java left logo
java middle logo
java right logo
 

Home arrow Java EE Tips arrow Enterprise Java Beans arrow Tip to improve performance of Entity Beans using dirty flag
 
 
Main Menu
Home
Java Tutorials
Book Reviews
Java SE Tips
Java ME Tips
Java EE Tips
Other API Tips
Java Applications
Java Libraries
Java Games
Java Network
Java Forums
Java Blog




Most Visited Tips
Java SE Tips
Java ME Tips
Java EE Tips
Other API Tips
Java Applications
Java Libraries
Java Games
Book Reviews
Top Rated Tips
Java SE Tips
Java ME Tips
Java EE Tips
Other API Tips
Java Applications
Java Libraries
Java Games
Book Reviews


Statistics
Registered Users: 4093
Java SE Tips: 614
Java ME Tips: 202
Java EE Tips: 183
Other API Tips: 779
Java Applications: 298
Java Libraries: 209
Java Games: 16
Book Reviews:
 
 
 
Tip to improve performance of Entity Beans using dirty flag E-mail
User Rating: / 0
PoorBest 

EJB Container calls ejbStore method when any business method execution completes or when any transaction completes irrespective of change in the bean's data. The entity bean's data may not change every time when the client calls the business method. So there will be lot of updates (calls to ejbStore ()) in database even though it is not required, resulting in poor performance. To solve this problem configure dirty flag property in vendor specific deployment descriptor file for CMP 1.1, for example is-modified-method-name in web logic server's weblogic-ejb-jar.xml file. For EJB2.0 CMP, it does not require to configure because EJB2.0 CMP Container supports this feature implicitly. For BMP, you have to write this method in bean's class and call this method wherever necessary. Thus calls to the database server is reduced unless the bean's data changes, improving performance.


 Related Tips

 
< Prev   Next >

Page 1 of 0 ( 0 comments )

You can share your information about this topic using the form below!

Please do not post your questions with this form! Thanks.


Name (required)


E-Mail (required)

Your email will not be displayed on the site - only to our administrator
Homepage(optional)



Comment Enable HTML code : Yes No



 
       
         
     
 
 
 
   
 
 
java bottom left
java bottom middle
java bottom right
RSS 0.91 FeedRSS 1.0 FeedRSS 2.0 FeedATOM FeedOPML Feed

Home - About Us - Privacy Policy
Copyright 2005 - 2008 www.java-tips.org
Java is a trademark of Sun Microsystems, Inc.