1 | /* | |
2 | * Copyright OpenSearch Contributors | |
3 | * SPDX-License-Identifier: Apache-2.0 | |
4 | */ | |
5 | ||
6 | ||
7 | package org.opensearch.sql.expression.window; | |
8 | ||
9 | import static java.util.Collections.emptyList; | |
10 | ||
11 | import com.google.common.collect.ImmutableMap; | |
12 | import java.util.function.Supplier; | |
13 | import lombok.experimental.UtilityClass; | |
14 | import org.opensearch.sql.expression.function.BuiltinFunctionName; | |
15 | import org.opensearch.sql.expression.function.BuiltinFunctionRepository; | |
16 | import org.opensearch.sql.expression.function.DefaultFunctionResolver; | |
17 | import org.opensearch.sql.expression.function.FunctionBuilder; | |
18 | import org.opensearch.sql.expression.function.FunctionName; | |
19 | import org.opensearch.sql.expression.function.FunctionSignature; | |
20 | import org.opensearch.sql.expression.window.ranking.DenseRankFunction; | |
21 | import org.opensearch.sql.expression.window.ranking.RankFunction; | |
22 | import org.opensearch.sql.expression.window.ranking.RankingWindowFunction; | |
23 | import org.opensearch.sql.expression.window.ranking.RowNumberFunction; | |
24 | ||
25 | /** | |
26 | * Window functions that register all window functions in function repository. | |
27 | */ | |
28 | @UtilityClass | |
29 | public class WindowFunctions { | |
30 | ||
31 | /** | |
32 | * Register all window functions to function repository. | |
33 | * | |
34 | * @param repository function repository | |
35 | */ | |
36 | public void register(BuiltinFunctionRepository repository) { | |
37 |
1
1. register : removed call to org/opensearch/sql/expression/function/BuiltinFunctionRepository::register → KILLED |
repository.register(rowNumber()); |
38 |
1
1. register : removed call to org/opensearch/sql/expression/function/BuiltinFunctionRepository::register → SURVIVED |
repository.register(rank()); |
39 |
1
1. register : removed call to org/opensearch/sql/expression/function/BuiltinFunctionRepository::register → SURVIVED |
repository.register(denseRank()); |
40 | } | |
41 | ||
42 | private DefaultFunctionResolver rowNumber() { | |
43 |
1
1. rowNumber : replaced return value with null for org/opensearch/sql/expression/window/WindowFunctions::rowNumber → KILLED |
return rankingFunction(BuiltinFunctionName.ROW_NUMBER.getName(), RowNumberFunction::new); |
44 | } | |
45 | ||
46 | private DefaultFunctionResolver rank() { | |
47 |
1
1. rank : replaced return value with null for org/opensearch/sql/expression/window/WindowFunctions::rank → KILLED |
return rankingFunction(BuiltinFunctionName.RANK.getName(), RankFunction::new); |
48 | } | |
49 | ||
50 | private DefaultFunctionResolver denseRank() { | |
51 |
1
1. denseRank : replaced return value with null for org/opensearch/sql/expression/window/WindowFunctions::denseRank → KILLED |
return rankingFunction(BuiltinFunctionName.DENSE_RANK.getName(), DenseRankFunction::new); |
52 | } | |
53 | ||
54 | private DefaultFunctionResolver rankingFunction(FunctionName functionName, | |
55 | Supplier<RankingWindowFunction> constructor) { | |
56 | FunctionSignature functionSignature = new FunctionSignature(functionName, emptyList()); | |
57 |
1
1. lambda$rankingFunction$0 : replaced return value with null for org/opensearch/sql/expression/window/WindowFunctions::lambda$rankingFunction$0 → KILLED |
FunctionBuilder functionBuilder = arguments -> constructor.get(); |
58 |
1
1. rankingFunction : replaced return value with null for org/opensearch/sql/expression/window/WindowFunctions::rankingFunction → KILLED |
return new DefaultFunctionResolver(functionName, |
59 | ImmutableMap.of(functionSignature, functionBuilder)); | |
60 | } | |
61 | ||
62 | } | |
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