| /* |
| * 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.lucene.codecs.memory; |
| |
| import java.io.IOException; |
| import org.apache.lucene.index.BinaryDocValues; |
| import org.apache.lucene.util.Bits; |
| import org.apache.lucene.util.BytesRef; |
| |
| /** |
| * Wraps a {@link LegacyBinaryDocValues} into a {@link BinaryDocValues}. |
| * |
| * @deprecated Implement {@link BinaryDocValues} directly. |
| */ |
| @Deprecated |
| final class LegacyBinaryDocValuesWrapper extends BinaryDocValues { |
| private final Bits docsWithField; |
| private final LegacyBinaryDocValues values; |
| private final int maxDoc; |
| private int docID = -1; |
| |
| public LegacyBinaryDocValuesWrapper(Bits docsWithField, LegacyBinaryDocValues values) { |
| this.docsWithField = docsWithField; |
| this.values = values; |
| this.maxDoc = docsWithField.length(); |
| } |
| |
| @Override |
| public int docID() { |
| return docID; |
| } |
| |
| @Override |
| public int nextDoc() { |
| docID++; |
| while (docID < maxDoc) { |
| if (docsWithField.get(docID)) { |
| return docID; |
| } |
| docID++; |
| } |
| docID = NO_MORE_DOCS; |
| return NO_MORE_DOCS; |
| } |
| |
| @Override |
| public int advance(int target) { |
| if (target < docID) { |
| throw new IllegalArgumentException( |
| "cannot advance backwards: docID=" + docID + " target=" + target); |
| } |
| if (target == NO_MORE_DOCS) { |
| this.docID = NO_MORE_DOCS; |
| } else { |
| this.docID = target - 1; |
| nextDoc(); |
| } |
| return docID; |
| } |
| |
| @Override |
| public boolean advanceExact(int target) throws IOException { |
| docID = target; |
| return docsWithField.get(target); |
| } |
| |
| @Override |
| public long cost() { |
| return 0; |
| } |
| |
| @Override |
| public BytesRef binaryValue() { |
| return values.get(docID); |
| } |
| } |