Fedora Resource Index

The Fedora Resource Index service is described in http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index

iTQL

The resource index is queried by iTQL. A guide to iTQL can be found on http://docs.mulgara.org/itqlcommands/select.html

This has a graphical user interface, which it very helpful to users, but not programmatically useful. The interface is described here: http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index+Search

We have prepared a number of useful iTQL queries, that can serve as examples

Find all direct subclasses of doms:ContentModel_File in the Base collection 

select $object
from <#ri>
where      $object <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> <info:fedora/doms:ContentModel_File>
      and  $object <http://doms.statsbiblioteket.dk/relations/default/0/1/#isPartOfCollection> <info:fedora/doms:DOMS_Base_Collection>

Find the ancestors of doms:ContentModel_AudioPreservationFile 

select  $object
from <#ri>
where walk(
        <info:fedora/doms:ContentModel_AudioPreservationFile> <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> $object 
        and $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> $object )

Find all the any-level children of doms:ContentModel_DOMS 

select $subject
from <#ri>
where walk(
        $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> <info:fedora/doms:ContentModel_DOMS>
        and $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> $object
        );

Same again, with different output 

select $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> $object
from <#ri>
where walk(
        $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> <info:fedora/doms:ContentModel_DOMS>
        and $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> $object
        );

Anylevel children of ContentModel_DOMS in the base collection 

select $subject
from <#ri>
where walk(
        $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> <info:fedora/doms:ContentModel_DOMS>
        and $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> $object
        )
        and $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#isPartOfCollection> <info:fedora/doms:DOMS_Base_Collection>

Any objects in the Root collection or subcollections 

select   $subject '<isPartOfCollection>' $object 
from <#ri>
where walk(
        $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#isPartOfCollection> <info:fedora/doms:Root_Collection>
        and $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#isPartOfCollection> $object )

All Templates of content models in the base collection 

select $defbject
from <#ri>
where walk(
        $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> <info:fedora/doms:ContentModel_DOMS>
        and $subject <http://doms.statsbiblioteket.dk/relations/default/0/1/#extendsModel> $object
        )
        and $defbject <http://doms.statsbiblioteket.dk/relations/default/0/1/#isTemplateFor> $subject
        and $defbject <http://doms.statsbiblioteket.dk/relations/default/0/1/#isPartOfCollection> <info:fedora/doms:DOMS_Base_Collection>

For programs, there are two interfaces.