Oracle mapviewer - problem with caching

I need help with clearing geometry cache. In my web application there is a need to clear cache after changing the geometry data in database. I'm using maps with tile layers and for them i want cache to be cleared using triggers in databae. I've tri开发者_JAVA百科ed with passing request to the servlet mcsadmin (using utl_http in pl/sql) with xml(map_cache_admin_request ) post parameter but it doesnt work because of not being logged in to this admin servlet. Could anyone help me to find a solution?

I know its a one year old question but if someone finds, it might prove helpful all you need to do is clear the cache from the mapviewer admin panel and ...unfortunately restart the server (either its oc4j or weblogic)