| /* |
| * 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.datasketches.tuple.aninteger; |
| |
| import org.apache.datasketches.tuple.SummarySetOperations; |
| import org.apache.datasketches.tuple.aninteger.IntegerSummary.Mode; |
| |
| /** |
| * Methods for defining how unions and intersections of two objects of type IntegerSummary |
| * are performed. |
| * |
| * @author Lee Rhodes |
| */ |
| public class IntegerSummarySetOperations implements SummarySetOperations<IntegerSummary> { |
| |
| private final Mode unionSummaryMode_; |
| |
| /** |
| * Intersection is not well defined or even meaningful between numeric values. |
| * Nevertheless, this can be defined to be a different type of aggregation for intersecting hashes. |
| */ |
| private final Mode intersectionSummaryMode_; |
| |
| /** |
| * Creates a new instance with two modes |
| * @param unionSummaryMode for unions |
| * @param intersectionSummaryMode for intersections |
| */ |
| public IntegerSummarySetOperations(final Mode unionSummaryMode, final Mode intersectionSummaryMode) { |
| unionSummaryMode_ = unionSummaryMode; |
| intersectionSummaryMode_ = intersectionSummaryMode; |
| } |
| |
| @Override |
| public IntegerSummary union(final IntegerSummary a, final IntegerSummary b) { |
| final IntegerSummary result = new IntegerSummary(unionSummaryMode_); |
| result.update(a.getValue()); |
| result.update(b.getValue()); |
| return result; |
| } |
| |
| @Override |
| public IntegerSummary intersection(final IntegerSummary a, final IntegerSummary b) { |
| final IntegerSummary result = new IntegerSummary(intersectionSummaryMode_); |
| result.update(a.getValue()); |
| result.update(b.getValue()); |
| return result; |
| } |
| |
| } |