org.atmosphere.cpr
Interface BroadcasterCache<V,W>

Type Parameters:

V -

W -

All Known Implementing Classes:

BroadcasterCacheBase, BroadcasterConfig.DefaultBroadcasterCache, HeaderBroadcasterCache, SessionBroadcasterCache

public interface BroadcasterCache<V,W>

A BroadcasterCache is used to persist broadcasted Object Broadcaster.broadcast(Object). Disconnected clients can always retrieve message that were broadcasted during their "downtime". BroadcasterCache are useful when a the long polling technique is used and prevent application from loosing event between re-connection.

A BroadcasterCache can be configured by invoking BroadcasterConfig.setBroadcasterCache(BroadcasterCache)

Nested Class Summary

static class

BroadcasterCache.STRATEGY

Field Summary

static String

BROADCASTER_CACHE_TRACKER

Method Summary

void	addToCache(AtmosphereResource<V,W> r, Object e) Start tracking messages associated with AtmosphereResource from the cache
List<Object>	retrieveFromCache(AtmosphereResource<V,W> r) Retrieve messages associated with AtmosphereResource
void	start() Start
void	stop() Stop

Field Detail

BROADCASTER_CACHE_TRACKER

static final String BROADCASTER_CACHE_TRACKER

Method Detail

start

void start()

Start

stop

void stop()

Stop

addToCache

void addToCache(AtmosphereResource<V,W> r,
                Object e)

Start tracking messages associated with AtmosphereResource from the cache

Parameters:

r - AtmosphereResource

e - a broadcasted message.

retrieveFromCache

List<Object> retrieveFromCache(AtmosphereResource<V,W> r)

Retrieve messages associated with AtmosphereResource

Parameters:

r - AtmosphereResource

Returns:

a List of messages (String).