Oracle sequence values not expected

Vaadin 6 / 7 / 8 Framework Data Binding
1

I have a Oracle sequence

create sequence S_MEETINGNO
minvalue 1
maxvalue 9999999999999999999999999999
start with 220
increment by 1
cache 20;

I am using JPA. The sequence is set in my entity class as follows:-

@Id
@SequenceGenerator(name=“MEETING_MEETINGNO_GENERATOR”, sequenceName=“S_MEETINGNO”)
@GeneratedValue(strategy=GenerationType.SEQUENCE, generator=“MEETING_MEETINGNO_GENERATOR”)
private long meetingno;

When i insert a new row, the value does not appear to be the next in the sequence (last attempt returned a value of 167).

      Meeting m = new Meeting("<Enter Meeting Name>", "<Enter Meeting Description>", "<Enter location>", null, fromDate, toDate, "Blue", user.getUserno(), "<Enter Meeting Notes>", null);
                    
        Object itemId = meetings.addEntity(m);            
        EntityItem <Meeting> meetingEntityItem = meetings.getItem(itemId);            
        this.myMeetingNo = (Long) meetingEntityItem.getItemId(); // get the new meeting number

Any ideas?

2

It was the ‘cache’ parameter that was casuing the server to grab the next 20 numbers. I will have to investigate the options about setting this up correctly.