DDBItem and Author

A short page about the DDBItem and Author which input are stored, please add here if something missing

DDBItem class

public class DDBItem {
  
private int    maxResults;

  private String id;
  private String title;
  private String subtitle;
  private String imageUrl;
  private String media;
  private String category;
  private String type;

  //metadata
  private ArrayList<Author> authors = null;
  private String institution = null;
  private Calendar publishedYear = null;
 
  /**
   * Creates a new DDBItem.
   *
   * @param id item ID in the DDB database
   */
  public DDBItem(String id) {
    this.id = id;
    this.authors = new ArrayList<Author>();
  }

Author class

public class Author {

    private final String dnbId;
  private String name;
  private Calendar dateOfBirth = null;
  private String placeOfBirth;
  private Calendar dateOfDeath = null;
  private String nationality;

  /**
   * Creates an Author.
   *
   * @param dnbId the ID assigned to the author by the DNB
   */
  public Author(String dnbId) {
    this.dnbId = dnbId;
  }