Resources

RDF resources and their management

Within documents, users can create RDF resources, i.e. instances of both built-in and user-defined RDF classes.

Built-in classes are defined in system ontologies while user-defined classes are defined in user ontologies.

User-defined classes

TBD

LinkedDataHub's built-in classes have pre-defined constructors, constraints and often a customized UI rendering (implemented by overriding generic XSLT templates with type-specific templates) as well, for example a query editor or a chart.

Type	Class	Description
`ASK`	`sp:Ask`	SPARQL `ASK` query
`Application`	`ldh:Application`	Remote LinkedDataHub application
`CONSTRUCT`	`sp:Construct`	SPARQL `CONSTRUCT` query
`CSV import`	`ldh:CSVImport`	Async CSV data import
`File`	`nfo:FileDataObject`	File to upload
`Graph chart`	`ldh:GraphChart`	Chart based on `CONSTRUCT`/`DESCRIBE` query results
`RDF import`	`ldh:RDFImport`	Async RDF data import
`Result set chart`	`ldh:ResultSetChart`	Chart based on `SELECT` query results
`Select`	`sp:Select`	SPARQL `SELECT` query
`Service`	`sd:Service`	SPARQL service (identified by its endpoint URL)
`View`	`ldh:View`	View based on `SELECT` query results

Resources that have customized UIs (such as queries, views, charts) are documented in more detail.

Resources can only be managed when the Properties layout mode is active.

Action	Description
Create	Click the Create dropdown on the bottom of the page. Fill out the fields in the form that appears. Click Save.
Update	Click the button in the top-right corner of the resource header (in the middle column of the content). Make changes in the form that appears. Click Save.
Delete	Click the button in the top-right corner of the resource header. Click the button to delete the block.

The following actions can also be performed using the command line interface.