Package org.eclipse.rdf4j.model

Interface IRI

All Superinterfaces:
Resource, Serializable, Value
All Known Implementing Classes:
AbstractIRI, InternedIRI, LmdbIRI, MemIRI, NativeIRI, SimpleIRI
public interface IRI extends Resource
An Internationalized Resource Identifier (IRI). 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:

  • Method Summary

    Modifier and Type
    Method
    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.Resource

    isResource

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

    isBNode, isLiteral, isTriple, stringValue

  • Method Details

    • 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.

      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.

      Returns:
      the local name of this IRI

    • equals

      boolean equals(Object o)
      Compares this IRI to another object.
      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.
      Overrides:
      hashCode in class Object
      Returns:
      a hash code for this IRI computed as Value.stringValue().hashCode()