Module org.apache.jena.arq

Package org.apache.jena.sparql.exec

Class RowSetOps

java.lang.Object

org.apache.jena.sparql.exec.RowSetOps

public class RowSetOps
extends Object

RowSetFormatter - Convenience ways to call the various output formatters. in various formats.

See Also:

• ResultSetMgr

Method Summary

Modifier and Type	Method	Description
static void	consume(RowSet rowSet)	This operation faithfully walks the rowSet but does nothing with the rows.
static long	count(RowSet rowSet)	Count the rows in the RowSet (from the current point of RowSet).
static void	out(boolean answer)	Output an ASK answer
static void	out(OutputStream out, boolean answer)	Output an ASK answer
static void	out(OutputStream out, RowSet rowSet)	Output a result set in a text format.
static void	out(OutputStream out, RowSet resultSet, PrefixMap pmap)	Output a result set in a text format.
static void	out(OutputStream out, RowSet rowSet, Prologue prologue)	Output a result set in a text format.
static void	out(RowSet rowSet)	Output a result set in a text format.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

consume

public static void consume(RowSet rowSet)

This operation faithfully walks the rowSet but does nothing with the rows.

count

public static long count(RowSet rowSet)

Count the rows in the RowSet (from the current point of RowSet). This operation consumes the RowSet.

out

public static void out(RowSet rowSet)

Output a result set in a text format. The result set is consumed. Use @see{ResultSetFactory.makeRewindable(ResultSet)} for a rewindable one.

This caches the entire results in memory in order to determine the appropriate column widths and therefore may exhaust memory for large results

Parameters:

rowSet - result set

out

public static void out(OutputStream out,
 RowSet rowSet)

Output a result set in a text format.

This caches the entire results in memory in order to determine the appropriate column widths and therefore may exhaust memory for large results

Parameters:

out - OutputStream

rowSet - result set

out

public static void out(OutputStream out,
 RowSet resultSet,
 PrefixMap pmap)

Output a result set in a text format.

This caches the entire results in memory in order to determine the appropriate column widths and therefore may exhaust memory for large results

Parameters:

out - OutputStream

resultSet - Result set

pmap - Prefix mapping for abbreviating URIs.

out

public static void out(OutputStream out,
 RowSet rowSet,
 Prologue prologue)

Output a result set in a text format. The result set is consumed. Use @see{ResultSetFactory.makeRewindable(ResultSet)} for a rewindable one.

This caches the entire results in memory in order to determine the appropriate column widths and therefore may exhaust memory for large results

Parameters:

out - OutputStream

rowSet - result set

prologue - Prologue, used to abbreviate IRIs

out

public static void out(boolean answer)

Output an ASK answer

Parameters:

answer - The boolean answer

out

public static void out(OutputStream out,
 boolean answer)

Output an ASK answer

Parameters:

out - OutputStream

answer - The boolean answer