https://github.com/aksw/semifuli

SEmantically DEscribed MIni FUnction LIbrary(SeMiFuLi), using FNO for the description in RDF
https://github.com/aksw/semifuli

fno rdf rml

Last synced: 13 days ago
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SEmantically DEscribed MIni FUnction LIbrary(SeMiFuLi), using FNO for the description in RDF

• Host: GitHub
• URL: https://github.com/aksw/semifuli
• Owner: AKSW
• License: mit
• Created: 2023-01-19T09:54:32.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2023-11-09T11:15:08.000Z (over 2 years ago)
• Last Synced: 2025-09-09T02:26:33.456Z (9 months ago)
• Topics: fno, rdf, rml
• Language: Java
• Homepage:
• Size: 119 KB
• Stars: 0
• Watchers: 23
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# SeMiFuLi: Semantically described mini function library

Library of small Java functions, semantically described with the [FNO ontology](https://w3id.org/function/spec). This enables the use e.g. in [RML mappings](https://www.w3.org/RML/).

The functions included deal with the following topics

* prefix substitution

* copies of some [grel functions](https://github.com/FnOio/grel-functions-java), adapted with null input handling

* timestamp conversion

## Usage

* The [RMLMapper](https://github.com/RMLio/rmlmapper-java) and [YARRRML](https://rml.io/yarrrml) supports usage of functions via FNO. You can add the functions on invocations of the `rmlmapper-java` by using the `-f` parameter of rmlmapper and adding the function library to the java classpath.

* For usage with [Function-Agent-Java](https://github.com/FnOio/function-agent-java) see tests.

* [xlsx2owl](https://github.com/AKSW/xlsx2owl) uses SeMiFuLi.

## History

* v0.2.1 (9.11.2023)

    * added readme, some cleanup

    * added String functions `contains` and `notContains`

    * major cleanup on `functions_xlsx2owl.ttl`, moved grel parameter definition copies to `grelTypes.ttl`, updated jar path, reordered entries

    * changes in testGetPrefixMapFilePath

    * updated dependency function-agent-java to v1.1.0

* 0.2 added more functions like timestamp conversion

* 0.0.1 initial version

## Authors

* Lars-Peter Meyer: lpmeyer@infai.org

## License

SeMiFuLi is licenced under the MIT licence.