DefaultClusterEventProducer (Solr 9.0.0 core API)

java.lang.Object
- org.apache.solr.cluster.events.ClusterEventProducerBase
- - org.apache.solr.cluster.events.impl.DefaultClusterEventProducer

All Implemented Interfaces:

Closeable, AutoCloseable, ClusterSingleton, ClusterEventProducer
```
public class DefaultClusterEventProducer
extends ClusterEventProducerBase
```
Implementation of ClusterEventProducer.
Implementation notes

For each cluster event relevant listeners are always invoked sequentially (not in parallel) and in arbitrary order. This means that if any listener blocks the processing other listeners may be invoked much later or not at all.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.solr.cloud.ClusterSingleton
  ClusterSingleton.State

Field Summary
- 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

DefaultClusterEventProducer(CoreContainer cc)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`
`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
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

- Constructor Detail
  - DefaultClusterEventProducer
```
public DefaultClusterEventProducer(CoreContainer cc)
```
- Method Detail
  - start
```
public void start()
```
    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.
  - getSupportedEventTypes
```
public Set<ClusterEvent.EventType> getSupportedEventTypes()
```
    Specified by:
    
    getSupportedEventTypes in class ClusterEventProducerBase
  - 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.
  - close
```
public void close()
           throws IOException
```
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
    
    Overrides:
    
    close in class ClusterEventProducerBase
    
    Throws:
    
    IOException