/*
* Copyright (C) 2013 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.container.context;
import javax.enterprise.context.ContextNotActiveException;
import javax.enterprise.context.spi.Context;
import javax.enterprise.context.spi.Contextual;
/**
* This interface defines all the additional methods needed to easily implement
* an AlterableContext
*
* @author <a href="mailto:nfilotto@exoplatform.com">Nicolas Filotto</a>
* @version $Id$
*
*/
public interface AdvancedContext<K> extends Context
{
/**
* Registers a new key to the context
* @param key the key to register
*/
void register(K key);
/**
* Unregisters a given key from the context
* @param key the key to unregister
*/
void unregister(K key);
/**
* Activates the current context using the given key within the context of the thread
* @param key the key to use to activate the context
*/
void activate(K key);
/**
* Deactivates the current context using the given key from the context of the thread
* @param key the key to use to deactivate the context
*/
void deactivate(K key);
/**
* <p>
* Destroy the existing contextual instance. If there is no existing instance, no action is taken.
* </p>
*
* @param contextual the contextual type
* @throws ContextNotActiveException if the context is not active
*/
void destroy(Contextual<?> contextual);
}