org.topbraid.spin.util

Class SPLUtil

java.lang.Object

org.topbraid.spin.util.SPLUtil

public class SPLUtil
extends Object

Utilities related to the spl namespace.

Author:

Holger Knublauch

Constructor Summary

Constructors

Constructor and Description
SPLUtil()

Method Summary

Modifier and Type	Method and Description
static Argument	getArgument(org.apache.jena.rdf.model.Resource subject, org.apache.jena.rdf.model.Property predicate) Gets any declared spl:Argument that is attached to the types of a given subject (or its superclasses) via spin:constraint, that has a given predicate as its spl:predicate.
static Map<org.apache.jena.rdf.model.Property,org.apache.jena.rdf.model.RDFNode>	getDefaultValues(org.apache.jena.rdf.model.Resource subject) Creates a Map from Properties to RDFNodes based on declared spl:InferDefaultValues.
static org.apache.jena.rdf.model.RDFNode	getObject(org.apache.jena.rdf.model.Resource subject, org.apache.jena.rdf.model.Property predicate) Same as getObject(subject, predicate, false).
static org.apache.jena.rdf.model.RDFNode	getObject(org.apache.jena.rdf.model.Resource subject, org.apache.jena.rdf.model.Property predicate, boolean includeSubProperties) Gets the (first) value of a subject/predicate combination.
static org.apache.jena.rdf.model.Property	getPrimaryKeyProperty(org.apache.jena.rdf.model.Resource cls)
static org.apache.jena.rdf.model.Property	getPrimaryKeyPropertyHelper(org.apache.jena.rdf.model.Resource cls, Set<org.apache.jena.rdf.model.Resource> reached)
static String	getPrimaryKeyURIStart(org.apache.jena.rdf.model.Resource cls)
static boolean	hasPrimaryKey(org.apache.jena.rdf.model.Resource cls)
static boolean	isArgument(org.apache.jena.rdf.model.Resource resource) Checks whether a given Resource is an instance of spl:Argument (or a subclass thereof.
static boolean	isArgumentPredicate(org.apache.jena.rdf.model.Resource subject, org.apache.jena.rdf.model.Property predicate) Checks if a given Property is a defined spl:Argument of a given subject Resource.
static boolean	isOnProperty(TemplateCall templateCall, org.apache.jena.rdf.model.Property onProperty) Checks if a given template call is about a specific property.

Methods inherited from class java.lang.Object

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

Constructor Detail

SPLUtil

public SPLUtil()

Method Detail

getArgument

public static Argument getArgument(org.apache.jena.rdf.model.Resource subject,
                                   org.apache.jena.rdf.model.Property predicate)

Gets any declared spl:Argument that is attached to the types of a given subject (or its superclasses) via spin:constraint, that has a given predicate as its spl:predicate.

Parameters:

subject - the instance to get an Argument of

predicate - the predicate to match

Returns:

the Argument or null if none found for that type

getDefaultValues

public static Map<org.apache.jena.rdf.model.Property,org.apache.jena.rdf.model.RDFNode> getDefaultValues(org.apache.jena.rdf.model.Resource subject)

Creates a Map from Properties to RDFNodes based on declared spl:InferDefaultValues.

Parameters:

subject -

Returns:

a Map from Properties to their default values (no null values)

getObject

public static org.apache.jena.rdf.model.RDFNode getObject(org.apache.jena.rdf.model.Resource subject,
                                                          org.apache.jena.rdf.model.Property predicate)

Same as getObject(subject, predicate, false).

See Also:

getObject(Resource, Property, boolean)

getObject

public static org.apache.jena.rdf.model.RDFNode getObject(org.apache.jena.rdf.model.Resource subject,
                                                          org.apache.jena.rdf.model.Property predicate,
                                                          boolean includeSubProperties)

Gets the (first) value of a subject/predicate combination. If no value exists, then it checks whether any spl:InferDefaultValue has been defined for the type(s) of the subject. No need to run inferences first.

Parameters:

subject - the subject to get the object of

predicate - the predicate

includeSubProperties - true to also check for sub-properties of predicate

Returns:

the object or null

getPrimaryKeyProperty

public static org.apache.jena.rdf.model.Property getPrimaryKeyProperty(org.apache.jena.rdf.model.Resource cls)

getPrimaryKeyPropertyHelper

public static org.apache.jena.rdf.model.Property getPrimaryKeyPropertyHelper(org.apache.jena.rdf.model.Resource cls,
                                                                             Set<org.apache.jena.rdf.model.Resource> reached)

getPrimaryKeyURIStart

public static String getPrimaryKeyURIStart(org.apache.jena.rdf.model.Resource cls)

hasPrimaryKey

public static boolean hasPrimaryKey(org.apache.jena.rdf.model.Resource cls)

isArgument

public static boolean isArgument(org.apache.jena.rdf.model.Resource resource)

Checks whether a given Resource is an instance of spl:Argument (or a subclass thereof.

Parameters:

resource - the Resource to test

Returns:

true if resource is an argument

isArgumentPredicate

public static boolean isArgumentPredicate(org.apache.jena.rdf.model.Resource subject,
                                          org.apache.jena.rdf.model.Property predicate)

Checks if a given Property is a defined spl:Argument of a given subject Resource.

Parameters:

subject - the subject

predicate - the Property to test

Returns:

true if an spl:Argument exists in the type hierarchy of subject

isOnProperty

public static boolean isOnProperty(TemplateCall templateCall,
                                   org.apache.jena.rdf.model.Property onProperty)

Checks if a given template call is about a specific property.

Parameters:

templateCall - the template call to check

onProperty - the property to be used in the constraint

Returns:

true if the template is about a given