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.object;
  
  import org.jspecify.annotations.Nullable;
  
  import org.apache.causeway.applib.services.bookmark.Bookmark;
  import org.apache.causeway.applib.services.hint.HintIdProvider;
  
  import org.jspecify.annotations.NonNull;
  import lombok.experimental.UtilityClass;
  
  @UtilityClass
  public class MmHintUtils {
  
      public String hintId(final @Nullable ManagedObject adapter) {
          if(ManagedObjects.isNullOrUnspecifiedOrEmpty(adapter)) return null;
          var spec = adapter.objSpec();
          return (spec.isIdentifiable() || spec.isParented())
                  && adapter.getPojo() instanceof HintIdProvider hp
               ? hp.hintId()
               : null;
      }
  
      public Bookmark bookmarkElseFail(final @NonNull ManagedObject adapter) {
          var hintId = hintId(adapter);
          var bookmark = ManagedObjects.bookmarkElseFail(adapter);
          return hintId != null
                      ? bookmark.withHintId(hintId)
                      : bookmark;
      }
  }
  