/**
* 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.mahout.cf.taste.impl.common;
import java.util.Iterator;
/**
* Adds ability to skip ahead in an iterator, perhaps more efficiently than by calling {@link #next()}
* repeatedly.
*/
public interface SkippingIterator<V> extends Iterator<V> {
/**
* Skip the next n elements supplied by this {@link Iterator}. If there are less than n elements remaining,
* this skips all remaining elements in the {@link Iterator}. This method has the same effect as calling
* {@link #next()} n times, except that it will never throw {@link java.util.NoSuchElementException}.
*/
void skip(int n);
}