Applocking Error

Question

Hi All,
I want to do locking of a single row for table in databse using JDBC connection.
I am Using Stateless session bean for connection.
I am using following code for locking
Context initialContext = new InitialContext();
TableLocking locking = (TableLocking) initialContext.lookup(TableLocking.JNDI_NAME);
And Follwoing code for
public void lock(byte lifetime,
             Connection connection,
             String tableName,
             Map primaryKeys,
             char mode)
             throws LockException,
                  TechnicalLockException,
                  IllegalArgumentException;
I have added <b>applocking service</b> in my USED component of EJB project.
I am not getting any error at build time.
But at Runtime it is not able to find TableLocking class.
<b>java.lang.NoClassDefFoundError: com/sap/engine/services/applocking/TableLocking</b>
Do i need to add the dependency at some other place also ??
Or how do i access that class ??
Can any one give some input about this problem??
Thanks and Regards,
Shruti.

Answer 1

Hi Sridhar,
1)I have deployed EJB properly, My EAR is also deployed successfully. 
2)I the method
TableLocking locking = (TableLocking) initialContext.lookup(TableLocking.JNDI_NAME);
JNDI name of the Table Locking class is to be used, and in tutorial it is given that JNDI name is contained in the constant <b>TableLocking.JNDI_NAME</b>
So i don have to use JNDI name of the MyBean in any of the method, as i am exposing bean as WS and running the WS.
So i am not able to figure to out the Problem.
Thanks and Regards,
Shruti.