Graph Traversal on top of rdf-ext Using ext-rdflib
This is a fork of the original rdfgraphnode that is based on rdflib.js. The functionality should be identical.
rdfgraphnode can be used in the browser both with rdflib.js as well as ext-rdflib. The respective library must be loaded before rdfgraphnode.
<script src="https://retog.github.io/rdfgraphnode-rdfext/latest/GraphNode.js"></script>
You may replace latest with the version of rdfgraphnode you want to use.
A GraphNode represents an arbitrary number of nodes in a graph.
A GraphNode has the following properties:
- value
- termType
- node
- nodes
- graph
The first three properties are available only if the GraphNode represents exactly one node.
A GraphNode has the following methods:
- out(predicate)
- in(predicate)
- fetch()
- each(f)
- fetchEach(f)
- split()
The first three methods return a Promise for a GraphNode.The each(f)method invokes f once for every represented node with a GrahphNode representing that node as argument and returns a promise that is satisfied when all promises returned by f are resolved. The method fetchEach(f) is identical to each(f) but every node is fetched before being passed to f. The method split returns a GraphNode for every node in nodes
GraphNode($rdf.sym("https://reto.solid.factsmission.com:8443/public/")).fetch().then(folder =>
{ folder.out($rdf.sym("http://www.w3.org/ns/ldp#contains")).each(contained =>
{ console.log(contained.value) });
});