Specifies a graph edge, that is, a mapping from the @id of this subject
to a set of one or more values.
A priority list of preferences
The second subject in this array shows how the first subject (the List) can
be referenced by another subject. When inserting data it might be more
readable to simply nest the list under the interests property in the outer
subject, fred.
[{
"@id": "fredInterests",
"@list": ["Lounging", "Bowling", "Pool", "Golf", "Poker"]
}, {
"@id": "fred",
"interests": { "@id": "fredInterests" }
}]
A chronology of referenced subjects
{
"@id": "fredAppearsIn",
"@list": [
{ "@type": "Episode", "name": "The Flintstone Flyer" },
{ "@type": "Episode", "name": "Hot Lips Hannigan" },
{ "@type": "Episode", "name": "The Swimming Pool" }
]
}
🚧 This engine does not support use of the
@listkeyword in a JSON-LD Context term definition.
A JSON-LD Context
for the query. In an API, this will frequently be implicit. For example,
using json-rql as the body of a POST to
http://example.com/my-api/v1/person/query might have the implicit context
of a Person (possibly found at http://example.com/my-api/v1/person).
The unique identity of the subject in the domain.
🚧 Subjects strictly need not be identified with an
@id, but the data of such Subjects cannot be retrieved with a simple Describe query.
An array or indexed-object representation of the list contents. Each "item" in the list can be any of the normal subject property objects, such as strings, numbers, booleans or References to other subjects.
The indexed-object notation is used to insert or delete items at a specific list index, expressed as a number or numeric string. For more explanation, see the m-ld Lists specification.
The type of the subject, as an IRI or set of IRIs. (@type is actually
shorthand for the RDF property
rdf:type.)
Constructor of subjects from subjects: used similarly to e.g. Number
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Used to express an ordered set of data. A List object is reified to a Subject (unlike in JSON-LD) and so it has an @id, which can be set by the user.
Examples:
A priority list of preferences
The second subject in this array shows how the first subject (the List) can be referenced by another subject. When inserting data it might be more readable to simply nest the list under the
interestsproperty in the outer subject, fred.[{ "@id": "fredInterests", "@list": ["Lounging", "Bowling", "Pool", "Golf", "Poker"] }, { "@id": "fred", "interests": { "@id": "fredInterests" } }]A chronology of referenced subjects
{ "@id": "fredAppearsIn", "@list": [ { "@type": "Episode", "name": "The Flintstone Flyer" }, { "@type": "Episode", "name": "Hot Lips Hannigan" }, { "@type": "Episode", "name": "The Swimming Pool" } ] }m-ld Lists specification
json-rql list