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    
020    package org.apache.isis.core.progmodel.facets.properties.defaults.fromtype;
021    
022    import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
023    import org.apache.isis.core.metamodel.adapter.map.AdapterMap;
024    import org.apache.isis.core.metamodel.facetapi.FacetAbstract;
025    import org.apache.isis.core.metamodel.facetapi.FacetHolder;
026    import org.apache.isis.core.metamodel.facets.properties.defaults.PropertyDefaultFacet;
027    import org.apache.isis.core.progmodel.facets.object.defaults.DefaultedFacet;
028    
029    public class PropertyDefaultFacetDerivedFromDefaultedFacet extends FacetAbstract implements PropertyDefaultFacet {
030    
031        private final DefaultedFacet typeFacet;
032        private final AdapterMap adapterMap;
033    
034        public PropertyDefaultFacetDerivedFromDefaultedFacet(final DefaultedFacet typeFacet, final FacetHolder holder,
035            final AdapterMap adapterManager) {
036            super(PropertyDefaultFacet.class, holder, false);
037            this.typeFacet = typeFacet;
038            this.adapterMap = adapterManager;
039        }
040    
041        @Override
042        public ObjectAdapter getDefault(final ObjectAdapter inObject) {
043            if (getIdentified() == null) {
044                return null;
045            }
046            final Object typeFacetDefault = typeFacet.getDefault();
047            if (typeFacetDefault == null) {
048                return null;
049            }
050            return getAdapterMap().adapterFor(typeFacetDefault);
051        }
052    
053        // /////////////////////////////////////////////////////
054        // Dependencies (from constructor)
055        // /////////////////////////////////////////////////////
056    
057        public AdapterMap getAdapterMap() {
058            return adapterMap;
059        }
060    
061    }