org.eclipse.rdf4j.model

Interface IRI

All Superinterfaces:

Resource, Serializable, URI, Value

All Known Implementing Classes:

AbstractIRI, MemIRI, NativeIRI, SimpleIRI, URIImpl

public interface IRI
extends URI, Resource

An Internationalized Resource Identifier (IRI). IRIs are an extension of the existing URI: while URIs are limited to a subset of the ASCII character set, IRIs may contain characters from the Universal Character Set (Unicode/ISO 10646), including Chinese or Japanese kanji, Korean, Cyrillic characters, and so forth. It is defined by RFC 3987.

An IRI can be split into a namespace part and a local name part, which are derived from an IRI string by splitting it in two using the following algorithm:

• Split after the first occurrence of the '#' character,
• If this fails, split after the last occurrence of the '/' character,
• If this fails, split after the last occurrence of the ':' character.

The last step should never fail as every legal (full) IRI contains at least one ':' character to separate the scheme from the rest of the IRI. The implementation should check this upon object creation.

Author:

Jeen Broekstra

See Also:

RFC 3987

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o) Compares this IRI to another object.
String	getLocalName() Gets the local name part of this IRI.
String	getNamespace() Gets the namespace part of this IRI.
int	hashCode() Computes the hash code of this IRI.
default boolean	isIRI() Check if the object is an instance of the given type.

Methods inherited from interface org.eclipse.rdf4j.model.URI

toString

Methods inherited from interface org.eclipse.rdf4j.model.Resource

isResource

Methods inherited from interface org.eclipse.rdf4j.model.Value

isBNode, isLiteral, isTriple, stringValue

Method Detail

isIRI

default boolean isIRI()

Description copied from interface: Value

Check if the object is an instance of the given type. Typically 2x than using instanceof. For implementers: This default implementation is overridden in the repsective sub-interface.

Specified by:

isIRI in interface Value

Returns:

true if instance of IRI

getNamespace

String getNamespace()

Gets the namespace part of this IRI.

The namespace is defined as per the algorithm described in the class documentation.

Specified by:

getNamespace in interface URI

Returns:

the namespace of this IRI

getLocalName

String getLocalName()

Gets the local name part of this IRI.

The local name is defined as per the algorithm described in the class documentation.

Specified by:

getLocalName in interface URI

Returns:

the local name of this IRI

equals

boolean equals(Object o)

Compares this IRI to another object.

Specified by:

equals in interface URI

Overrides:

equals in class Object

Parameters:

o - the object to compare this IRI to

Returns:

true, if the other object is an instance of IRI and their string values are equal; false, otherwise

hashCode

int hashCode()

Computes the hash code of this IRI.

Specified by:

hashCode in interface URI

Overrides:

hashCode in class Object

Returns:

a hash code for this IRI computed as URI.toString().hashCode()