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Item:OSW911488771ea449a6a34051f8213d7f2f: Difference between revisions
Item:OSW911488771ea449a6a34051f8213d7f2f (view source)
Revision as of 16:54, 9 August 2024
, 9 Augustupdate from wiki-dev
(Update package: OSW Docs - Core) |
(update from wiki-dev) Tag: 2017 source edit |
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JSON-LD allows the import of context(s) from other JSON documents | JSON-LD allows the import of context(s) from other JSON documents | ||
* Prefixes and mappings can be moved to a remote context | * Prefixes and mappings can be moved to a remote context | ||
<syntaxhighlight lang="json-ld"> | <nowiki>http://myschema.org/allmyquantitites.jsonld</nowiki><syntaxhighlight lang="json-ld"> | ||
{ | |||
"@context": { | |||
"qudt": "http://qudt.org/vocab/quantitykind/", | |||
"cap": "qudt:Capacitance", | |||
} | |||
} | |||
</syntaxhighlight><syntaxhighlight lang="json-ld"> | |||
{ | { | ||
"@context": [ | "@context": [ | ||
| Line 74: | Line 81: | ||
"current": 10.0 | "current": 10.0 | ||
} | } | ||
</syntaxhighlight>< | </syntaxhighlight> | ||
== JSON-LD: Mapping (4) - Full example == | |||
Actually this example was oversimplified. A full semantic representation would be | |||
<nowiki>http://myschema.org/allmyquantitites.jsonld</nowiki><syntaxhighlight lang="json-ld"> | |||
{ | |||
"@context": { | |||
"qudt": "http://qudt.org/schema/qudt/", | |||
"qunit": "http://qudt.org/vocab/unit/", | |||
"qkind": "http://qudt.org/vocab/quantkind/", | |||
"unit": { | |||
"@id": "qudt:hasUnit", | |||
"@type": "@id" | |||
}, | |||
"value": "qudt:value" | |||
} | |||
} | |||
</syntaxhighlight><syntaxhighlight lang="json-ld"> | |||
{ | |||
"@context": "http://myschema.org/allmyquantitites.jsonld", | |||
"value": 4.0, | |||
"unit": "qunit:CentiM" | |||
} | |||
</syntaxhighlight>which would translate to <code><pint.Quantity(4.0, 'centimeter')></code> in python, see [https://github.com/hampusnasstrom/ontopint]<div> | |||
== JSON-LD: Advanced concepts== | |||
There are many more feature of JSON-LD - see specification [https://www.w3.org/TR/json-ld/] | |||
* Property types, object properties | |||
* Reverse Properties | |||
* Arrays and containers | |||
* Multi-language strings | |||
* Framing | |||
* ... | |||
In general JSON-LD is not only about annotation but also transformation and normalization | |||
== JSON-LD: | == JSON-LD: Scopes == | ||
A property / the related subobject can have it's own context. The global context is inherited. [https://json-ld.org/playground/#startTab=tab-expanded&json-ld=%7B%22%40context%22%3A%7B%22test%22%3A%22http%3A%2F%2Ftest.org%2F%22%2C%22id%22%3A%22test%3AHasId%22%2C%22name%22%3A%22test%3AHasName%22%2C%22subobject%22%3A%7B%22%40id%22%3A%22test%3AHasSubobject%22%2C%22%40context%22%3A%7B%22id%22%3A%22test%3AHasSubId%22%7D%7D%7D%2C%22name%22%3A%22Test%201%22%2C%22id%22%3A%221%22%2C%22subobject%22%3A%7B%22name%22%3A%22Test%201.1%22%2C%22id%22%3A%221.1%22%7D%7D&context=%7B%7D Playground] | A property / the related subobject can have it's own context. The global context is inherited. [https://json-ld.org/playground/#startTab=tab-expanded&json-ld=%7B%22%40context%22%3A%7B%22test%22%3A%22http%3A%2F%2Ftest.org%2F%22%2C%22id%22%3A%22test%3AHasId%22%2C%22name%22%3A%22test%3AHasName%22%2C%22subobject%22%3A%7B%22%40id%22%3A%22test%3AHasSubobject%22%2C%22%40context%22%3A%7B%22id%22%3A%22test%3AHasSubId%22%7D%7D%7D%2C%22name%22%3A%22Test%201%22%2C%22id%22%3A%221%22%2C%22subobject%22%3A%7B%22name%22%3A%22Test%201.1%22%2C%22id%22%3A%221.1%22%7D%7D&context=%7B%7D Playground] | ||
<syntaxhighlight lang="json-ld"> | <syntaxhighlight lang="json-ld"> | ||
| Line 99: | Line 141: | ||
} | } | ||
</syntaxhighlight><div></div> | </syntaxhighlight><div></div> | ||
</div> | |||
==JSON-LD: Flatten a hierarchy== | ==JSON-LD: Flatten a hierarchy== | ||