Package org.eclipse.rdf4j.model.base

Class InternedIRI

java.lang.Object

org.eclipse.rdf4j.model.base.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 Summary

Constructors

Constructor	Description
InternedIRI(String namespace, String localName)

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.
String	stringValue()	Returns the String-value of a Value object.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

isIRI

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

isResource

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

isBNode, isLiteral, isTriple

Constructor Details

InternedIRI

public InternedIRI(String namespace,
 String localName)

Method Details

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

toString

public String toString()

Overrides:

toString in class Object

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()