| package org.apache.lucene.facet; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.index.AtomicReaderContext; |
| import org.apache.lucene.util.IntsRef; |
| |
| /** Provides per-document ordinals. */ |
| |
| public abstract class OrdinalsReader { |
| |
| /** Returns ordinals for documents in one segment. */ |
| public static abstract class OrdinalsSegmentReader { |
| /** Get the ordinals for this document. ordinals.offset |
| * must always be 0! */ |
| public abstract void get(int doc, IntsRef ordinals) throws IOException; |
| |
| /** Default constructor. */ |
| public OrdinalsSegmentReader() { |
| } |
| } |
| |
| /** Default constructor. */ |
| public OrdinalsReader() { |
| } |
| |
| /** Set current atomic reader. */ |
| public abstract OrdinalsSegmentReader getReader(AtomicReaderContext context) throws IOException; |
| |
| /** Returns the indexed field name this {@code |
| * OrdinalsReader} is reading from. */ |
| public abstract String getIndexFieldName(); |
| } |