| /* |
| * 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.queries.intervals; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Objects; |
| |
| class NotContainedByIntervalsSource extends DifferenceIntervalsSource { |
| |
| static IntervalsSource build(IntervalsSource minuend, IntervalsSource subtrahend) { |
| return Intervals.or(Disjunctions.pullUp(subtrahend, s -> new NotContainedByIntervalsSource(minuend, s))); |
| } |
| |
| private NotContainedByIntervalsSource(IntervalsSource minuend, IntervalsSource subtrahend) { |
| super(minuend, subtrahend); |
| } |
| |
| @Override |
| protected IntervalIterator combine(IntervalIterator minuend, IntervalIterator subtrahend) { |
| return new NotContainedByIterator(minuend, subtrahend); |
| } |
| |
| @Override |
| public Collection<IntervalsSource> pullUpDisjunctions() { |
| return Collections.singletonList(this); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(minuend, subtrahend); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (other instanceof NotContainedByIntervalsSource == false) return false; |
| NotContainedByIntervalsSource o = (NotContainedByIntervalsSource) other; |
| return Objects.equals(this.minuend, o.minuend) && Objects.equals(this.subtrahend, o.subtrahend); |
| } |
| |
| @Override |
| public String toString() { |
| return "NOT_CONTAINED_BY(" + minuend + "," + subtrahend + ")"; |
| } |
| |
| private static class NotContainedByIterator extends RelativeIterator { |
| |
| NotContainedByIterator(IntervalIterator a, IntervalIterator b) { |
| super(a, b); |
| } |
| |
| @Override |
| public int nextInterval() throws IOException { |
| if (bpos == false) |
| return a.nextInterval(); |
| while (a.nextInterval() != NO_MORE_INTERVALS) { |
| while (b.end() < a.end()) { |
| if (b.nextInterval() == NO_MORE_INTERVALS) |
| return a.start(); |
| } |
| if (a.start() < b.start()) |
| return a.start(); |
| } |
| return NO_MORE_INTERVALS; |
| } |
| } |
| } |