Package org.apache.solr.cluster.events

Class NoOpProducer

java.lang.Object

org.apache.solr.cluster.events.ClusterEventProducerBase

org.apache.solr.cluster.events.NoOpProducer

All Implemented Interfaces:

Closeable, AutoCloseable, ClusterSingleton, ClusterEventProducer

public final class NoOpProducer
extends ClusterEventProducerBase

No-op implementation of ClusterEventProducer. This implementation doesn't generate any events.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.solr.cloud.ClusterSingleton

ClusterSingleton.State

Field Summary

Fields

Modifier and Type	Field	Description
static final Set<ClusterEvent.EventType>	ALL_EVENT_TYPES

Fields inherited from class org.apache.solr.cluster.events.ClusterEventProducerBase

cc, listeners, state

Fields inherited from interface org.apache.solr.cluster.events.ClusterEventProducer

PLUGIN_NAME

Constructor Summary

Constructors

Constructor	Description
NoOpProducer(CoreContainer cc)

Method Summary

Modifier and Type	Method	Description
Set<ClusterEvent.EventType>	getSupportedEventTypes()
void	start()	Start the operation of the component.
void	stop()	Stop the operation of the component.

Methods inherited from class org.apache.solr.cluster.events.ClusterEventProducerBase

close, fireEvent, getState, registerListener, unregisterListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.cluster.events.ClusterEventProducer

getName, unregisterListener

Field Details

ALL_EVENT_TYPES

public static final Set<ClusterEvent.EventType> ALL_EVENT_TYPES

Constructor Details

NoOpProducer

public NoOpProducer(CoreContainer cc)

Method Details

getSupportedEventTypes

public Set<ClusterEvent.EventType> getSupportedEventTypes()

Specified by:

getSupportedEventTypes in class ClusterEventProducerBase

start

public void start()
           throws Exception

Description copied from interface: ClusterSingleton

Start the operation of the component. Initially this method should set the state to STARTING, and on success it should set the state to RUNNING.

Throws:

Exception - on startup errors. The component should revert to the STOPPED state.

stop

public void stop()

Description copied from interface: ClusterSingleton

Stop the operation of the component. Initially this method should set the state to STOPPING, and on return it should set the state to STOPPED. Components should also avoid holding any resource when in STOPPED state.