content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   */
  package org.apache.causeway.core.metamodel.facets.propcoll.accessor;
  
  import org.jspecify.annotations.Nullable;
  
  import org.apache.causeway.core.config.CausewayConfiguration;
  import org.apache.causeway.core.metamodel.consent.InteractionInitiatedBy;
  import org.apache.causeway.core.metamodel.facetapi.Facet;
  import org.apache.causeway.core.metamodel.object.ManagedObject;
  import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
  
  /**
   * Provides access to an association, typically via a getter.
   */
  public interface PropertyOrCollectionAccessorFacet extends Facet {
  
      /**
       * Returns the (nullable) pojo value of this property or collection from given {@link ManagedObject}.
       * <p>
       * If enabled via {@link CausewayConfiguration causeway.core.meta-model.filter-visibility},
       * object(s) not visible to the current user will be excluded from the result.
       * <p>
       * That is, for a property {@code null} will be returned,
       * while for a collection, objects not visible, will be omitted from that collection.
       */
      @Nullable
      Object getAssociationValueAsPojo(
              ManagedObject inObject,
              InteractionInitiatedBy interactionInitiatedBy);
  
      ObjectSpecification getDeclaringType();
  }
  