title: Hibernate sequence generates non-continous values
body: <p>I am using a hibernate sequencegenerator to auto-generate unique values for my primary key column.The sample code is given below.</p>
  
  <pre><code>@Entity
  @Table(name = "REQUEST")
  @javax.persistence.SequenceGenerator(name = "REQ_SEQ", sequenceName = "REQUEST_SEQ")
  public class Request {
  /**
   * Unique id for this request
   */
  @Id
  @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "REQ_SEQ")
  @Column(name = "REQ_ID")
  private long requestId;
     //So on
  }
  </code></pre>
  
  <p>Everything works fine except the fact that the generated values are interleaved. For example it inserts values from 5000 to 5015(15 inserts) and then the 16th insert produces the value as 5100.Then it works fine for a few subsequent inserts and again the problem.
  I dont have any problem as long as the generated values are unique but just curious to know what could be causing this. FYI, I am using Oracle.</p>