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[FLINK-12254][table] Update value literals to new type system #8581
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249 changes: 249 additions & 0 deletions
249
flink-table/flink-table-common/src/main/java/org/apache/flink/table/api/Types.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,249 @@ | ||
| /* | ||
| * 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 | ||
| * | ||
| * 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.api; | ||
|
|
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| import org.apache.flink.api.common.typeinfo.PrimitiveArrayTypeInfo; | ||
| import org.apache.flink.api.common.typeinfo.TypeInformation; | ||
| import org.apache.flink.api.java.typeutils.MapTypeInfo; | ||
| import org.apache.flink.api.java.typeutils.MultisetTypeInfo; | ||
| import org.apache.flink.api.java.typeutils.ObjectArrayTypeInfo; | ||
| import org.apache.flink.table.types.DataType; | ||
| import org.apache.flink.table.typeutils.TimeIntervalTypeInfo; | ||
| import org.apache.flink.types.Row; | ||
|
|
||
| import java.math.BigDecimal; | ||
| import java.util.Map; | ||
|
|
||
| /** | ||
| * This class enumerates all supported types of the Table API & SQL. | ||
| * | ||
| * @deprecated This class will be removed in future versions as it uses the old type system. It is | ||
| * recommended to use {@link DataTypes} instead which uses the new type system based on | ||
| * instances of {@link DataType}. Please make sure to use either the old or the new type | ||
| * system consistently to avoid unintended behavior. See the website documentation | ||
| * for more information. | ||
| */ | ||
| @Deprecated | ||
| public final class Types { | ||
|
|
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| // we use SQL-like naming for types and avoid Java keyword clashes | ||
| // CHECKSTYLE.OFF: MethodName | ||
|
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| /** | ||
| * Returns type information for a Table API string or SQL VARCHAR type. | ||
| */ | ||
| public static TypeInformation<String> STRING() { | ||
| return org.apache.flink.api.common.typeinfo.Types.STRING; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API boolean or SQL BOOLEAN type. | ||
| */ | ||
| public static TypeInformation<Boolean> BOOLEAN() { | ||
| return org.apache.flink.api.common.typeinfo.Types.BOOLEAN; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API byte or SQL TINYINT type. | ||
| */ | ||
| public static TypeInformation<Byte> BYTE() { | ||
| return org.apache.flink.api.common.typeinfo.Types.BYTE; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API short or SQL SMALLINT type. | ||
| */ | ||
| public static TypeInformation<Short> SHORT() { | ||
| return org.apache.flink.api.common.typeinfo.Types.SHORT; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API integer or SQL INT/INTEGER type. | ||
| */ | ||
| public static TypeInformation<Integer> INT() { | ||
| return org.apache.flink.api.common.typeinfo.Types.INT; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API long or SQL BIGINT type. | ||
| */ | ||
| public static TypeInformation<Long> LONG() { | ||
| return org.apache.flink.api.common.typeinfo.Types.LONG; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API float or SQL FLOAT/REAL type. | ||
| */ | ||
| public static TypeInformation<Float> FLOAT() { | ||
| return org.apache.flink.api.common.typeinfo.Types.FLOAT; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API integer or SQL DOUBLE type. | ||
| */ | ||
| public static TypeInformation<Double> DOUBLE() { | ||
| return org.apache.flink.api.common.typeinfo.Types.DOUBLE; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API big decimal or SQL DECIMAL type. | ||
| */ | ||
| public static TypeInformation<BigDecimal> DECIMAL() { | ||
| return org.apache.flink.api.common.typeinfo.Types.BIG_DEC; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API SQL date or SQL DATE type. | ||
| */ | ||
| public static TypeInformation<java.sql.Date> SQL_DATE() { | ||
| return org.apache.flink.api.common.typeinfo.Types.SQL_DATE; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API SQL time or SQL TIME type. | ||
| */ | ||
| public static TypeInformation<java.sql.Time> SQL_TIME() { | ||
