Package com.stardog.stark.io.datatypes

Class RDFDatatypesHandler

java.lang.Object

com.stardog.stark.io.datatypes.RDFDatatypesHandler

All Implemented Interfaces:

DatatypeHandler

public final class RDFDatatypesHandler
extends Object
implements DatatypeHandler

Since:

1.0

Version:

1.0

Author:

Michael Grove

Field Summary

Fields

Modifier and Type	Field	Description
static final String	KEY	Identifier for datatypes defined in the RDF vocabulary.

Constructor Summary

Constructors

Constructor	Description
RDFDatatypesHandler()

Method Summary

Modifier and Type	Method	Description
boolean	isRecognizedDatatype(IRI theURI)	Checks if the given datatype IRI is recognized by this `DatatypeHandler`.
String	key()	A unique key for this datatype handler to identify it in the
boolean	verifyDatatype(String theValue, Datatype theDatatype)	Verifies that the datatype is valid, including a check on the structure of the literal value.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.stardog.stark.io.DatatypeHandler

normalizeDatatype

Field Details

KEY

public static final String KEY

Identifier for datatypes defined in the RDF vocabulary.

See Also:

• Constant Field Values

Constructor Details

RDFDatatypesHandler

public RDFDatatypesHandler()

Method Details

isRecognizedDatatype

public boolean isRecognizedDatatype(@Nonnull
 IRI theURI)

Checks if the given datatype IRI is recognized by this `DatatypeHandler`.

Specified by:

isRecognizedDatatype in interface DatatypeHandler

Parameters:

theURI - The datatype URI to check.

Returns:

`true` if the datatype is syntactically valid and could be used with DatatypeHandler.verifyDatatype(String, Datatype) and DatatypeHandler.normalizeDatatype(String, Datatype).

key

public String key()

A unique key for this datatype handler to identify it in the

Specified by:

key in interface DatatypeHandler

Returns:

A unique string key.

verifyDatatype

public boolean verifyDatatype(@Nonnull
 String theValue,
 @Nonnull
 Datatype theDatatype)

Verifies that the datatype is valid, including a check on the structure of the literal value.

This method must only be called after verifying that DatatypeHandler.isRecognizedDatatype(IRI) returns true for the given datatype URI.

Specified by:

verifyDatatype in interface DatatypeHandler

Parameters:

theValue - Literal value matching the given datatype URI.

theDatatype - A datatype that matched with DatatypeHandler.isRecognizedDatatype(IRI)

Returns:

True if the datatype URI is recognized by this datatype handler, and it is verified to be syntactically valid. An implementation may throw InvalidLiteral exception if the datatype is not recognized