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## Package com.hp.hpl.jena.query

ARQ - A query engine for Jena, implementing SPARQL.

See:
Description

Interface Summary
Dataset | Query is over a Dataset, a collection of named graphs and a background graph (also called the default graph or unnamed graph).
DataSource | A DataSource is a Dataset that has modification operations.
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
ARQ | ARQ - miscellaneous settings
DatasetFactory | Make Datasets and DataSources in various ways
Query | The data structure for a query as presented externally.
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.
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

Exception Summary
LabelExistsException | LabelExists in a named composite data source
QueryBuildException | QueryBuildException is exception for all excpetions during query execution construction.
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.

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

ARQ - A query engine for Jena, implementing SPARQL.

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

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