[jira] [Created] (RYA-323) Enable Multi Var Geo Functions

["Aaron Mihalik (JIRA)" <ji...@apache.org>]

Aaron Mihalik created RYA-323:
---------------------------------

             Summary: Enable Multi Var Geo Functions
                 Key: RYA-323
                 URL: https://issues.apache.org/jira/browse/RYA-323
             Project: Rya
          Issue Type: Improvement
          Components: sail
            Reporter: Aaron Mihalik
            Assignee: Aaron Mihalik


Currently, all Rya GeoSPARQL functions must have at least one parameter as a constant, eg:

{code}
  ?point geo:asWKT ?wkt .
  FILTER(geof:sfWithin(?wkt, "POLYGON(( ... ))"^^geo:wktLiteral)) 
{code}

however, there is no good reason for this.  In fact, we will later want to support functions that take in two variables.  For instance, a previous set of statement patterns will resolve a wkt, then I want to pass that wkt value into the function, eg:

{code}
  <myEntity> <hasLocation> ?point .
  ?point geo:asWKT ?wkt1 .

  ?point geo:asWKT ?wkt2 .
  FILTER(geof:near(?wkt2, ?wkt1)) 
{code}



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