package org.apache.lucene.facet.taxonomy;
/*
* 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();
}