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 */
019package org.apache.causeway.persistence.jdo.integration.metamodel;
020
021import java.util.function.Predicate;
022
023import javax.jdo.annotations.PrimaryKey;
024
025import org.apache.causeway.core.metamodel.facets.propcoll.accessor.PropertyOrCollectionAccessorFacet;
026import org.apache.causeway.core.metamodel.facets.properties.update.modify.PropertySetterFacet;
027import org.apache.causeway.core.metamodel.spec.feature.ObjectAssociation;
028import org.apache.causeway.core.metamodel.spec.feature.OneToOneAssociation;
029import org.apache.causeway.persistence.jdo.provider.metamodel.facets.prop.primarykey.JdoPrimaryKeyFacet;
030
031/**
032 * Use to locate the property annotated with {@link PrimaryKey}.
033 * <p>
034 * In addition, must also be a {@link OneToOneAssociation}, and can be
035 * {@link PropertyOrCollectionAccessorFacet read}.
036 * <p>
037 * Note that it is NOT necessary for there to be a facet to
038 * {@link PropertySetterFacet set} the property.
039 */
040public final class JdoPrimaryKeyPropertyPredicate implements Predicate<ObjectAssociation> {
041    @Override
042    public boolean test(final ObjectAssociation noa) {
043        return noa.isOneToOneAssociation() &&
044                noa.containsFacet(JdoPrimaryKeyFacet.class) &&
045                noa.containsFacet(PropertyOrCollectionAccessorFacet.class);
046    }
047}