001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.metamodel.facetapi;
021
022/**
023 * A Class that provides multiple facet implementations, either directly or
024 * through a delegate.
025 * 
026 * <p>
027 * The client of this interface should use {@link #getFacet(Class)} to obtain
028 * the facet implementation for each of the {@link #facetTypes() facets types}.
029 */
030public interface MultiTypedFacet extends Facet {
031
032    /**
033     * All of the facet types either implemented or available by this facet
034     * implementation.
035     * 
036     */
037    public Class<? extends Facet>[] facetTypes();
038
039    public <T extends Facet> T getFacet(Class<T> facet);
040}