package org.apache.lucene.index;/** * Copyright 2004 The Apache Software Foundation * * Licensed 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. */import java.io.IOException;/** * TermPositions provides an interface for enumerating the &lt;document, * frequency, &lt;position&gt;* &gt; tuples for a term.  <p> The document and * frequency are the same as for a TermDocs.  The positions portion lists the ordinal * positions of each occurrence of a term in a document. * * @see IndexReader#termPositions() */public interface TermPositions    extends TermDocs{    /** Returns next position in the current document.  It is an error to call	this more than {@link #freq()} times	without calling {@link #next()}<p> This is	invalid until {@link #next()} is called for	the first time.    */    int nextPosition() throws IOException;}