[higgins-dev] Searching within a context

["Jim Sermersheim" <jimse@xxxxxxxxxx>]

We have the need to be able to perform robust searches within a context. For example, Return all Digital Subjects which have brown eyes, size 10 shoes, but not a dog named fido (unless they also have a cat named felix).

 

Given our rough consensus on a data model (well two actually), does anyone have a preferred search filter language?

 

For the high-level API, I can suggest something akin to what LDAP uses because I already know it. The example above would look like this:

(&(urn:higgins.property.person.eyeColor=brown)(urn:higgins.property.person.shoeSize=10)(|(!(urn:higgins.property.person.dogName=fido))(urn:higgins.property.person.catName=felix)))

 

I'm open to anything though, as long as we can filter on property(attribute) values and have sufficient operators (and, or, not, present, equal, ordering, substring, <provider-defined>).

 

Jim