@comunica/actor-rdf-metadata-extract-hydra-pagesize
Version:
A hydra-pagesize rdf-metadata-extract actor
50 lines (36 loc) • 1.7 kB
Markdown
# Comunica Hydra Pagesize RDF Metadata Extract Actor
[](https://www.npmjs.com/package/@comunica/actor-rdf-metadata-extract-hydra-pagesize)
An [RDF Metadata Extract](https://github.com/comunica/comunica/tree/master/packages/bus-rdf-metadata-extract) actor that
extract page sizes in the [Hydra Core vocabulary](https://www.hydra-cg.com/spec/latest/core/).
This module is part of the [Comunica framework](https://github.com/comunica/comunica),
and should only be used by [developers that want to build their own query engine](https://comunica.dev/docs/modify/).
[Click here if you just want to query with Comunica](https://comunica.dev/docs/query/).
## Install
```bash
$ yarn add @comunica/actor-rdf-metadata-extract-hydra-pagesize
```
## Metadata entries
This actor adds the following entries to the metadata object.
* `pageSize`: Value of `http://www.w3.org/ns/hydra/core#itemsPerPage`.
## Configure
After installing, this package can be added to your engine's configuration as follows:
```text
{
"@context": [
...
"https://linkedsoftwaredependencies.org/bundles/npm/@comunica/actor-rdf-metadata-extract-hydra-pagesize/^5.0.0/components/context.jsonld"
],
"actors": [
...
{
"@id": "urn:comunica:default:rdf-metadata-extract/actors#hydra-pagesize",
"@type": "ActorRdfMetadataExtractHydraPagesize",
"predicates": [
"http://www.w3.org/ns/hydra/core#itemsPerPage"
]
}
]
}
```
### Config Parameters
* `predicates`: The predicates to consider when determining page size, defaults to `http://www.w3.org/ns/hydra/core#itemsPerPage`.