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From Andrus Adamchik <>
Subject Re: loading another datadomain
Date Tue, 13 Jun 2006 13:35:12 GMT
Yeah, you would want to have both maps in a single DD (otherwise  
you'll have to maintain two DataContexts for the same user). If  
cdeploy Ant task is too cumbersome to use (i.e. you want runtime  
detection), you can load a second map via the API.

The easiest way to do this is using the trick Michael referred to -  
rename the second cayenne.xml to something else, then load it in a  
separate temporary Configuration instance [new DefaultConfiguration 
("my-cayenne.xml")]), and then grab a DataNode from that separate  
stack and attach it to the main stack (DataDomain.addNode(..)).


On Jun 9, 2006, at 6:01 PM, Tore Halset wrote:

> On Jun 9, 2006, at 15:53, Tore Halset wrote:
>> My web application has a single DataDomain. This application are  
>> sometimes deployed with a second application (as a boundled jar- 
>> file in the same classloader) that I am porting over to cayenne.  
>> As the first application has to work without the second app  
>> loaded, my main cayenne.xml has only the first domain and map-file.
>> During startup of the main application, I want to load the second  
>> domain and map if it is pressent. Is that possible? How?
> If it is easier, I guess using a single DataDomain for both of the  
> DataMaps should be possible. Each of the DataMaps will have a  
> separate DataNode. I still wonder how those can be loaded if present.
>  - Tore.

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