org.apache.curator.x.discovery

Interface ServiceCache<T>

All Superinterfaces:

AutoCloseable, Closeable, InstanceProvider<T>, org.apache.curator.framework.listen.Listenable<ServiceCacheListener>

All Known Implementing Classes:

ServiceCacheImpl

public interface ServiceCache<T>
extends Closeable, org.apache.curator.framework.listen.Listenable<ServiceCacheListener>, InstanceProvider<T>

Method Summary

Modifier and Type	Method and Description
List<ServiceInstance<T>>	getInstances() Return the current list of instances.
void	start() The cache must be started before use

Methods inherited from interface java.io.Closeable

close

Methods inherited from interface org.apache.curator.framework.listen.Listenable

addListener, addListener, removeListener

Method Detail

getInstances

List<ServiceInstance<T>> getInstances()

Return the current list of instances. NOTE: there is no guarantee of freshness. This is merely the last known list of instances. However, the list is updated via a ZooKeeper watcher so it should be fresh within a window of a second or two.

Specified by:

getInstances in interface InstanceProvider<T>

Returns:

the list

start

void start()
    throws Exception

The cache must be started before use

Throws:

Exception - errors