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.collections.disabled.fromimmutable;
021    
022    import org.apache.isis.core.metamodel.facetapi.FacetUtil;
023    import org.apache.isis.core.metamodel.facetapi.FeatureType;
024    import org.apache.isis.core.metamodel.facets.AnnotationBasedFacetFactoryAbstract;
025    import org.apache.isis.core.metamodel.facets.FacetFactory;
026    import org.apache.isis.core.metamodel.facets.FacetedMethod;
027    import org.apache.isis.core.metamodel.facets.object.immutable.ImmutableFacet;
028    import org.apache.isis.core.metamodel.spec.ObjectSpecification;
029    
030    /**
031     * REVIEW: I'm not sure this {@link FacetFactory} actually makes sense. Just because a type is immutable, doesn't imply
032     * that the property can't change the instance that it refers to?
033     */
034    public class DisabledFacetForCollectionDerivedFromImmutableTypeFacetFactory extends AnnotationBasedFacetFactoryAbstract {
035    
036        public DisabledFacetForCollectionDerivedFromImmutableTypeFacetFactory() {
037            super(FeatureType.COLLECTIONS_ONLY);
038        }
039    
040        @Override
041        public void process(final ProcessMethodContext processMethodContext) {
042            final ObjectSpecification spec =
043                getSpecificationLookup().loadSpecification(processMethodContext.getMethod().getDeclaringClass());
044            if (spec.containsDoOpFacet(ImmutableFacet.class)) {
045                final ImmutableFacet immutableFacet = spec.getFacet(ImmutableFacet.class);
046                final FacetedMethod facetHolder = processMethodContext.getFacetHolder();
047                FacetUtil.addFacet(new DisabledFacetForCollectionDerivedFromImmutable(immutableFacet, facetHolder));
048            }
049        }
050    
051    }