Hi Miguel,

either you have 

• a fixed set of instances (not very probable) then whenever a change to that 
table is saved you could call a direct action on the other (known) instances to 
cause a refetch
• an arbitrary number of instances (more probable) then you should have a look 
at the ERJGroupsSynchronizer in Wonder. There you can send notifications to any 
listening instances and trigger the refetch by that way.

jw


Am 20.04.2012 um 05:55 schrieb WebObjects TORAcom:

> Hi List,
> 
> We have been using a table to store the application configuration parameters. 
> In every application that table just have a record and we have a 
> Configuration section in the app to modify those values. In the Application 
> class we have methods to store an updated object with the configuration 
> information.
> 
> It works fine until we deploy the application and starts more than one 
> instance in the JavaMonitor because if any value of the configuration changes 
> the object in the Application object gets updated but the other instances 
> don't receive any message to reload configuration info. 
> We don't want to consult the data base any time we want a configuration 
> parameter because we use them all over the application, we store number 
> formats, reporter URL, date formats, etc.
> 
> Is there any way to send a kind of message between different instances of the 
> same application?
> 
> 
> I am thinking on changing our approach to use XML properties file, but I have 
> the same problem, How to know when the properties file changes to load them 
> in every instance of my application?
> 
> Any help will be appreciated.
> 
> Best regards.
> 
> 
> Miguel Torres



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