/*
    * Licensed to The Apereo Foundation under one or more contributor license
    * agreements. See the NOTICE file distributed with this work for additional
    * information regarding copyright ownership.
    *
    *
    * The Apereo Foundation licenses this file to you under the Educational
    * Community 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://opensource.org/licenses/ecl2.txt
   *
   * 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.opencastproject.list.impl;
  
  import org.opencastproject.list.api.ResourceListFilter;
  import org.opencastproject.list.api.ResourceListQuery;
  import org.opencastproject.util.data.Option;
  
  import java.util.Collections;
  import java.util.List;
  
  /**
   * ResourceListQuery that should result in an empty list after execution.
   */
  public class EmptyResourceListQuery implements ResourceListQuery {
    @Override
    public List<ResourceListFilter<?>> getFilters() {
      return Collections.emptyList();
    }
  
    @Override
    public List<ResourceListFilter<?>> getAvailableFilters() {
      return Collections.emptyList();
    }
  
    @Override
    public ResourceListFilter<?> getFilter(String name) {
      return null;
    }
  
    @Override
    public Option<Integer> getLimit() {
      return Option.some(0);
    }
  
    @Override
    public Option<Integer> getOffset() {
      return Option.none();
    }
  
    @Override
    public Option<String> getSortBy() {
      return Option.none();
    }
  
    @Override
    public Boolean hasFilter(String name) {
      return false;
    }
  }