• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Differences between Connection Pool managers in Weblogic 6.0

 
Greenhorn
Posts: 2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I'm trying to understand the difference between two ways to get a connection from a Weblogic 6.0 connection pool. I've come across two different ways that we can get a connection from a pool (after it's been created thru the console).
1. Have a connection pool manager with a getConnection method that uses the following code:
Connection conn = null;
Driver myDriver =(Driver)Class.forName("weblogic.jdbc.pool.Driver").newInstance();
Properties props = new Properties();
props.put("connectionPoolID","PoolName");
conn = myDriver.connect("jdbc:weblogic :pool", props);

2. Using JNDI and providing a URL (such as PROVIDER_URL below) for the machine the connection pool is on. The following code could be used in a connection pool manager class too:
Context ctx = null;
Hashtable ht = new Hashtable();
ht.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
ht.put(Context.PROVIDER_URL,"t3://hostname :port");
try {
ctx = new InitialContext(ht);
javax.sql.DataSource ds =(javax.sql.DataSource) ctx.lookup("myJtsDataSource");
java.sql.Connection conn = ds.getConnection();
} catch (Exception ex) {}

Is either method preferable to the other? Or does it not matter?
Are there better methods?
Thanks for your time
Owen

[This message has been edited by Owen Nishimura (edited August 01, 2001).]
 
Ranch Hand
Posts: 977
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
hmmm!
just sharing some thoughts.
Let�s suppose that some day you want to use your ejb�s with some different DB from different vendor, if you got the connection from the first way you post you�re gonna have to change the code from your EJB ok, now if you use DataSource all you need is binding the dataSource environment with the new connection pool you�ve just created and dont need to change anything in your code.
And if you have CMP you don�t even need to use code inside your EJB to get a connection all you have do to is bind your dataSource with your ejb at the weblogic-cmp-rdbms.jar
as I said just my considerations I�d love to hear more opinions about that.
 
I'm full of tinier men! And a tiny ad:
a bit of art, as a gift, the permaculture playing cards
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic