org.elasticsearch.common.util

Class ExtensionPoint.InstanceMap<K,V>

java.lang.Object

org.elasticsearch.common.util.ExtensionPoint

org.elasticsearch.common.util.ExtensionPoint.InstanceMap<K,V>

Enclosing class:

ExtensionPoint

public static final class ExtensionPoint.InstanceMap<K,V>
extends ExtensionPoint

A an instance of a map, mapping one instance value to another. Both key and value are instances, not classes like with other extension points.

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

name, singletons

Constructor Summary

Constructors

Constructor and Description
InstanceMap(java.lang.String name, java.lang.Class<K> keyType, java.lang.Class<V> valueType, java.lang.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(K key, V value) Registers a mapping from key to value

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

InstanceMap

public InstanceMap(java.lang.String name,
                   java.lang.Class<K> keyType,
                   java.lang.Class<V> valueType,
                   java.lang.Class<?>... singletons)

Creates a new ExtensionPoint.ClassSet

Parameters:

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

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(K key,
                                    V value)

Registers a mapping from key to value

Throws:

java.lang.IllegalArgumentException - iff the key is already registered

bindExtensions

protected 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