Scanning XML file...Best performanent approach ?

Hello ranchers,
I want to know the most performanent way to scan the XML files in spring. I have few XML files which contains either package name where all the bean resides or the java bean name which needs to be instantiated. In both the cases , at server start up, I want all the beans in the XML files to get instantiated. Can anyone please tell me the most performanent way to scan these files and instantiate all the java beans ?
Any white paper / link will greatly be appriciated.
Thanks in advance
Samir

Samir,
I don't follow. You don't have a Spring config file, but a list of beans?

Hello Jeanne
Thanks a lot for the reply. Let me put it this way. I have an application in which I am scanning some spring specific files(These files are having spring style beans) . For this I have used a class Scanner which extends "ComponentScanBeanDefinitionParser" . Though problem here is whenever it scans for the files, it scans the entire class path . Because of which my server start up time has increased considerably as all these files are getting scanned at server start-up.
Is there any way by which I can tell spring that we need to scan in this specific path insted of spring scanning entire class path and then instantiating beans which it found in it .
Thanks
Samir

or more precisely
I want to let the spring framework know through XML file, the location where it can find all the .class files which are refereed by spring configuration file . In short I want to specify the class path in the XML file. Is it possible to do so ?