Aldo, On Wed, 2010-10-13 at 16:02 -0300, Aldo Bucchi wrote: > From the docs: > > "output:route: works only for SPARUL operators and tells the SPARQL > compiler to generate procedure names that differ from default. As a > result, the effect of operator will depend on application. That is for > tricks. E.g., consider an application that extracts metadata from DAV > resources stored in the Virtuoso and put them to RDF storage to make > visible from outside. When a web application has permissions and > credentials to execute a SPARUL query, the changed metadata can be > written to the DAV resource (and after that the trigger will update > them in the RDF storage), transparently for all other parts of > application." > > Where can I find more docs on this feature? > ( I don't actually need this, just asking )
Oops, looks like functions are not yet in the User's Guide. Will appear there soon. To make a custom repository for RDF data usable from SPARUL, one should create two functions, one to deal with inserts or deletes of individually defined triples and one to manipulate at graph level, such as SPARUL CLEAR GRAPH statement. If the repository is named NOTARY, then the first function should be named DB.DBA.SPARQL_ROUTE_DICT_CONTENT_NOTARY (due to types of arguments they get --- triples to insert or delete are passed in "DICTionary objects"), and the second should be DB.DBA.SPARQL_ROUTE_MDW_NOTARY (and MDW stands for "mass destruction weapon" and warns about the effect that the function under development may produce while not fully debugged) Arguments for both functions are in the same order: DB.DBA.SPARQL_ROUTE_DICT_CONTENT_NOTARY ( in graph_to_edit varchar, in operation_name varchar, --- the value passed will be 'INSERT', 'DELETE' or 'MODIFY' in storage_name varchar or null, --- value of define input:storage in output_storage_name varchar or null, --- reserved, now NULL in output_format_name varchar or null,--- value of define output:format in dict_of_triples_to_delete, --- (NULL is passed for INSERT) in dict_of_triples_to_insert, --- (NULL is passed for DELETE) NULL,--- reserved in uid_and_gs_cbk any, --- authentication data (numeric UID or vector of UID and name of application-specific graph security callback function) in log_mode integer, in report_flag --- 1 if function creates a small result set with human-friendly status report DB.DBA.SPARQL_ROUTE_MDW_NOTARY ( in graph_to_edit varchar, in operation_name varchar, --- the value passed will be 'CREATE', 'DROP', or 'CLEAR' in storage_name varchar or null, --- value of define input:storage in output_storage_name varchar or null, --- reserved, now NULL in output_format_name varchar or null,--- value of define output:format in aux any, --- flags like 'QUIET' NULL, --- reserved NULL,--- reserved in uid_and_gs_cbk any, --- authentication data (numeric UID or vector of UID and name of application-specific graph security callback function) in log_mode integer, in report_flag --- 1 if function creates a small result set with human-friendly status report ) Best Regards, Ivan Mikhailov OpenLink Software http://virtuoso.openlinksw.com P.S. As shown by Google, WMD is more popular variant of abbreviation than MDW and, ironically, WMD also stands for "World Movement for Democracy".
