org.eclipse.rdf4j.model

Interface NamespaceAware

All Known Subinterfaces:

Model

All Known Implementing Classes:

AbstractModel, EmptyModel, FilteredModel, LinkedHashModel, SailModel, TreeModel

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface NamespaceAware

An interface that is used to signify that something is able to provide Namespace information, in addition to Statements.

Author:

Peter Ansell

Method Summary

Modifier and Type	Method and Description
default Optional<Namespace>	getNamespace(String prefix) Gets the namespace that is associated with the specified prefix, if any.
Set<Namespace>	getNamespaces() Gets the set that contains the assigned namespaces.

Method Detail

getNamespaces

Set<Namespace> getNamespaces()

Gets the set that contains the assigned namespaces.

Returns:

A Set containing the Namespace objects that are available.

getNamespace

default Optional<Namespace> getNamespace(String prefix)

Gets the namespace that is associated with the specified prefix, if any. If multiple namespaces match the given prefix, the result may not be consistent over successive calls to this method.

Parameters:

prefix - A namespace prefix.

Returns:

The namespace name that is associated with the specified prefix, or Optional.empty() if there is no such namespace.