org.aksw.limes.core.gui.util

Class Restriction

java.lang.Object

org.aksw.limes.core.gui.util.Restriction

All Implemented Interfaces:

Serializable

public class Restriction
extends Object
implements Serializable

A SPARQL restriction which consists of a property and an object, restricting the resulting triples of a query to only those subjects ?s who fulfill the statement "?s property object". Example: "rdfs:type dbpedia-ontology:City". Also contains utility methods which help construct such queries.

Author:

Daniel Obraczka < soz11ffe@ studserv.uni-leipzig.de>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Restriction(String property, String object) Constructor

Method Summary

Modifier and Type	Method and Description
static List<Restriction>	fromString(List<String> restrictionStrings) creates a list of restrictions from a list of strings
static Restriction	fromString(String s) returns a Restriction from String
String	getObject() returns object
String	getProperty() returns property
static String	restrictionUnion(Collection<Restriction> restrictions, String var) joins restriction with union
static String	restrictionUnion(Vector<String> restrictionStrings, String var) creates a list of restrictions from the vector of strings and joins them with union operator
String	toString()
String	toString(String var) String representation with var

Methods inherited from class java.lang.Object

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

Constructor Detail

Restriction

public Restriction(String property,
                   String object)

Constructor

Parameters:

property - property

object - object

Method Detail

fromString

public static Restriction fromString(String s)
                              throws IllegalArgumentException

returns a Restriction from String

Parameters:

s - string to get restriction from

Returns:

restriction

Throws:

IllegalArgumentException - thrown if parameter s does not consist of exactly two or three parts separated by space characters

restrictionUnion

public static String restrictionUnion(Collection<Restriction> restrictions,
                                      String var)
                               throws IllegalArgumentException

joins restriction with union

Parameters:

restrictions - restrictions

var - var

Returns:

restriction joined with union

Throws:

IllegalArgumentException - thrown if on of the input restrictions was null

fromString

public static List<Restriction> fromString(List<String> restrictionStrings)

creates a list of restrictions from a list of strings

Parameters:

restrictionStrings - restrictionStrings

Returns:

list of restrictions

restrictionUnion

public static String restrictionUnion(Vector<String> restrictionStrings,
                                      String var)

creates a list of restrictions from the vector of strings and joins them with union operator

Parameters:

restrictionStrings - restrictionStrings

var - var

Returns:

string with restrictions joined with union

getProperty

public String getProperty()

returns property

Returns:

property

getObject

public String getObject()

returns object

Returns:

object

toString

public String toString()

Overrides:

toString in class Object

toString

public String toString(String var)

String representation with var

Parameters:

var - var

Returns:

string representation