Magic Property | AllegroGraph 9.0.1
Author: Franz Incorporated

Copyright (c) 2005 - 2026 Franz, Incorporated
Last updated 27 May 2026 at 10:35

# SPARQL Magic Property

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## http://franz.com/ns/allegrograph/4.11/sna/neighborCache

Create a cache of the neighbors of a node.

For example,

    ?cache sna:neighborCache ( ex:namedGenerator ?startnode ?depth ) .

will create a neighbor matrix for the neighbors of `?startnode` out to a depth of `?depth` using the generator `ex:namedGenerator`. This assumes that this generator exists and that both `?startnode` and `?depth` are bound by other patterns in the query.

The bindings to `?cache` act like blank nodes in that they have no meaning outside of the current query execution. During the execution, however, they can be used in place to generators in order to speed up other SNA computations.

There is also a functional form for neighborCache which can be used in an expression. For example:

    BIND( sna:neighborCache ( ex:namedGenerator, ?startnode, ?depth ) AS ?cache )

### Notes

The following namespace abbreviations are used:

- fti - <http://franz.com/ns/allegrograph/2.2/textindex/>
- geo - <http://franz.com/ns/allegrograph/3.0/geospatial/>
- geofn - <http://franz.com/ns/allegrograph/3.0/geospatial/fn/>
- nd - <http://franz.com/ns/allegrograph/5.0/geo/nd#>
- ndfn - <http://franz.com/ns/allegrograph/5.0/geo/nd/fn#>
- sna - <http://franz.com/ns/allegrograph/4.11/sna/>

The SPARQL magic properties reference has additional information on using AllegroGraph magic properties and functions.