Hi Sabiha,
This advice is obsolete and no longer works, I need to update this
chapter in the user guide. Currently *.driver.xml file is looked up
using the same exact algorithm that is used to locate cayenne.xml
(normally that would be in CLASSPATH).
While the advice is no longer applicable, its premises are still valid:
1. Keeping password in a plain-text file shipped with application is
bad security.
2. There should be an easy way to point an application to a different
database during deployment.
The most straightforward solution for web applications is to use
JNDI. With standalone GUI applications I usually create a database
login dialog that is popped up on first attempt to use Cayenne. We
have a bit of advice on how to implement it:
http://objectstyle.org/confluence/display/CAY/Setting+Database
+Connection
But I usually go with a custom DataSourceFactory (it is mentioned in
the article above, but with no details). Having your own
DataSourceFactory to pop up a login dialog guarantees that it will be
done at the right moment. After first login you may choose to store
entered information in user preferences on client machine (see
java.util.pref package) and do automatic login on subsequent logins.
Whatever way you choose to implement the login ultimately depends on
your requirements, I am just outlining some of the options. Hope this
helps.
Andrus
On Nov 2, 2005, at 1:29 AM, sabiha wrote:
> Hello!
>
> I have a question about Java standalone application
> deployment.
> I created jar file with all configuration xml files in
> root of this jar and it works fine. But what I want is
> to create jar file without data source file. I read in
> Cayenne documentation that it is recommended and easy
> to do. One of solutions is that location of this file
> be a file relative to the user HOME directory. So, my
> question is what I need to do to make this work in
> this way?
> (I have any experience in deploying Java applications)
>
> Thanks in advance!
>
> Sabiha
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