QueryExecUtils (Apache Jena ARQ)

public class QueryExecUtils
extends Object

Some utilities for query processing.

Constructors
Constructor and Description
`QueryExecUtils()`

Methods
Modifier and Type	Method and Description
`static void`	`execute(Op op, DatasetGraph dsg)`
`static void`	`execute(Op op, DatasetGraph dsg, ResultsFormat outputFormat)`
`static void`	`executeQuery(Query query, QueryExecution queryExecution)`
`static void`	`executeQuery(Query query, QueryExecution queryExecution, ResultsFormat outputFormat)`
`static RDFNode`	`getExactlyOne(QueryExecution qExec, String varname)` Execute, expecting the result to be one row, one column.
`static RDFNode`	`getExactlyOne(String qs, Dataset ds)` Execute a query, expecting the result to be one row, one column.
`static RDFNode`	`getExactlyOne(String qs, Model model)` Execute a query, expecting the result to be one row, one column.
`static RDFNode`	`getOne(QueryExecution qExec, String varname)` Execute, expecting the result to be one row, one column.
`static void`	`outputResultSet(ResultSet results, Prologue prologue, ResultsFormat outputFormat)`

public static void executeQuery(Query query,
                QueryExecution queryExecution)

public static void executeQuery(Query query,
                QueryExecution queryExecution,
                ResultsFormat outputFormat)

public static void execute(Op op,
           DatasetGraph dsg)

public static void execute(Op op,
           DatasetGraph dsg,
           ResultsFormat outputFormat)

public static void outputResultSet(ResultSet results,
                   Prologue prologue,
                   ResultsFormat outputFormat)

public static RDFNode getExactlyOne(String qs,
                    Model model)

Execute a query, expecting the result to be one row, one column. Return that one RDFNode

public static RDFNode getExactlyOne(String qs,
                    Dataset ds)

Execute a query, expecting the result to be one row, one column. Return that one RDFNode

public static RDFNode getExactlyOne(QueryExecution qExec,
                    String varname)

Execute, expecting the result to be one row, one column. Return that one RDFNode or throw an exception

Class QueryExecUtils