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.viewer.wicket.model.models.coll;
  
  import org.apache.causeway.applib.Identifier;
  import org.apache.causeway.commons.collections.Can;
  import org.apache.causeway.commons.internal.exceptions._Exceptions;
  import org.apache.causeway.core.metamodel.object.ManagedObject;
  import org.apache.causeway.core.metamodel.spec.feature.ObjectMember;
  import org.apache.causeway.core.metamodel.tabular.DataTableInteractive;
  import org.apache.causeway.viewer.wicket.model.models.ActionModel;
  
  record CollectionModelEmpty()
  implements CollectionModel {
  
      @Override
      public int getElementCount() {
          return 0;
      }
  
      @Override
      public String getName() {
          return "hidden";
      }
  
      @Override
      public ManagedObject getParentObject() {
          return ManagedObject.unspecified();
      }
  
      @Override
      public boolean isTableDataLoaded() {
          return true;
      }
  
      @Override
      public Can<ActionModel> getLinks() {
          return Can.empty();
      }
  
      @Override
      public DataTableInteractive getDataTableModel() {
          return getObject();
      }
  
      // -- NOT IMPLEMENTED
  
      @Override
      public DataTableInteractive getObject() {
          return null;
      }
  
      @Override
      public Identifier getIdentifier() {
          throw _Exceptions.notImplemented();
      }
  
      @Override
      public Variant getVariant() {
          throw _Exceptions.notImplemented();
      }
  
      @Override
      public ObjectMember getMetaModel() {
          throw _Exceptions.notImplemented();
      }
  
  }
  