Connection Pooling doubts..

Google

Mailing List

Home

Forum Home

JBoss - Java Application Server

Struts - A MVC web framework

Tomcat - JSP/Servlet container

iText - An open source PDF Java Library

JDOM - JDOM XML Parser

J2EE - A mailing list for Java(tm) 2 Platform, Enterprise Edition

J2EE Pattern - An interest list for Sun Java Center J2EE Pattern Catalog

Servlet - A mailing list for discussion about Sun Microsystem's Java Servlet API Technology

JSP - A mailing list about Java Server Pages specification and reference

Struts & Hibernate

Subjects

•	JSP editor plugin for eclipse ?
•	org apache jasper JasperException: Unable to compile class for JSP
•	Tomcat: Connection reset by peer: socket write error
•	Cannot retrieve definition for form bean null
•	Struts Tiles Tutorial (free Struts training)
•	Where do I download Tomcat 4 0 6?
•	Data Access Object (DAO) pattern, example DAO 's
•	Where to download Tomcat v 4 1 24 from?
•	Tomcat 5 0 16 Requested resource not available
•	Oracle Connection Pooling in 3 2 2
•	Servlet : Session invalidate
•	Servlet action is currently unavailable
•	Tomcat/Struts Unicode Encoding/Decoding problems
•	Tomcat and webapplication specific java library path
•	Running a Simple JMS Example
•	Mapping in workers2 properties
•	org apache jasper JasperException
•	Cannot find message resources under key org apache struts action MESSAGE
•	problem with html:text bean throwing exception
•	Cannot find message resources under key org apache struts action MESSAGE
•	invalid direct reference problem with solution
•	Tool for jsp debug Try Sysdeo Eclipse Plugin
•	Tomcat 5 Cannot load JDBC driver class 'null ' SQL state: null
•	weblogic ejbc
•	java properties file
•	Jboss 3 2 3 Coyote Can 't re
•	Tomcat 5, Apache2 and mod jk2 integration problem
•	JBoss example problem new to J2EE
•	url string for connecting jboss to oracle
•	Value attribute of <html:checkbox
•	javax servlet ServletException: BeanUtils populate
•	HTTP Status 404 The requested resource is not available
•	5 0 18: Windows XP Pro vs Windows 2000

Connection Pooling doubts..

Connection Pooling doubts..

2003-11-19 - By Alok_Band

Back

Reply: 1 2 3 4 5

Hi,

I have basic doubts about Connection Pooling,

Interface DataSource -

Sun's java doc says that Driver Vendor implement this interface.

My doubts is who implements Connection Pooling mechanism? Driver Vendor or
Application Server?

What is the use of ConnectionPoolDataSource interface? I read that
Application Server uses this interface but don't know how?

I read that JTA enabled JDBC Driver implements XAConnection, XADataSource,
XAResource interfaces.

Does it mean that it is the responsibility of Driver Vendor to provide
ResourceManger(object implementing XAResource) supporting XA/Open standard
to communicate with Transaction manager?

But then what is the use of DataSource interface if JDBC Driver is giving
XAResource object?

I have always used DataSource object to get connection. How XAResource come
in picture? Does it mean that ApplicationServer would internally refer to
XAResource (given by JDBC Driver) when JTA connection is requested?

Which one is the Resource Manager for DB DataSource,
ConnectionPoolDataSource or XAResource? Are there any J2EE specification for
implementing DB Connection Pool?

Thanks in Advance

Regards,

Alok

**************************************************************************
This email (including any attachments) is intended for the sole use of the
intended recipient/s and may contain material that is CONFIDENTIAL AND
PRIVATE COMPANY INFORMATION. Any review or reliance by others or copying or
distribution or forwarding of any or all of the contents in this message is
STRICTLY PROHIBITED. If you are not the intended recipient, please contact
the sender by email and delete all copies; your cooperation in this regard
is appreciated.
**************************************************************************

===========================================================================
To unsubscribe, send email to listserv@(protected) and include in the body
of the message "signoff J2EE-INTEREST". For general help, send email to
listserv@(protected) and include in the body of the message "help".

<html>

<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">

<meta name=Generator content="Microsoft Word 10 (filtered)">

<style>

</style>

</head>

<body lang=EN-US link=blue vlink=purple>

<div class=Section1>

Hi,

 

I have basic doubts about Connection Pooling,

 

Interface DataSource - 

      Sun's java doc says that
Driver Vendor implement this interface.

 

My doubts is who implements Connection Pooling mechanism?
Driver Vendor or Application Server?

 

What is the use of ConnectionPoolDataSource interface? I
read that Application Server uses this interface but don't know how?

 

I read that JTA enabled JDBC Driver implements XAConnection,
XADataSource, XAResource interfaces. 

 

Does it mean that it is the responsibility of Driver Vendor
to provide ResourceManger(object implementing XAResource) supporting XA/Open
standard to communicate with Transaction manager?

 

But then what is the use of DataSource interface if JDBC
Driver
is giving XAResource object? 

 

I have always used DataSource object to get connection. How
XAResource
come in picture? Does it mean that ApplicationServer would internally refer to
XAResource
(given by JDBC Driver) when JTA connection is requested?

 

Which one is the Resource Manager for DB DataSource,
ConnectionPoolDataSource
or XAResource? Are there any J2EE specification for implementing DB Connection
Pool?

 

Thanks in Advance

 

Regards,

Alok

</div>

</body>

</html>

**************************************************
************************ 

This email (including any attachments) is intended
for the sole use of the intended recipient/s and may contain material that is
CONFIDENTIAL AND PRIVATE COMPANY INFORMATION. Any review or reliance by others
or copying or distribution or forwarding of any or all of the contents in this
message is STRICTLY PROHIBITED. If you are not the intended recipient, please
contact the sender by email and delete all copies; your cooperation in this
regard is appreciated.

**************************************************
************************
===========================================================================
To unsubscribe, send email to listserv@(protected) and include in the body
of the message "signoff J2EE-INTEREST". For general help, send email to
listserv@(protected) and include in the body of the message "help".