Re: Design Advice (And Orion JNDI syntax) Needed
Have you considered placing the string in the database?
tim.
Hello;
Problem: My application has many text strings (i.e. email messages, email
recipient addresses, canned messages, etc) that both my servlets and EJBs
need to access. It needs to be done in a way that these are not hardcoded
and can be accessed easily from servlets, ejbs, and possibly even standalone
applications.
My Solution: Have a MessageResources object that is created by a startup
servlet that contains all these strings. You can then use a
MessageResources.getValue(String) to get the desired string you want. This
is all done, the startup servlet runs, reads in the XML file, and creates
the MessageResources.
My Problem: I now need a way to pass that MessageResource object into scope
so it is accessible by Servlets and EJBs (I'll worry about standalone
applications later).
However, I somehow need a way for the Stateless session bean to get this
MessageResource object. I can't do StartupServlet.getMR() because the EJBs
might be remote.
Is it possible to use JNDI and store an object? IF that is the case, then I
could do something like this in my stateless session bean:
public String getMessage(String key) {
if (messageResources == null) {
// lookup messageResources with JNDI
}
}
How would I do this in OrionServer? I believe it is app server specific,
right?
Does anyone have any input? Is it the right way to do it? This must be a
common problem (global variables needed). How is everyone else doing this?
RE: Design Advice (And Orion JNDI syntax) Needed
Do these strings need to change dynamically without app redeployment?
If it's just error messages and the like, why not use
java.util.ResourceBundle?
String msg = ResourceBundle.getBundle("mymessages").getString(MSG_KEY);
You can store the resources in any format you like if you implement your
own ResourceBundle subclass, or you can use a .properties file. If you
pass in the cool Orion classloader I believe it will dynamically reload
the data, too. Check the javadocs.
Jeff
-Original Message-
From: Neal Kaiser [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 12, 2001 4:41 PM
To: Orion-Interest
Subject: Design Advice (And Orion JNDI syntax) Needed
Hello;
Problem: My application has many text strings (i.e. email
messages, email
recipient addresses, canned messages, etc) that both my
servlets and EJBs
need to access. It needs to be done in a way that these are
not hardcoded
and can be accessed easily from servlets, ejbs, and possibly
even standalone
applications.
My Solution: Have a MessageResources object that is created by
a startup
servlet that contains all these strings. You can then use a
MessageResources.getValue(String) to get the desired string
you want. This
is all done, the startup servlet runs, reads in the XML file,
and creates
the MessageResources.
My Problem: I now need a way to pass that MessageResource
object into scope
so it is accessible by Servlets and EJBs (I'll worry about standalone
applications later).
However, I somehow need a way for the Stateless session bean
to get this
MessageResource object. I can't do StartupServlet.getMR()
because the EJBs
might be remote.
Is it possible to use JNDI and store an object? IF that is the
case, then I
could do something like this in my stateless session bean:
public String getMessage(String key) {
if (messageResources == null) {
// lookup messageResources with JNDI
}
}
How would I do this in OrionServer? I believe it is app server
specific,
right?
Does anyone have any input? Is it the right way to do it?
This must be a
common problem (global variables needed). How is everyone else
doing this?
RE: Design Advice (And Orion JNDI syntax) Needed
Yeah but where should he cache it. this is mostly read only data by the
sound of it. Where should he cache it so that he has access to it via ejbs
and servlets? A stateless session bean can cache non conversational state
right? Can't he use a singleton from within a stateless session bean for
this? He can then access this information via his servlet and an ejb.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tim Endres
Sent: Monday, March 12, 2001 5:27 PM
To: Orion-Interest
Subject: Re: Design Advice (And Orion JNDI syntax) Needed
Have you considered placing the string in the database?
tim.
Hello;
Problem: My application has many text strings (i.e. email
messages, email
recipient addresses, canned messages, etc) that both my
servlets and EJBs
need to access. It needs to be done in a way that these are not
hardcoded
and can be accessed easily from servlets, ejbs, and possibly
even standalone
applications.
My Solution: Have a MessageResources object that is created by a startup
servlet that contains all these strings. You can then use a
MessageResources.getValue(String) to get the desired string you
want. This
is all done, the startup servlet runs, reads in the XML file,
and creates
the MessageResources.
My Problem: I now need a way to pass that MessageResource
object into scope
so it is accessible by Servlets and EJBs (I'll worry about standalone
applications later).
However, I somehow need a way for the Stateless session bean to get this
MessageResource object. I can't do StartupServlet.getMR()
because the EJBs
might be remote.
Is it possible to use JNDI and store an object? IF that is the
case, then I
could do something like this in my stateless session bean:
public String getMessage(String key) {
if (messageResources == null) {
// lookup messageResources with JNDI
}
}
How would I do this in OrionServer? I believe it is app server specific,
right?
Does anyone have any input? Is it the right way to do it? This
must be a
common problem (global variables needed). How is everyone else
doing this?
