Package com.hp.hpl.jena.rdf.query

RDQL - A query language for Jena

See:
          Description

Interface Summary
Constraint  
Printable  
QueryExecution Interface for query execution engines.
QueryResults Results from a query in a "ResultSet"-like manner.
Settable  
Value  
Var  
 

Class Summary
Environment  
QSys Class to define the operating environment for RDQL.
Query The data structure for a query.
QueryEngine An execution of a query.
QueryEngineSesame QueryExecution implemenetation that issues a query to a Sesame repository and presents the Jena interface to queries.
QueryPrintUtils  
QueryResultsFormatter Takes a QueryResult object and returns formatted (in various ways) Useful for the scripting interface.
QueryResultsMem  
QueryResultsStream The main QueryResults implementation for returning results from queries.
ResultBinding A mapping from variable name to a value.
ResultBinding.ResultBindingIterator Iterates over the variable names.
Slot  
TriplePattern  
WorkingVar Query engine working variable - different from variables in the query language.
 

Exception Summary
EvalFailureException  
EvalTypeException  
QueryException QueryException is root exception for all (intentional) exceptions associated with query parsing and processing.
RDQL_InternalErrorException  
ValueException  
 

Package com.hp.hpl.jena.rdf.query Description

RDQL - A query language for Jena

RDQL is an implementation of the SquishQL RDF query language, which itself is derived from rdfDB. This class of query languages regards RDF as triple data, without schema or ontology information unless explicitly includes in the RDF source. RDQL provides a query syntax and query execution engine in Java, primarily for experimental and embedded applications.



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