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