javax.persistence.GenerationType Java Examples

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

@Id
@Column(name = "INSTRUCTOR_ID", unique = true, nullable = false)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_INSTRUCTOR_ID")
@SequenceGenerator(name = "SEQ_INSTRUCTOR_ID", sequenceName = "SEQ_INSTRUCTOR_ID", allocationSize=1, initialValue=1)
public Integer getId() {
	return this.id;
}
 

/**
 * Gets the id.
 * 
 * @return the id
 */
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@JsonIgnore
public Long getId() {
	return id;
}
 

@Id
@Column(name = "CLASSES_ID", unique = true, nullable = false)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_CLASSES_ID")
@SequenceGenerator(name = "SEQ_CLASSES_ID", sequenceName = "SEQ_CLASSES_ID", allocationSize=1, initialValue=1)
public Integer getId() {
	return this.id;
}
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

@Id
@SequenceGenerator(name = "ID_SEQ")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "ID_SEQ")
@Column(name = "ID", nullable = false)
public Long getId() {
	return id;
}
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

@Id
@Column(name = "order_item_id")
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Override
public long getOrderItemId() {
    return super.getOrderItemId();
}
 

@Id
@Column(name = "ID", unique = true, nullable = false, length = 19)
@GeneratedValue(strategy = GenerationType.TABLE, generator = "table")
@GenericGenerator(name = "table", strategy = "org.hibernate.id.MultipleHiLoPerTableGenerator", parameters = {
		@Parameter(name = "max_lo", value = "5") })//增长级别为5，可根据并发级别适当调整
public Long getId() {
	return this.id;
}
 

@SuppressWarnings("ConstantConditions")
private static GenerationType interpretGenerationType(GeneratedValue generatedValueAnn) {
	if ( generatedValueAnn.strategy() == null ) {
		return GenerationType.AUTO;
	}

	return generatedValueAnn.strategy();
}
 

@Id
@Column(name = "order_id")
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Override
public long getOrderId() {
    return super.getOrderId();
}
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

/**
 * @return id to get
 */
@Id
@Column(name = "id")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "clust_seq")
@SequenceGenerator(name = "clust_seq", sequenceName = "suse_cluster_id_seq",
        allocationSize = 1)
public long getId() {
    return id;
}
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

/**
 * @return the id
 */
@Id
@Column(name = "id")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "imginfo_seq")
@SequenceGenerator(name = "imginfo_seq", sequenceName = "suse_imginfo_imgid_seq",
                   allocationSize = 1)
public Long getId() {
    return id;
}
 

/**
 * @return Returns the id.
 */
@Id
@Column(name = "id")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "nmsg_seq")
@SequenceGenerator(name = "nmsg_seq", sequenceName = "suse_notif_message_id_seq",
        allocationSize = 1)
public Long getId() {
    return id;
}
 

/**
 * Gets the id.
 *
 * @return id
 */
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "content_project_seq")
@SequenceGenerator(name = "content_project_seq", sequenceName = "suse_ct_project_seq", allocationSize = 1)
public Long getId() {
    return id;
}
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

/**
 * Gets the id.
 *
 * @return id
 */
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "content_prj_env_target_seq")
@SequenceGenerator(name = "content_prj_env_target_seq", sequenceName = "suse_ct_env_tgt_seq", allocationSize = 1)
public Long getId() {
    return id;
}
 

/**
 *方法: 取得java.lang.Integer
 *@return: java.lang.Integer  id
 */

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name ="ID",nullable=false,length=32)
public java.lang.Integer getId(){
	return this.id;
}
 

/**
* Gets the hjid.
*
* @return the hjid
*/
  @Id
  @Column(name = "HJID")
  @GeneratedValue(strategy = GenerationType.AUTO)
  public Long getHjid() {
      return hjid;
  }
 

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
public Integer getId() {
	return id;
}
 

/**
 * 由传入的实体的class构建TableMapper对象，构建好的对象存入缓存中，以后使用时直接从缓存中获取
 *
 * @param entityClass
 * @return TableMapper
 */
public static EntityMapper getEntityMapper(Class<?> entityClass) {

    synchronized (entityClass) {
        // 先从map中获取实体映射信息
        EntityMapper entityMapper = tableMapperCache.get(entityClass);

        // 如果存在直接返回
        if (entityMapper != null) {
            return entityMapper;
        }

        TableMapper tableMapper = getTableMapper(entityClass);

        //获取实体ID泛型
        Class<?> idClass = getIdClass(entityClass);

        // 获取实体字段列表
        List<Field> fields = getAllField(entityClass);
        // 全部列
        Set<ColumnMapper> columnMapperSet = new HashSet<ColumnMapper>();
        // 主键
        ColumnMapper idColumn = null;
        GenerationType idStrategy = null;

        for (Field field : fields) {

            // 排除字段
            if (field.isAnnotationPresent(Transient.class)) {
                continue;
            }
            ColumnMapper columnMapper = new ColumnMapper();

            // 数据库字段名
            String columnName = null;
            if (field.isAnnotationPresent(Column.class)) {
                Column column = field.getAnnotation(Column.class);
                columnName = column.name();
                columnMapper.setInsertable(column.insertable());
                columnMapper.setUpdatable(column.updatable());
            }
            // 如果为空，使用属性名并替换为下划线风格
            if (columnName == null || columnName.equals("")) {
                columnName = camelhumpToUnderline(field.getName());
            }

            columnMapper.setProperty(field.getName());
            columnMapper.setColumn(columnName);
            columnMapper.setJavaType(field.getType());

            // 是否主键
            if (field.isAnnotationPresent(Id.class)) {
                columnMapper.setId(true);
                if (field.isAnnotationPresent(GeneratedValue.class)) {
                    idStrategy = field.getAnnotation(GeneratedValue.class).strategy();
                }
                idColumn = columnMapper;
            }
            // 添加到所有字段映射信息
            columnMapperSet.add(columnMapper);

        }
        if (columnMapperSet.size() <= 0) {
            throw new RuntimeException("实体" + entityClass.getName() + "不存在映射字段");
        }
        if (idColumn == null) {
            throw new RuntimeException("实体" + entityClass.getName() + "不存在主键或者");
        }

        // 解析实体映射信息
        entityMapper = new EntityMapper();
        entityMapper.setTableMapper(tableMapper);
        entityMapper.setColumnsMapper(columnMapperSet);
        entityMapper.setIdClass(idClass);
        entityMapper.setIdColumn(idColumn);
        entityMapper.setIdStrategy(idStrategy);

        tableMapperCache.put(entityClass, entityMapper);

        return entityMapper;
    }
}
 

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
public String getId() {
    return this.id;
}
 

@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
public Integer getId() {
	return id;
}