Package org.eclipse.rdf4j.model.base

Class InternedIRI

  • All Implemented Interfaces:
    Serializable, IRI, Resource, Value
    @InternalUseOnly
public final class InternedIRI
extends Object
implements IRI
    An IRI implementation that interns the stringValue so that two objects can be compared by their stringValue reference. Must only be used for IRIs that are effectively ´public static final´ and only for a very limited number of objects because string interning affects the GC root set (https://shipilev.net/jvm/anatomy-quarks/10-string-intern/).
    See Also:
    Serialized Form

    • Constructor Detail

      • InternedIRI

        public InternedIRI​(String namespace,
                   String localName)

    • Method Detail

      • stringValue

        public String stringValue()
        Description copied from interface: Value
        Returns the String-value of a Value object. This returns either a Literal's label, a IRI's URI or a BNode's ID.
        Specified by:
        stringValue in interface Value

      • getNamespace

        public String getNamespace()
        Description copied from interface: IRI
        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 IRI
        Returns:
        the namespace of this IRI

      • getLocalName

        public String getLocalName()
        Description copied from interface: IRI
        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 IRI
        Returns:
        the local name of this IRI

      • equals

        public boolean equals​(Object o)
        Description copied from interface: IRI
        Compares this IRI to another object.
        Specified by:
        equals in interface IRI
        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

        public int hashCode()
        Description copied from interface: IRI
        Computes the hash code of this IRI.
        Specified by:
        hashCode in interface IRI
        Overrides:
        hashCode in class Object
        Returns:
        a hash code for this IRI computed as Value.stringValue().hashCode()