[JBoss-user] [Installation & Configuration] - Re: Changing system properties from web applications

[mwomack]

Thanks for the quick replies.

This issue I am looking at is the default transform and parser classes that are 
set by the system properties "javax.xml.transform.TransformerFactory" and 
"javax.xml.parsers.SAXParserFactory" used by the JAX-RPC factories.  Our web 
application changes these values locally to the classes it wants to use, but if 
it leaves those values in place, then JBoss appears to have issues later 
because it is now using the classes the web app specified.  And briefly 
changing the values of those properties could have effects in other threads 
that access the values in the same time frame.

It just seems strange to me that this kind of change is not isolated from the 
container and other deployed web apps.  Is there another way this should be 
handled?  How can web apps specify a different default set of classes to use 
for XML related activity?

thanks,
-Mark

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[JBoss-user] [Installation & Configuration] - Changing system properties from web applications

[mwomack]

What is the default behavior/configuration for JBoss when a web application 
changes a system property?  Is the change propagated to the container and other 
deployed web applications or is it isolated to just that web application?  Is 
is possible to configure this behavior?

-Mark

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[JBoss-user] [Installation & Configuration] - Re: Can I configure a global jndi environment entry in JBoss

[mwomack]

If I can't set up a JNDI value available to all the web apps, can I somehow 
setup context-param overrides for each individual web application?

What I am really trying to acheive is the setting of some context-param values 
in the container so that the deployer does not need to go into the web.xml and 
make changes there.

-Mark

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[JBoss-user] [Installation & Configuration] - Re: Can I configure a global jndi environment entry in JBoss

[mwomack]

Scott, thanks for the reply.  So, instead of jndi, is it possible to create a 
container-wide context-param setting available to the web apps?  Or is the idea 
of default, container-side environment settings just not supported in JBoss?

thanks again,
-Mark

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[JBoss-user] [Installation & Configuration] - Can I configure a global jndi environment entry in JBoss 3.2

[mwomack]

Similar to something I have done in Tomcat 5.5.4, I want to define a jndi 
environment entry.  In a web.xml, it would look something like this:


  
MaxValue
java.lang.Float
45.4
  


And I would access it via java code like this:

InitialContext ctx = new InitialContext();
Float oValue = (Float)ctx.lookup("java:comp/env/MaxValue");
float value = oValue.floatValue();

Tomcat 5.5.4 lets me define this jndi entry by modifying the server.xml and 
context.xml files to define a global named resource.  It defines and maintaines 
this jndi entry at the server context.  I don't have to modify the web.xml of 
my web application or add any different/new files at deployment time.

Is there a similar way to configure this in JBoss 3.2.5?  I see a lot of 
examples for jdbc or data sources, but I cannot seem to find anything about 
entries.

thanks,
-Mark

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