Actor subclasses

The module tutorial describes how to write an actor class in general. But there are already several actor subclasses available, which make it easier to write a new actor by inheriting there functionality.

In the following pages we will cover some of these subclasses.

• Algebra actors resolve functions of a SPARQL algebra tree.
• Init actors are the entrypoints into the Comunica framework.
• Join actors can be used to join two or more streams.
• Metadata actors parse a stream of triples to find metadata.
• Quad pattern resolvers return all bindings and metadata for a given pattern.
• Serialization actors are responsible for parsing and transforming the results to a given output format.