Package net.solarnetwork.service

Class FallbackOptionalService<T>

java.lang.Object

net.solarnetwork.service.FallbackOptionalService<T>

Type Parameters:

T - the service type

All Implemented Interfaces:

OptionalService<T>

public class FallbackOptionalService<T>
extends Object
implements OptionalService<T>

Implementation of OptionalService using a collection of delegate optional services, returning the first available service when asked.

This can be useful when the an optional service should be used in preference to a completely independently configured default service.

Since:

1.59

Version:

1.0

Author:

matt

Nested Class Summary

Nested classes/interfaces inherited from interface net.solarnetwork.service.OptionalService

OptionalService.OptionalFilterableService<T>

Constructor Summary

Constructors

Constructor	Description
FallbackOptionalService(Collection<OptionalService<T>> services)	Constructor.

Method Summary

Modifier and Type	Method	Description
T	service()	Get the configured service, or null if none available.

Methods inherited from class java.lang.Object

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

Constructor Details

FallbackOptionalService

public FallbackOptionalService(Collection<OptionalService<T>> services)

Constructor.

Parameters:

services - the services to use

Method Details

service

public T service()

Description copied from interface: OptionalService

Get the configured service, or null if none available.

Specified by:

service in interface OptionalService<T>

Returns:

the service, or null