net.sf.eBus.client

Interface FeedStatusCallback<T extends IEFeed>

Type Parameters:

T - must be either ERequestFeed, ESubscribeFeed, or EPublishFeed.

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 FeedStatusCallback<T extends IEFeed>

An eBus client implementing either ESubscriber, EPublisher, or ERequestor is not required to override the matching feed status method ( ESubscriber.feedStatus(EFeedState, IESubscribeFeed), EPublisher.publishStatus(EFeedState, IEPublishFeed), or ERequestor.feedStatus(EFeedState, ERequestFeed)). Instead, a lambda expression implementing this interface may be used as the callback. This allows for tighter coupling between the status callback and the code for handling the callback.

Note: This must be done after opening a feed and before advertising or subscribing.

Author:

Charles W. Rapp

See Also:

EPublishFeed.statusCallback(FeedStatusCallback), ESubscribeFeed.statusCallback(FeedStatusCallback), ERequestFeed.statusCallback(FeedStatusCallback)

Method Summary

Modifier and Type	Method and Description
void	call(EFeedState feedState, T feed) eBus calls this method to inform the eBus client that the feed is either up or down.

Method Detail

call

void call(EFeedState feedState,
          T feed)

eBus calls this method to inform the eBus client that the feed is either up or down.

Parameters:

feedState - the subscription's new feed state.

feed - the status applies to this feed.