Spring JPA Hibernate Embeddable(PK composite)

http://www.javabeat.net/embeddable-embedded-embeddedid-jpa-annotations/

http://uaihebert.com/tutorial-jpa-composite-primary-key/

http://ldg.pe.kr/framework_reference/hibernate_annotations/ver3.1beta3/html/entity.html

* Criteria 예시 블로그

http://antop.tistory.com/30

@Entity
@Getter
@Setter
@Table(name = "campaign")
@ToString( exclude = "mediaManagementEntity")
public class CampaignEntity implements Serializable {

  /**
   * serialVersionUID.
   */
  private static final long serialVersionUID = 1L;

  @Embeddable
  @Getter
  @Setter
  @EqualsAndHashCode
  public static class CampaignPK implements Serializable {

    /**
     * serialVersionUID.
     */
    private static final long serialVersionUID = 1L;

    /**
     * 캠페인 아이디.
     */
    private String campaignId;

    /** 미디어 아이디 ( 구글, 페이스북....). */
    private String mediaId;

  }

  @EmbeddedId
  private CampaignPK campaignPK;

  /**
   * 캠페인명.
   */
  private String campaignName;

  /**
   * 목표(캠페인 타입 : 동영상 / 배너 / 검색).
   */
  private String objective;

  /**
   * 지면 플랫폼 정보(유트브/검색/앱/페이스북/인스타/배너).
   */
  private String adNetworkType;

  /**
   * 상태 (유효/삭제/일시정지/보관).
   */
  private String status;

  /**
   * 생성시간.
   */
  private Date createdTime;

  /**
   * 시작일시.
   */
  private Date startTime;

  /**
   * 종료일시.
   */
  private Date endTime;


  ///////////////////////////////////////////
  //Association 설정
  ///////////////////////////////////////////

    /**
   * 미디어관리.
   */
  @ManyToOne(fetch = FetchType.LAZY)
  @JoinColumn(name="mediaId", insertable = false, updatable = false, referencedColumnName = "mediaId")
  private MediaManagementEntity mediaManagementEntity;


}