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[hotfix][table-common] Move specific input type strategies out of Inp…
…utTypeStrategies
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78 changes: 78 additions & 0 deletions
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...n/java/org/apache/flink/table/types/inference/strategies/SpecificInputTypeStrategies.java
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| /* | ||
| * 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:https://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. | ||
| */ | ||
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| package org.apache.flink.table.types.inference.strategies; | ||
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.table.functions.BuiltInFunctionDefinitions; | ||
| import org.apache.flink.table.types.inference.ConstantArgumentCount; | ||
| import org.apache.flink.table.types.inference.InputTypeStrategies; | ||
| import org.apache.flink.table.types.inference.InputTypeStrategy; | ||
| import org.apache.flink.table.types.logical.StructuredType; | ||
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| import static org.apache.flink.table.types.inference.InputTypeStrategies.comparable; | ||
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| /** | ||
| * Entry point for specific input type strategies not covered in {@link InputTypeStrategies}. | ||
| * | ||
| * <p>This primarily serves the purpose of reducing visibility of individual type strategy | ||
| * implementations to avoid polluting the API classpath. | ||
| */ | ||
| @Internal | ||
| public final class SpecificInputTypeStrategies { | ||
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| /** See {@link CastInputTypeStrategy}. */ | ||
| public static final InputTypeStrategy CAST = new CastInputTypeStrategy(); | ||
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| /** See {@link MapInputTypeStrategy}. */ | ||
| public static final InputTypeStrategy MAP = new MapInputTypeStrategy(); | ||
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| /** See {@link CurrentWatermarkTypeStrategy}. */ | ||
| public static final InputTypeStrategy CURRENT_WATERMARK = | ||
| new CurrentWatermarkInputTypeStrategy(); | ||
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| // -------------------------------------------------------------------------------------------- | ||
| // Strategies composed of other strategies | ||
| // -------------------------------------------------------------------------------------------- | ||
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| /** | ||
| * Strategy specific for {@link BuiltInFunctionDefinitions#ARRAY}. | ||
| * | ||
| * <p>It expects at least one argument. All the arguments must have a common super type. | ||
| */ | ||
| public static final InputTypeStrategy ARRAY = | ||
| new CommonInputTypeStrategy(ConstantArgumentCount.from(1)); | ||
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| /** | ||
| * Strategy that checks all types are fully comparable with each other. Requires exactly two | ||
| * arguments. | ||
| */ | ||
| public static final InputTypeStrategy TWO_FULLY_COMPARABLE = | ||
| comparable(ConstantArgumentCount.of(2), StructuredType.StructuredComparision.FULL); | ||
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| /** | ||
| * Strategy that checks all types are equals comparable with each other. Requires exactly two | ||
| * arguments. | ||
| */ | ||
| public static final InputTypeStrategy TWO_EQUALS_COMPARABLE = | ||
| comparable(ConstantArgumentCount.of(2), StructuredType.StructuredComparision.EQUALS); | ||
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| private SpecificInputTypeStrategies() { | ||
| // no instantiation | ||
| } | ||
| } |
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