How to realize index spaces

[Marc Bechler]

Hi,

I was wondering whether or not it is possible to realize different index 
spaces with one solr instance.

Example: imagine, you want to have 2 index spaces that coexist 
independently (and wich can be identified, e.g., by a unique id). In 
your query, you specify an id, and the query should be performed only in 
the index space with the respective id. Moreover, it should be possible 
to add/remove additional index spaces dynamically.

Maybe this question sounds stupid (yes, I am a newbie here ;-)), but the 
only possibility I found is to set up different solr instances. However, 
in this case it would be necessary to restart your tomcat engine.

Any ideas?

Cheers,

 marc