org.nuxeo.ecm.webengine.app.impl
Class SuperKeyedRegistry<K,V>

java.lang.Object
  org.nuxeo.ecm.webengine.app.impl.SuperKeyedRegistry<K,V>

Direct Known Subclasses:

ClassRegistry, TypeRegistry

public abstract class SuperKeyedRegistry<K,V>
extends java.lang.Object

A registry which inherits values from super keys.

The super key relation is defined by the derived classes by overriding getSuperKey(Object) method. The registry is thread safe and is optimized for lookups. A concurrent cache is dynamically updated when a value is retrieved from a super entry. The cache is removed each time a modification is made on the registry using put(Object, Object) or remove(Object) methods. Thus, for maximum performance you need to avoid modifying the registry after lookups were done: at application startup build the registry, at runtime perform lookups, at shutdown remove entries. The root key is passed in the constructor and is used to stop looking in super entries.

Author:

Bogdan Stefanescu

Constructor Summary

SuperKeyedRegistry(K root)

Method Summary

V	get(K key)
void	put(K key, V value)
V	remove(K key)

Methods inherited from class java.lang.Object

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

Constructor Detail

SuperKeyedRegistry

public SuperKeyedRegistry(K root)

Method Detail

put

public void put(K key,
                V value)

remove

public V remove(K key)

get

public V get(K key)