/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.nuxeo.runtime.services.adapter;
/**
* An adapter factory defines behavioral extensions for
* one or more classes that implements the <code>Adaptable</code>
* interface. Adapter factories are registered with an
* adapter manager.
* <p>
* This interface can be used without OSGi running.
* <p>
* Clients may implement this interface.
*
* @see AdapterManager
* @see org.nuxeo.runtime.model.Adaptable
*/
public interface AdapterFactory {
/**
* Returns an object which is an instance of the given class
* associated with the given object. Returns <code>null</code> if
* no such object can be found.
*
* @param adaptableObject the adaptable object being queried
* (usually an instance of <code>IAdaptable</code>)
* @param adapterType the type of adapter to look up
* @return a object castable to the given adapter type,
* or <code>null</code> if this adapter factory
* does not have an adapter of the given type for the
* given object
*/
Object getAdapter(Object adaptableObject, Class adapterType);
/**
* Returns the collection of adapter types handled by this
* factory.
* <p>
* This method is generally used by an adapter manager
* to discover which adapter types are supported, in advance
* of dispatching any actual <code>getAdapter</code> requests.
*
* @return the collection of adapter types
*/
Class[] getAdapterList();
}