CMP Entity Beans / DB activity

Question

Hello everyone
I'm using BEA Weblogic ejbgen for generating entity bean implementations and interfaces.
When I use the finder methods defined in the home-interface, naturally an sql-query is performed to the predefined database.
When I use the set-methods in the remote interface, is an sql-update performed on each method-invocation? in other words, if the entity has a lot of fields, and each field is populated with a seperate set-method, there will be a lot of databse activity while performing this update on the entity?
I'm trying to analyze a system, and there is a lot of activity goin on. A lot of remote calls and even more entity-operations.
First, 60 000 remote method calls are performed in a row. These return certain id's that are used for finding entity objects and performing operations on them. Lucky me...
Thx.
Juha, SCJP
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Answer 1

Hello ,
Instead of exposing a get/set method for each arribute of your bean (corresponding to database table) expose only one object.
For example
public class CustomerBean implements javax.ejb.EntityBean{
private CustomerVO objCustomer;
private String customerName;
private String customerMail;
private String customerType;
public CustomerVO getCustomer(){
return this.objCustomer;
public void setCustomer(CustomerVO objCustomer){
this.objCustomer = objCustomer;
public void ejbStore(){
customerName = objCustomer.getName();
customerMail = objCustomer.getMail();
customerType = objCustomer.getType();
HTH
VJ