Sequences in toplink-Urgent!

Question

Hi,
I have a Database table which has a column whose value is to be automatically generated from a sequence called 'SEQ_PERSON_ID'.I gave the sequence name,table and id in the workbench but i am getting an error
internal Exception: java.sql.SQLException: ORA-00942: table or view does not exi
st
Error Code: 942
Call:UPDATE SEQUENCE SET SEQ_COUNT = SEQ_COUNT + 50 WHERE SEQ_NAME = 'SEQ_PERSON
_ID'
Please suggest as this is very urgent.

Answer 1

Hi i have included both code and project descriptor.
Please suggest.
CODE
public class test
     ServerSession aSession = null;
     public void login() {
// Get the session from session.xml
aSession = (ServerSession)SessionManager.getManager().getSession("TestSession");
System.out.println(aSession);
* This method is used to disconnect from the database
public void logout() {
aSession.logout();
* Main method
public static void main(String[] args) {
          test t = new test();
          t.login();
          UnitOfWork uow = t.getUnitofWork();
          Person p = new Person();
          Person clonetest = (Person)uow.registerObject(p);
          clonetest.setPersonid(31979);
          clonetest.setFirstname("vasubabu");
          clonetest.setLastname("bathina");
          clonetest.setGender("M");
          clonetest.setLastupdatedby("ABC");
          clonetest.setLastupdatedwhen(new java.util.Date());
          uow.commit();
     public UnitOfWork getUnitofWork() {
          return aSession.acquireUnitOfWork() ;
Project xml
<?xml version = '1.0' encoding = 'UTF-8'?>
<toplink:object-persistence xmlns:opm="http://xmlns.oracle.com/ias/xsds/opm" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:toplink="http://xmlns.oracle.com/ias/xsds/toplink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<opm:name>Test</opm:name>
<opm:class-mapping-descriptors>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>Person</opm:class>
<opm:alias>Person</opm:alias>
<opm:primary-key>
<opm:field table="PERSON" name="PERSON_ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events/>
<opm:querying/>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>firstname</opm:attribute-name>
<opm:get-method>getFirstname</opm:get-method>
<opm:set-method>setFirstname</opm:set-method>
<opm:field table="PERSON" name="FIRST_NAME" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>gender</opm:attribute-name>
<opm:get-method>getGender</opm:get-method>
<opm:set-method>setGender</opm:set-method>
<opm:field table="PERSON" name="GENDER" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>lastname</opm:attribute-name>
<opm:get-method>getLastname</opm:get-method>
<opm:set-method>setLastname</opm:set-method>
<opm:field table="PERSON" name="LAST_NAME" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>lastupdatedby</opm:attribute-name>
<opm:get-method>getLastupdatedby</opm:get-method>
<opm:set-method>setLastupdatedby</opm:set-method>
<opm:field table="PERSON" name="LAST_UPDATED_BY" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>lastupdatedwhen</opm:attribute-name>
<opm:get-method>getLastupdatedwhen</opm:get-method>
<opm:set-method>setLastupdatedwhen</opm:set-method>
<opm:field table="PERSON" name="LAST_UPDATED_WHEN" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>personid</opm:attribute-name>
<opm:get-method>getPersonid</opm:get-method>
<opm:set-method>setPersonid</opm:set-method>
<opm:field table="PERSON" name="PERSON_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:sequencing>
<toplink:sequence-name>seq_person_id</toplink:sequence-name>
<toplink:sequence-field table="PERSON" name="PERSON_ID" xsi:type="opm:column"/>
</toplink:sequencing>
<toplink:instantiation/>
<toplink:copying/>
<toplink:tables>
<toplink:table name="PERSON"/>
</toplink:tables>
</opm:class-mapping-descriptor>
</opm:class-mapping-descriptors>
<toplink:login xsi:type="database-login">
<toplink:platform-class>oracle.toplink.internal.databaseaccess.OraclePlatform</toplink:platform-class>
<toplink:user-name>citytime</toplink:user-name>
<toplink:password>9469F498BD56203FD481D5B2C4201C78</toplink:password>
<toplink:driver-class>oracle.jdbc.driver.OracleDriver</toplink:driver-class>
<toplink:connection-url>jdbc:oracle:thin:@derby:1524:ctfdeva1</toplink:connection-url>
<toplink:native-sequencing>true</toplink:native-sequencing>
</toplink:login>
</toplink:object-persistence>