[udig-devel] Merge operation question

[Victor Mauricio Pazos]

Hi, we are defining the merge operation, the team has the follow question:

Transaction Merge "FA merge FB =?"

1) First option:
- deletes FA and FB from source layer 
- creates new  FMerge on target layer
  
2) Second option:

- if target layer is equal to source layer then "deletes FA and FB" from 
source layer; else no action.
- creates new  FMerge on target layer

As you can see the first option always delete the source features.

The following link has the first idea for Merge operation.
 http://udig.refractions.net/confluence/display/COM/Axios

What do you think that is the best approach for Merge Transaction?

Thanks in advance
-- 
Mauricio Pazos

Axios Engineering
www.axios.es
e-mail: maurcio.pazos at axios.es
tel-:+34 94 441 63 84
fax: +34-94 441 64 90