method Summary

Modifier and Type	Method and Description
String	getExecutorName() Returns the name of the executor to which the processing unit will be off-loaded.

Field Detail

NO_OFFLOADING

static final String NO_OFFLOADING

Constant meaning that there will be no off-loading if returned from the getExecutorName() method.

See Also:

Constant Field Values

OFFLOADABLE_EXECUTOR

static final String OFFLOADABLE_EXECUTOR

Constant meaning that processing will be off-loaded to the default OFFLOADABLE_EXECUTOR executor. if returned from the getExecutorName() method.

See Also:

ExecutionService.OFFLOADABLE_EXECUTOR, Constant Field Values

Method Detail

getExecutorName

String getExecutorName()

Returns the name of the executor to which the processing unit will be off-loaded. The return value equal to "hz:offloadable" indicates that the processing should off-loaded to the default ExecutionService.OFFLOADABLE_EXECUTOR. The return value equal to "no-offloading" indicates that the processing should not be off-loaded at all. The processing will be executed as if the processing-unit didn't implement the Offloadable interface. Other return values will lookup the executor with the returned value which can be configured in the Hazelcast configuration.

Returns:

the name of the executor to which the processing should be off-loaded.

See Also:

ExecutorConfig, Config.addExecutorConfig(ExecutorConfig)