apache / apache/jena

Add GeoSPARQL 1.1 geometry metadata functions

Open
#4,204 0 comments 0 reactions 0 assignees View on GitHub
task
Dominant language
Java
Stars
1.4k
Forks
712
Avg merge
15h 41m
Merged PRs (30d)
53

Description

### Change

Part of #3828.

Add support for these GeoSPARQL 1.1 functions:
- `geof:geometryType`
- `geof:is3D`
- `geof:isMeasured`
- `geof:numGeometries`

### Are you interested in contributing a pull request for this task?

Yes

Contributor guide

Open the contributing guide

Research direction

Start by locating the existing GeoSPARQL function implementations and their tests in Apache Jena, then compare how geometry metadata functions are registered and evaluated. Add support for geof:geometryType, geof:is3D, geof:isMeasured, and geof:numGeometries, and verify the relevant GeoSPARQL tests pass.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
68/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.