org.apache.marmotta.kiwi.sail

Class KiWiValueFactory

java.lang.Object

org.apache.marmotta.kiwi.sail.KiWiValueFactory

All Implemented Interfaces:

org.openrdf.model.ValueFactory

public class KiWiValueFactory
extends Object
implements org.openrdf.model.ValueFactory

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Author: Sebastian Schaffert

Constructor Summary

Constructors

Constructor and Description
KiWiValueFactory(KiWiStore store, String defaultContext)

Method Summary

Methods

Modifier and Type	Method and Description
protected KiWiConnection	aqcuireConnection()
void	close()
KiWiResource	convert(org.openrdf.model.Resource r)
KiWiUriResource	convert(org.openrdf.model.URI r)
KiWiNode	convert(org.openrdf.model.Value value)
org.openrdf.model.BNode	createBNode() Creates a new bNode.
org.openrdf.model.BNode	createBNode(String nodeID) Creates a new blank node with the given node identifier.
org.openrdf.model.Literal	createLiteral(boolean value) Creates a new xsd:boolean-typed literal representing the specified value.
org.openrdf.model.Literal	createLiteral(byte value) Creates a new xsd:byte-typed literal representing the specified value.
org.openrdf.model.Literal	createLiteral(Date date) Creates a new literal representing the specified date that is typed using the appropriate XML Schema date/time datatype.
org.openrdf.model.Literal	createLiteral(double value) Creates a new xsd:double-typed literal representing the specified value.
org.openrdf.model.Literal	createLiteral(float value) Creates a new xsd:float-typed literal representing the specified value.
org.openrdf.model.Literal	createLiteral(int value) Creates a new xsd:int-typed literal representing the specified value.
org.openrdf.model.Literal	createLiteral(long value) Creates a new xsd:long-typed literal representing the specified value.
org.openrdf.model.Literal	createLiteral(Object object) Creates a typed Literal out of the supplied object, mapping the runtime type of the object to the appropriate XML Schema type.
org.openrdf.model.Literal	createLiteral(short value) Creates a new xsd:short-typed literal representing the specified value.
org.openrdf.model.Literal	createLiteral(String label) Creates a new literal with the supplied label.
org.openrdf.model.Literal	createLiteral(String label, String language) Creates a new literal with the supplied label and language attribute.
org.openrdf.model.Literal	createLiteral(String label, org.openrdf.model.URI datatype) Creates a new literal with the supplied label and datatype.
org.openrdf.model.Literal	createLiteral(XMLGregorianCalendar calendar) Creates a new literal representing the specified calendar that is typed using the appropriate XML Schema date/time datatype.
org.openrdf.model.Statement	createStatement(org.openrdf.model.Resource subject, org.openrdf.model.URI predicate, org.openrdf.model.Value object) Creates a new statement with the supplied subject, predicate and object.
org.openrdf.model.Statement	createStatement(org.openrdf.model.Resource subject, org.openrdf.model.URI predicate, org.openrdf.model.Value object, org.openrdf.model.Resource context) Creates a new statement with the supplied subject, predicate and object and associated context.
org.openrdf.model.Statement	createStatement(org.openrdf.model.Resource subject, org.openrdf.model.URI predicate, org.openrdf.model.Value object, org.openrdf.model.Resource context, KiWiConnection connection) Creates a new statement with the supplied subject, predicate and object and associated context.
org.openrdf.model.URI	createURI(String uri) Creates a new URI from the supplied string-representation.
org.openrdf.model.URI	createURI(String namespace, String localName) Creates a new URI from the supplied namespace and local name.
protected void	releaseConnection(KiWiConnection con)
protected void	releaseRegistry(KiWiConnection connection)
protected void	removeStatement(KiWiTriple triple) Remove a statement from the triple registry.

Methods inherited from class java.lang.Object

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

Constructor Detail

KiWiValueFactory

public KiWiValueFactory(KiWiStore store,
                String defaultContext)

Method Detail

aqcuireConnection

protected KiWiConnection aqcuireConnection()

releaseConnection

protected void releaseConnection(KiWiConnection con)

createBNode

public org.openrdf.model.BNode createBNode()

Creates a new bNode.

Specified by:

createBNode in interface org.openrdf.model.ValueFactory

Returns:

An object representing the bNode.

createURI

public org.openrdf.model.URI createURI(String uri)

Creates a new URI from the supplied string-representation.

Specified by:

createURI in interface org.openrdf.model.ValueFactory

Parameters:

uri - A string-representation of a URI.

Returns:

An object representing the URI.

createURI

public org.openrdf.model.URI createURI(String namespace,
                              String localName)

Creates a new URI from the supplied namespace and local name. Calling this method is funtionally equivalent to calling createURI(namespace+localName), but allows the ValueFactory to reuse supplied namespace and local name strings whenever possible. Note that the values returned by URI.getNamespace() and URI.getLocalName() are not necessarily the same as the values that are supplied to this method.

Specified by:

createURI in interface org.openrdf.model.ValueFactory

Parameters:

namespace - The URI's namespace.

localName - The URI's local name.

Throws:

IllegalArgumentException - If the supplied namespace and localname do not resolve to a legal (absolute) URI.

createBNode

public org.openrdf.model.BNode createBNode(String nodeID)

Creates a new blank node with the given node identifier.

