@@ Incomplete / misnamed?
ARQ consists of the following parts:
The SPARQL abstract syntax tree (AST) and the SPARQL parser
The algebra generator that turns SPARQL AST into algebra expressions
Query engines to execute queries
Result set handling for the SPARQL XML results format, the JSON and text versions.
Package | Use |
---|---|
org.apache.jena.query | The application API |
org.apache.jena.sparql.syntax | Abstract syntax tree |
org.apache.jena.sparql.algebra | SPARQL algebra |
org.apache.jena.sparql.lang | The parsers: SPARQL, ARQ, RDQL |
org.apache.jena.sparql.expr | Expression code. |
org.apache.jena.sparql.serializer | Output in SPARQL, ARQ forms, in SPARQL syntax, in an abstract form (useful in debugging) and in XML. |
org.apache.jena.sparql.engine | The abstraction of a query engine. |
org.apache.jena.sparql.engine.main | The usual query engine. |
org.apache.jena.sparql.engine.ref | The reference query engine (and quad version) |