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.facets.param.defaults;
021
022import java.util.List;
023
024import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
025import org.apache.isis.core.metamodel.facetapi.Facet;
026
027/**
028 * Obtain defaults for each of the parameters of the action.
029 * 
030 * <p>
031 * In the standard Apache Isis Programming Model, corresponds to invoking the
032 * <tt>defaultsNXxx(...)</tt> support method for an action (where N is the
033 * 0-based parameter number).
034 */
035public interface ActionParameterDefaultsFacet extends Facet {
036
037    public abstract Object getDefault(ObjectAdapter target, List<ObjectAdapter> parameters);
038}