We have following requirements for catalog.xml support.

(a) Enhance Retriever so that it can ask a project to provide the location of 
the catalog.xml in a project and also provide a directory where all the 
resources as retrieved by retriever will be stored.


(b) Enhance retriever's Default Catalog Model implementation (which does 
resolution of a resource using catalog.xml), so that it could ask a project to 
provide the location of catalog.xml which should be used to resolve the 
resources.

(c) Make default CatalogModel implementation (which does resolution of a 
resource using catalog.xml) independent of project API of net beans and rely on 
location of catalog.xml file as provided by a user so that all the model which 
uses this default mechanism can use this. (This is for bpel project build time 
usage. Ie. Out of ide usage)