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.mandatory;
021
022import org.apache.isis.core.metamodel.facetapi.FacetHolder;
023
024/**
025 * Whether a property or a parameter is mandatory (not optional).
026 * 
027 * <p>
028 * For a mandatory property, the object cannot be saved/updated without the
029 * value being provided. For a mandatory parameter, the action cannot be invoked
030 * without the value being provided.
031 * 
032 * <p>
033 * In the standard Apache Isis Programming Model, specify mandatory by
034 * <i>omitting</i> the <tt>@Optional</tt> annotation.
035 */
036public class MandatoryFacetDefault extends MandatoryFacetAbstract {
037
038    public MandatoryFacetDefault(final FacetHolder holder) {
039        super(holder, Semantics.REQUIRED);
040    }
041
042
043}