Class Sparql

java.lang.Object

org.eclipse.rdf4j.console.command.ConsoleCommand

org.eclipse.rdf4j.console.command.QueryEvaluator

org.eclipse.rdf4j.console.command.Sparql

All Implemented Interfaces:

Command, Help

public class Sparql
extends QueryEvaluator

SPARQL query command

Author:

Bart Hanssens

Field Summary

Fields inherited from class ConsoleCommand

LOGGER

Modifier and Type	Field	Description
protected final org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor	Description
Sparql(TupleAndGraphQueryEvaluator evaluator)	Constructor

Method Summary

Modifier and Type	Method	Description
protected void	addQueryPrefixes(StringBuffer result, Collection<Namespace> namespaces)	Add namespace prefixes to query
String	getHelpLong()	Get long description
String	getHelpShort()	Get short description, small enough to fit on one console row
String	getName()	Get the name of the command
protected boolean	hasQueryPrefixes(String qry)	Check if query string already contains query prefixes

Methods inherited from class QueryEvaluator

executeQuery, usesSettings

Modifier and Type	Method	Description
void	executeQuery(String command, String operation)	Execute a SPARQL query
String[]	usesSettings()	Return the names of the settings used.

Methods inherited from class ConsoleCommand

askProceed, execute, getConsoleIO, getConsoleSettings, getConsoleState, write, writeError, writeError, writeInfo, writeln, writeUnopenedError

Modifier and Type	Method	Description
protected boolean	askProceed(String str, boolean defVal)	Ask user to proceed
void	execute(String... parameters)	Execute the given parameters.
ConsoleIO	getConsoleIO()	Get console IO
Map<String, ConsoleSetting>	getConsoleSettings()	Get console settings map
ConsoleState	getConsoleState()	Get console state
protected void	write(String str)	Write a string to the console
protected void	writeError(String str)	Write a string + newline to the console and to the log as an error
protected void	writeError(String str, Exception e)	Write a string + message of exception + newline to the console and to the log as an error
protected void	writeInfo(String str)	Write a string + newline to the console and to the log at level INFO
protected void	writeln(String str)	Write a string + newline to the console
protected void	writeUnopenedError()	Write repository not opened error

Methods inherited from class Object

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

Constructor Details

Sparql

public Sparql(TupleAndGraphQueryEvaluator evaluator)

Constructor

Parameters:

evaluator -

Method Details

getName

public String getName()

Description copied from interface: Help

Get the name of the command

Returns:

string

getHelpShort

public String getHelpShort()

Description copied from class: ConsoleCommand

Get short description, small enough to fit on one console row

Specified by:

getHelpShort in interface Help

Overrides:

getHelpShort in class ConsoleCommand

Returns:

help string

getHelpLong

public String getHelpLong()

Description copied from class: ConsoleCommand

Get long description

Specified by:

getHelpLong in interface Help

Overrides:

getHelpLong in class ConsoleCommand

Returns:

string, can be multiple lines

hasQueryPrefixes

protected boolean hasQueryPrefixes(String qry)

Description copied from class: QueryEvaluator

Check if query string already contains query prefixes

Specified by:

hasQueryPrefixes in class QueryEvaluator

Parameters:

qry - query string

Returns:

true if namespaces are already used

addQueryPrefixes

protected void addQueryPrefixes(StringBuffer result,
 Collection<Namespace> namespaces)

Description copied from class: QueryEvaluator

Add namespace prefixes to query

Specified by:

addQueryPrefixes in class QueryEvaluator

Parameters:

result -

namespaces - collection of known namespaces