1 | /* | |
2 | * Copyright OpenSearch Contributors | |
3 | * SPDX-License-Identifier: Apache-2.0 | |
4 | */ | |
5 | ||
6 | ||
7 | package org.opensearch.sql.data.utils; | |
8 | ||
9 | import com.google.common.collect.Ordering; | |
10 | import org.opensearch.sql.data.model.ExprValue; | |
11 | ||
12 | /** | |
13 | * Idea from guava {@link Ordering}. The only difference is the special logic to handle {@link | |
14 | * org.opensearch.sql.data.model.ExprNullValue} and {@link | |
15 | * org.opensearch.sql.data.model.ExprMissingValue} | |
16 | */ | |
17 | public class NaturalExprValueOrdering extends ExprValueOrdering { | |
18 | static final ExprValueOrdering INSTANCE = new NaturalExprValueOrdering(); | |
19 | ||
20 | private transient ExprValueOrdering nullsFirst; | |
21 | private transient ExprValueOrdering nullsLast; | |
22 | ||
23 | @Override | |
24 | public int compare(ExprValue left, ExprValue right) { | |
25 |
1
1. compare : replaced int return with 0 for org/opensearch/sql/data/utils/NaturalExprValueOrdering::compare → KILLED |
return left.compareTo(right); |
26 | } | |
27 | ||
28 | @Override | |
29 | public ExprValueOrdering nullsFirst() { | |
30 | ExprValueOrdering result = nullsFirst; | |
31 |
1
1. nullsFirst : negated conditional → SURVIVED |
if (result == null) { |
32 | result = nullsFirst = super.nullsFirst(); | |
33 | } | |
34 |
1
1. nullsFirst : replaced return value with null for org/opensearch/sql/data/utils/NaturalExprValueOrdering::nullsFirst → KILLED |
return result; |
35 | } | |
36 | ||
37 | @Override | |
38 | public ExprValueOrdering nullsLast() { | |
39 | ExprValueOrdering result = nullsLast; | |
40 |
1
1. nullsLast : negated conditional → SURVIVED |
if (result == null) { |
41 | result = nullsLast = super.nullsLast(); | |
42 | } | |
43 |
1
1. nullsLast : replaced return value with null for org/opensearch/sql/data/utils/NaturalExprValueOrdering::nullsLast → KILLED |
return result; |
44 | } | |
45 | ||
46 | @Override | |
47 | public ExprValueOrdering reverse() { | |
48 |
1
1. reverse : replaced return value with null for org/opensearch/sql/data/utils/NaturalExprValueOrdering::reverse → KILLED |
return super.reverse(); |
49 | } | |
50 | } | |
Mutations | ||
25 |
1.1 |
|
31 |
1.1 |
|
34 |
1.1 |
|
40 |
1.1 |
|
43 |
1.1 |
|
48 |
1.1 |