org.elasticsearch.common.util

Class ExtensionPoint.SelectedType<T>

java.lang.Object

org.elasticsearch.common.util.ExtensionPoint

org.elasticsearch.common.util.ExtensionPoint.ClassMap<T>

org.elasticsearch.common.util.ExtensionPoint.SelectedType<T>

Enclosing class:

ExtensionPoint

public static final class ExtensionPoint.SelectedType<T>
extends ExtensionPoint.ClassMap<T>

A Type extension point which basically allows to registerd keyed extensions like ExtensionPoint.ClassMap but doesn't instantiate and bind all the registered key value pairs but instead replace a singleton based on a given setting via bindType(Binder, Settings, String, String) Note: ExtensionPoint.bind(Binder) is not supported by this class

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.common.util.ExtensionPoint

ExtensionPoint.ClassMap<T>, ExtensionPoint.ClassSet<T>, ExtensionPoint.InstanceMap<K,V>, ExtensionPoint.SelectedType<T>

Field Summary

Fields inherited from class org.elasticsearch.common.util.ExtensionPoint.ClassMap

extensionClass

Fields inherited from class org.elasticsearch.common.util.ExtensionPoint

name, singletons

Constructor Summary

Constructors

Constructor and Description
ExtensionPoint.SelectedType(String name, Class<T> extensionClass)

Method Summary

Methods

Modifier and Type	Method and Description
String	bindType(Binder binder, Settings settings, String settingsKey, String defaultValue) Binds the extension class to the class that is registered for the give configured for the settings key in the settings object.

Methods inherited from class org.elasticsearch.common.util.ExtensionPoint.ClassMap

bindExtensions, getExtension, registerExtension

Methods inherited from class org.elasticsearch.common.util.ExtensionPoint

bind

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtensionPoint.SelectedType

public ExtensionPoint.SelectedType(String name,
                           Class<T> extensionClass)

Method Detail

bindType

public String bindType(Binder binder,
              Settings settings,
              String settingsKey,
              String defaultValue)

Binds the extension class to the class that is registered for the give configured for the settings key in the settings object.

Parameters:

binder - the binder to use

settings - the settings to look up the key to find the implementation to bind

settingsKey - the key to use with the settings

defaultValue - the default value if the settings do not contain the key, or null if there is no default

Returns:

the actual bound type key