org.ontoware.rdf2go.util

Class SparqlUtil

java.lang.Object

org.ontoware.rdf2go.util.SparqlUtil

public class SparqlUtil
extends Object

Helper for SPARQL encode/decode of strings

Author:

voelkel

Constructor Summary

Constructors

Constructor and Description
SparqlUtil()

Method Summary

Modifier and Type	Method and Description
static String	formatQuery(String queryTemplate, Object... args) Helps to use SPARQL query templates.
static String	sparqlEncode(String raw)
static String	sparqlRegExpEncode(String raw)
static String	toSparqlLiteral(String raw)

Methods inherited from class java.lang.Object

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

Constructor Detail

SparqlUtil

public SparqlUtil()

Method Detail

toSparqlLiteral

public static String toSparqlLiteral(String raw)

Returns:

"\"" + sparqlEncode(raw) +"\""

sparqlEncode

public static String sparqlEncode(String raw)

Parameters:

raw - the raw string to be encoded

Returns:

prefix all ' and " with a \

sparqlRegExpEncode

public static String sparqlRegExpEncode(String raw)

Parameters:

raw - string to be encoded

Returns:

the string ready to be INCLUDED in a SPARQL REGEX, which is defined in http://www.w3.org/TR/xpath-functions/#regex-syntax

formatQuery

public static String formatQuery(String queryTemplate,
                                 Object... args)

Helps to use SPARQL query templates.

Parameters:

queryTemplate - with placeholders

args - to be inserted instead of placeholders

Returns:

the queryTemplate string where each template placeholder is replaced be the nodes.toSPARQL() method.