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.tabular.simple;
  
  import org.apache.causeway.applib.annotation.Where;
  import org.apache.causeway.commons.collections.Can;
  import org.apache.causeway.core.metamodel.consent.InteractionInitiatedBy;
  import org.apache.causeway.core.metamodel.object.ManagedObject;
  import org.apache.causeway.core.metamodel.object.ManagedObjects;
  
  import org.jspecify.annotations.NonNull;
  
  /**
   * Represents a single domain object (typically an entity instance)
   * and it's associated values as cell elements.
   *
   * @since 2.0 {@index}
   */
  public record DataRow(
      @NonNull ManagedObject rowElement) {
  
      /**
       * Can be none, one or many per table cell.
       */
      public Can<ManagedObject> getCellElements(
              final @NonNull DataColumn column,
              final InteractionInitiatedBy interactionInitiatedBy) {
          var assoc = column.metamodel();
          return assoc.getSpecialization().fold(
                  property-> Can.of(
                          // similar to ManagedProperty#reassessPropertyValue
                          property.isVisible(rowElement(), interactionInitiatedBy, Where.ALL_TABLES).isAllowed()
                                  ? property.get(rowElement(), interactionInitiatedBy)
                                  : ManagedObject.empty(property.getElementType())),
                  collection-> ManagedObjects.unpack(
                          collection.isVisible(rowElement(), interactionInitiatedBy, Where.ALL_TABLES).isAllowed()
                                  ? collection.get(rowElement(), interactionInitiatedBy)
                                  : null
                  ));
      }
  
  }
  