org.elasticsearch.common.util

Class ExtensionPoint.ClassSet<T>

java.lang.Object

org.elasticsearch.common.util.ExtensionPoint

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

Enclosing class:

ExtensionPoint

public static final class ExtensionPoint.ClassSet<T>
extends ExtensionPoint

A set based extension point which allows to register extended classes that might be used to chain additional functionality etc.

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

Modifier and Type	Field and Description
protected Class<T>	extensionClass

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

name, singletons

Constructor Summary

Constructors

Constructor and Description
ClassSet(String name, Class<T> extensionClass, Class<?>... singletons) Creates a new ExtensionPoint.ClassSet

Method Summary

Modifier and Type	Method and Description
protected void	bindExtensions(Binder binder) Subclasses can bind their type, map or set extensions here.
void	registerExtension(Class<? extends T> extension) Registers a new extension

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

Field Detail

extensionClass

protected final Class<T> extensionClass

Constructor Detail

ClassSet

public ClassSet(String name,
                Class<T> extensionClass,
                Class<?>... singletons)

Creates a new ExtensionPoint.ClassSet

Parameters:

name - the human readable underscore case name of the extension poing. This is used in error messages etc.

extensionClass - the base class that should be extended

singletons - a list of singletons to bind with this extension point - these are bound in ExtensionPoint.bind(Binder)

Method Detail

registerExtension

public final void registerExtension(Class<? extends T> extension)

Registers a new extension

Parameters:

extension - the extension to register

Throws:

IllegalArgumentException - iff the class is already registered

bindExtensions

protected final void bindExtensions(Binder binder)

Description copied from class: ExtensionPoint

Subclasses can bind their type, map or set extensions here.

Specified by:

bindExtensions in class ExtensionPoint