Package org.apache.solr.core

Class DelegatingEventListener

java.lang.Object

org.apache.solr.core.DelegatingEventListener

All Implemented Interfaces:

SolrEventListener, NamedListInitializedPlugin

public class DelegatingEventListener
extends Object
implements SolrEventListener

A SolrEventListener wrapper that loads class from a package and reload if it's modified

Constructor Summary

Constructors

Constructor	Description
DelegatingEventListener(PackagePluginHolder<SolrEventListener> holder)

Method Summary

Modifier and Type	Method	Description
void	newSearcher(SolrIndexSearcher newSearcher, SolrIndexSearcher currentSearcher)	The searchers passed here are only guaranteed to be valid for the duration of this method call, so care should be taken not to spawn threads or asynchronous tasks with references to these searchers.
void	postCommit()
void	postSoftCommit()

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.util.plugin.NamedListInitializedPlugin

init

Constructor Detail

DelegatingEventListener

public DelegatingEventListener(PackagePluginHolder<SolrEventListener> holder)

Method Detail

postCommit

public void postCommit()

Specified by:

postCommit in interface SolrEventListener

postSoftCommit

public void postSoftCommit()

Specified by:

postSoftCommit in interface SolrEventListener

newSearcher

public void newSearcher(SolrIndexSearcher newSearcher,
                        SolrIndexSearcher currentSearcher)

Description copied from interface: SolrEventListener

The searchers passed here are only guaranteed to be valid for the duration of this method call, so care should be taken not to spawn threads or asynchronous tasks with references to these searchers.

Implementations should add the EventParams.EVENT parameter and set it to a value of either:

• EventParams.FIRST_SEARCHER - First Searcher event
• EventParams.NEW_SEARCHER - New Searcher event

Sample:

 if (currentSearcher != null) {
 nlst.add(CommonParams.EVENT, CommonParams.NEW_SEARCHER);
 } else {
 nlst.add(CommonParams.EVENT, CommonParams.FIRST_SEARCHER);
 }

 

Specified by:

newSearcher in interface SolrEventListener

Parameters:

newSearcher - The new SolrIndexSearcher to use

currentSearcher - The existing SolrIndexSearcher. null if this is a firstSearcher event.

See Also:

AbstractSolrEventListener.addEventParms(org.apache.solr.search.SolrIndexSearcher, org.apache.solr.common.util.NamedList)