/*
    * 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.schema;
  
  import java.util.Date;
  import java.util.Optional;
  
  /**
   * Opencast Dublin Core schema.
   * <p>
   * Fields may have at most <em>one</em> value and do <em>not</em> have any language annotation.
   * <p>
   * For more information about the exposed field see the
   * <a href="http://dublincore.org/documents/dcmi-type-vocabulary/#H2">DublinCore /terms/ namespace</a>.
   */
  public interface OcDublinCore {
    Optional<String> getAbstract();
  
    Optional<String> getAccessRights();
  
    Optional<String> getAccrualMethod();
  
    Optional<String> getAccrualPeriodicity();
  
    Optional<String> getAccrualPolicy();
  
    Optional<String> getAlternative();
  
    Optional<String> getAudience();
  
    Optional<String> getAvailable();
  
    Optional<String> getBibliographicCitation();
  
    Optional<String> getConformsTo();
  
    Optional<String> getContributor();
  
    Optional<String> getCoverage();
  
    Date getCreated();
  
    Optional<String> getCreator();
  
    Optional<Date> getDate();
  
    Optional<Date> getDateAccepted();
  
    Optional<Date> getDateCopyrighted();
  
    Optional<Date> getDateSubmitted();
  
    Optional<String> getDescription();
  
    Optional<String> getEducationLevel();
  
    Optional<Long> getExtent();
  
    Optional<String> getFormat();
  
    Optional<String> getHasFormat();
  
    Optional<String> getHasPart();
  
    Optional<String> getHasVersion();
  
    Optional<String> getIdentifier();
  
    Optional<String> getInstructionalMethod();
  
    Optional<String> getIsFormatOf();
  
    Optional<String> getIsPartOf();
  
    Optional<String> getIsReferencedBy();
  
    Optional<String> getIsReplacedBy();
  
    Optional<String> getIsRequiredBy();
  
   Optional<String> getIssued();
 
   Optional<String> getIsVersionOf();
 
   Optional<String> getLanguage();
 
   Optional<String> getLicense();
 
   Optional<String> getMediator();
 
   Optional<String> getMedium();
 
   Optional<String> getModified();
 
   Optional<String> getProvenance();
 
   Optional<String> getPublisher();
 
   Optional<String> getReferences();
 
   Optional<String> getRelation();
 
   Optional<String> getReplaces();
 
   Optional<String> getRequires();
 
   Optional<String> getRights();
 
   Optional<String> getRightsHolder();
 
   Optional<String> getSource();
 
   Optional<String> getSpatial();
 
   Optional<String> getSubject();
 
   Optional<String> getTableOfContents();
 
   Optional<String> getTemporal();
 
   String getTitle();
 
   Optional<String> getType();
 
   Optional<String> getValid();
 }