Package org.apache.jena.query

ARQ - A query engine for Jena, implementing SPARQL.

ARQ is an implementation of SPARQL, an RDF query language defined by W3C.

Interface Summary

Interface	Description
Dataset	Query is over a Dataset, a collection of named graphs and a background graph (also called the default graph or unnamed graph).
DatasetAccessor	Deprecated. Use RDFConnection.
QueryExecution	A interface for a single execution of a query.
QuerySolution	A single answer from a SELECT query.
QueryVisitor	Query visitor pattern
ResultSet	Results from a query in a table-like manner for SELECT queries.
ResultSetRewindable

Class Summary

Class	Description
ARQ	ARQ - miscellaneous settings
BIOInput
DatasetAccessorFactory	Deprecated. Use RDFConnectionFactory.
DatasetFactory	Makes Datasets in various ways.
ParameterizedSparqlString	A Parameterized SPARQL String is a SPARQL query/update into which values may be injected.
Query	The data structure for a query as presented externally.
QueryExecutionBuilder	Query Execution builder.
QueryExecutionFactory	Place to make QueryExecution objects from Query objects or a string.
QueryFactory
QuerySolutionMap	Implementation of QuerySolution that is backed by an in-memory map.
ResultSetCloseable	A ResultSet that closes the associated QueryExecution via AutoCloseable.
ResultSetFactory	ResultSetFactory - make result sets from places other than a query.
ResultSetFormatter	ResultSetFormatter - Convenience ways to call the various output formatters.
SortCondition
Syntax	Symbols for query language syntaxes

Enum Summary

Enum	Description
QueryType	QueryType: one of the different kinds of query.
ReadWrite
TxnType

Exception Summary

Exception	Description
LabelExistsException	LabelExists in a named composite data source
QueryBuildException	QueryBuildException is exception for all exceptions during query execution construction.
QueryCancelledException	Indicate that a query execution has been cancelled and the operation can't be called
QueryException	QueryException is root exception for all (intentional) exceptions associated with query parsing and execution.
QueryExecException	QueryExecException indicates a condition encountered during query evaluation.
QueryFatalException	QueryFatalException is such that the query aborts do to some problem (this might be an internal error or something in the way the query builds or executes).
QueryParseException	QueryParseException is root exception for all (intentional) exceptions from the various parsers where the error is to do with the syntax of a query.