Re: Question concerning struts-config and app constants

[Joe Germuska]

 > I am parameterizing an Action via the "parameter" attribute to the
 action element in struts-config.xml. The Java code in the Action class
 refers to the possible parameter values using String constants instead
 of using literal values. However, these same parameter values are simply
 hardcoded in struts-config.xml. So if I change the values of the
 constants, I have to change struts-config.xml, and vice-versa. Is there
 > an easy way to have the values for these constants in one place?
If you describe somewhat more what you're doing with the parameters 
inside the action, we might be able to suggest an alternative 
implementation.  For example, if you're doing some kind of 
conditional checking:

 if (MY_CONSTANT1.equals(mapping.getParameter())) { ... }
else if (MY_CONSTANT2.equals(mapping.getParameter())) { ... }
you might instead be able to use the MappingDispatchAction, which 
would encode the Java side of your values as method names instead of 
as String constants and eliminate the need to test the parameter 
against the constant.

http://struts.apache.org/api/org/apache/struts/actions/MappingDispatchAction.html
Joe
--
Joe Germuska            
[EMAIL PROTECTED]  
http://blog.germuska.com    
"In fact, when I die, if I don't hear 'A Love Supreme,' I'll turn 
back; I'll know I'm in the wrong place."
   - Carlos Santana