/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jena.rdf.model;
import java.util.NoSuchElementException ;
import org.apache.jena.util.iterator.* ;
/** An iterator which returns namespace URI's.
*
* <p>RDF iterators are standard Java iterators, except that they
* have an extra method that returns a specifically typed object,
* in this case a String representing a namespace URI, and have
* a <CODE>close()</CODE> method that should be called to free
* resources if the application does not complete the iteration.</p>
*/
public interface NsIterator extends ExtendedIterator<String>
{
/** Return the next namespace name of the iteration.
* @throws NoSuchElementException if there are no more to be returned.
* @return The next name space URI from the iteration.
*/
public String nextNs();
}