Specified by:

createBNode in interface org.openrdf.model.ValueFactory

Parameters:

nodeID - The blank node identifier.

Returns:

An object representing the blank node.

createLiteral

public org.openrdf.model.Literal createLiteral(Date date)

Creates a new literal representing the specified date that is typed using the appropriate XML Schema date/time datatype.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Since:

2.7.0

createLiteral

public org.openrdf.model.Literal createLiteral(Object object)

Creates a typed Literal out of the supplied object, mapping the runtime type of the object to the appropriate XML Schema type. If no mapping is available, the method returns a literal with the string representation of the supplied object as the value, and XMLSchema.STRING as the datatype. Recognized types are Boolean, Byte, Double, Float, Integer, Long, Short, XMLGregorianCalendar , and Date.

Parameters:

object - an object to be converted to a typed literal.

Returns:

a typed literal representation of the supplied object.

Since:

2.7.0

createLiteral

public org.openrdf.model.Literal createLiteral(String label)

Creates a new literal with the supplied label.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

label - The literal's label.

createLiteral

public org.openrdf.model.Literal createLiteral(String label,
                                      String language)

Creates a new literal with the supplied label and language attribute.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

label - The literal's label.

language - The literal's language attribute, or null if the literal doesn't have a language.

createLiteral

public org.openrdf.model.Literal createLiteral(String label,
                                      org.openrdf.model.URI datatype)

Creates a new literal with the supplied label and datatype.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

label - The literal's label.

datatype - The literal's datatype, or null if the literal doesn't have a datatype.

createLiteral

public org.openrdf.model.Literal createLiteral(boolean value)

Creates a new xsd:boolean-typed literal representing the specified value.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

value - The value for the literal.

Returns:

An xsd:boolean-typed literal for the specified value.

createLiteral

public org.openrdf.model.Literal createLiteral(byte value)

Creates a new xsd:byte-typed literal representing the specified value.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

value - The value for the literal.

Returns:

An xsd:byte-typed literal for the specified value.

createLiteral

public org.openrdf.model.Literal createLiteral(short value)

Creates a new xsd:short-typed literal representing the specified value.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

value - The value for the literal.

Returns:

An xsd:short-typed literal for the specified value.

createLiteral

public org.openrdf.model.Literal createLiteral(int value)

Creates a new xsd:int-typed literal representing the specified value.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

value - The value for the literal.

Returns:

An xsd:int-typed literal for the specified value.

createLiteral

public org.openrdf.model.Literal createLiteral(long value)

Creates a new xsd:long-typed literal representing the specified value.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

value - The value for the literal.

Returns:

An xsd:long-typed literal for the specified value.

createLiteral

public org.openrdf.model.Literal createLiteral(float value)

Creates a new xsd:float-typed literal representing the specified value.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

value - The value for the literal.

Returns:

An xsd:float-typed literal for the specified value.

createLiteral

public org.openrdf.model.Literal createLiteral(double value)

Creates a new xsd:double-typed literal representing the specified value.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

value - The value for the literal.

Returns:

An xsd:double-typed literal for the specified value.

createLiteral

public org.openrdf.model.Literal createLiteral(XMLGregorianCalendar calendar)

Creates a new literal representing the specified calendar that is typed using the appropriate XML Schema date/time datatype.

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

Parameters:

calendar - The value for the literal.

Returns:

An typed literal for the specified calendar.

createStatement

public org.openrdf.model.Statement createStatement(org.openrdf.model.Resource subject,
                                          org.openrdf.model.URI predicate,
                                          org.openrdf.model.Value object)

Creates a new statement with the supplied subject, predicate and object.

Specified by:

createStatement in interface org.openrdf.model.ValueFactory

Parameters:

subject - The statement's subject.

predicate - The statement's predicate.

object - The statement's object.

Returns:

The created statement.

createStatement

public org.openrdf.model.Statement createStatement(org.openrdf.model.Resource subject,
                                          org.openrdf.model.URI predicate,
                                          org.openrdf.model.Value object,
                                          org.openrdf.model.Resource context)

Creates a new statement with the supplied subject, predicate and object and associated context.

Specified by:

createStatement in interface org.openrdf.model.ValueFactory

Parameters:

subject - The statement's subject.

predicate - The statement's predicate.

object - The statement's object.

context - The statement's context.

Returns:

The created statement.

createStatement

public org.openrdf.model.Statement createStatement(org.openrdf.model.Resource subject,
                                          org.openrdf.model.URI predicate,
                                          org.openrdf.model.Value object,
                                          org.openrdf.model.Resource context,
                                          KiWiConnection connection)

Creates a new statement with the supplied subject, predicate and object and associated context. This is a specialised form of createStatement that allows the existance check for a triple to run in the same connection as the rest of the repository operations.

Parameters:

subject - The statement's subject.

predicate - The statement's predicate.

object - The statement's object.

context - The statement's context.

Returns:

The created statement.

removeStatement

protected void removeStatement(KiWiTriple triple)

Remove a statement from the triple registry. Called when the statement is deleted and the transaction commits.

Parameters:

triple -

releaseRegistry

protected void releaseRegistry(KiWiConnection connection)

convert

public KiWiResource convert(org.openrdf.model.Resource r)

convert

public KiWiUriResource convert(org.openrdf.model.URI r)

convert

public KiWiNode convert(org.openrdf.model.Value value)

close

public void close()