Package org.apache.solr.core

Class PluginBag.PluginHolder<T>

java.lang.Object

org.apache.solr.core.PluginBag.PluginHolder<T>

All Implemented Interfaces:

AutoCloseable, Supplier<T>

Direct Known Subclasses:

PackagePluginHolder, PluginBag.LazyPluginHolder, UpdateRequestProcessorChain.LazyUpdateProcessorFactoryHolder

Enclosing class:

PluginBag<T>

public static class PluginBag.PluginHolder<T>
extends Object
implements Supplier<T>, AutoCloseable

An indirect reference to a plugin. It just wraps a plugin instance. subclasses may choose to lazily load the plugin

Field Summary

Fields

Modifier and Type	Field	Description
protected T	inst
protected final PluginInfo	pluginInfo

Constructor Summary

Constructors

Constructor	Description
PluginHolder(PluginInfo info)
PluginHolder(PluginInfo info, T inst)
PluginHolder(T inst, SolrConfig.SolrPluginInfo info)

Method Summary

Modifier and Type	Method	Description
void	close()
T	get()
String	getClassName()
Optional<T>	getInstance()
PluginInfo	getPluginInfo()
boolean	isLoaded()
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

inst

protected volatile T inst

pluginInfo

protected final PluginInfo pluginInfo

Constructor Details

PluginHolder

public PluginHolder(T inst,
 SolrConfig.SolrPluginInfo info)

PluginHolder

public PluginHolder(PluginInfo info)

PluginHolder

public PluginHolder(PluginInfo info,
 T inst)

Method Details

getInstance

public Optional<T> getInstance()

get

public T get()

Specified by:

get in interface Supplier<T>

isLoaded

public boolean isLoaded()

close

public void close()

Specified by:

close in interface AutoCloseable

getClassName

public String getClassName()

getPluginInfo

public PluginInfo getPluginInfo()

toString

public String toString()

Overrides:

toString in class Object