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.spec;
021
022import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
023
024/**
025 * Represents an instance of some element of the meta-model.
026 * 
027 * <p>
028 * Currently the only sub-interface is {@link ObjectAdapter}. However, the
029 * intention is for associations, actions and action parameters to also inherit
030 * from this interface.
031 */
032public interface Instance {
033
034    /**
035     * Returns the specification that details the structure of this instance.
036     */
037    Specification getSpecification();
038
039
040}