Datasources (in Websphere)

Question

Hi,
I am using a datasource to connect to a pool defined in my server (Websphere).
This is my code:
java.util.Hashtable env = new java.util.Hashtable();
env.put(Context.PROVIDER_URL, "iiop://192.168.23.10:900/");
env.put(Context.INITIAL_CONTEXT_FACTORY,"com.ibm.ejs.ns.jndi.CNInitialContextFactory");
Context ctx = new InitialContext(env);
ds = (DataSource) ctx.lookup("jdbc/"+myDsName);
java.sql.Connection lConn = ds.getConnection(myUid,myPwd);
This code is correct, and when i use it I obtain connections to a remote database pool defined in my websphere.
The problem is that, probably, I don't understand the datasource. I thought that the datasource is unique, and limit the number of connections created.
If I use this code from differents computers, It creates differents datasources. For example, If I define my datasource to manage 10 connections, two differents user running this code, can manage up to 10 connections. So, if I have n user running this code in their computers, there can be up to n*10 differents connection to the database.
What I want is a unique datasource that limits and manage the number of connection to the database.
How can I make this using JNDI and JDBC to connect to a remote datasource defined in my server (Websphere). Is this possible?
Best regards,
Damian

Answer 1

WebSphere handles your connection pooling but there is connection pooling
setting in the admin console(AE4.0) which have an idle time, the connection will
close till your idled time, But in websphere's suggested "best_practice.pdf"
it says close the connection as you finish using it, about the DataSource,
i dont think you need to worry about that, its just a linkage between database and your codes(JSP,Servlet...)
I have a question:
I'm using WebSphere and doing the same thing to get a
DataSource. I am also using a Connection Pool. That
being the case, I get a DataSource from JNDI, and then
get a Connection from the DataSource. I'm wondering,
since WebSphere is handling my connections, do I need
to release the connection when done? Do I close it? Do
I give it back or what? Just let it fall out of scope?
What do I do with the DataSource? There is no close()
method for DataSource.