| return org.apache.flink.api.common.typeinfo.Types.SQL_TIME; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API SQL timestamp or SQL TIMESTAMP type. | ||
| */ | ||
| public static TypeInformation<java.sql.Timestamp> SQL_TIMESTAMP() { | ||
| return org.apache.flink.api.common.typeinfo.Types.SQL_TIMESTAMP; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API interval of months. | ||
| */ | ||
| public static TypeInformation<Integer> INTERVAL_MONTHS() { | ||
| return TimeIntervalTypeInfo.INTERVAL_MONTHS; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for a Table API interval of milliseconds. | ||
| */ | ||
| public static TypeInformation<Long> INTERVAL_MILLIS() { | ||
| return TimeIntervalTypeInfo.INTERVAL_MILLIS; | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for {@link Row} with fields of the given types. | ||
| * | ||
| * <p>A row is a variable-length, null-aware composite type for storing multiple values in a | ||
| * deterministic field order. Every field can be null regardless of the field's type. The type of | ||
| * row fields cannot be automatically inferred; therefore, it is required to provide type information | ||
| * whenever a row is used. | ||
| * | ||
| * <p>The schema of rows can have up to <code>Integer.MAX_VALUE</code> fields, however, all row | ||
| * instances must strictly adhere to the schema defined by the type info. | ||
| * | ||
| * <p>This method generates type information with fields of the given types; the fields have | ||
| * the default names (f0, f1, f2 ..). | ||
| * | ||
| * @param types The types of the row fields, e.g., Types.STRING(), Types.INT() | ||
| * | ||
| */ | ||
| public static TypeInformation<Row> ROW(TypeInformation<?>... types) { | ||
| return org.apache.flink.api.common.typeinfo.Types.ROW(types); | ||
| } | ||
|
|
||
| /** | ||
| * Returns type information for {@link Row} with fields of the given types and with given names. | ||
| * | ||
| * <p>A row is a variable-length, null-aware composite type for storing multiple values in a | ||
| * deterministic field order. Every field can be null independent of the field's type. The type of | ||
| * row fields cannot be automatically inferred; therefore, it is required to provide type information | ||
| * whenever a row is used. | ||
| * | ||
| * <p>The schema of rows can have up to <code>Integer.MAX_VALUE</code> fields, however, all row | ||
| * instances must strictly adhere to the schema defined by the type info. | ||
| * | ||
| * @param fieldNames array of field names | ||
| * @param types array of field types | ||
| */ | ||
| public static TypeInformation<Row> ROW(String[] fieldNames, TypeInformation<?>[] types) { | ||
| return org.apache.flink.api.common.typeinfo.Types.ROW_NAMED(fieldNames, types); | ||
| } | ||
|
|
||
| /** | ||
| * Generates type information for an array consisting of Java primitive elements. The elements do | ||
| * not support null values. | ||
| * | ||
| * @param elementType type of the array elements; e.g. Types.INT() | ||
| */ | ||
| public static TypeInformation<?> PRIMITIVE_ARRAY(TypeInformation<?> elementType) { | ||
| if (elementType.equals(BOOLEAN())) { | ||
| return PrimitiveArrayTypeInfo.BOOLEAN_PRIMITIVE_ARRAY_TYPE_INFO; | ||
| } else if (elementType.equals(BYTE())) { | ||
| return PrimitiveArrayTypeInfo.BYTE_PRIMITIVE_ARRAY_TYPE_INFO; | ||
| } else if (elementType.equals(SHORT())) { | ||
| return PrimitiveArrayTypeInfo.SHORT_PRIMITIVE_ARRAY_TYPE_INFO; | ||
| } else if (elementType.equals(INT())) { | ||
| return PrimitiveArrayTypeInfo.INT_PRIMITIVE_ARRAY_TYPE_INFO; | ||
| } else if (elementType.equals(LONG())) { | ||
| return PrimitiveArrayTypeInfo.LONG_PRIMITIVE_ARRAY_TYPE_INFO; | ||
| } else if (elementType.equals(FLOAT())) { | ||
| return PrimitiveArrayTypeInfo.FLOAT_PRIMITIVE_ARRAY_TYPE_INFO; | ||
| } else if (elementType.equals(DOUBLE())) { | ||
| return PrimitiveArrayTypeInfo.DOUBLE_PRIMITIVE_ARRAY_TYPE_INFO; | ||
| } | ||
| throw new TableException( | ||
| String.format( | ||
| "%s cannot be an element of a primitive array. Only Java primitive types are supported.", | ||
| elementType)); | ||
| } | ||
|
|
||
| /** | ||
| * Generates type information for an array consisting of Java object elements. Null values for | ||
| * elements are supported. | ||
| * | ||
| * @param elementType type of the array elements; e.g. Types.INT() | ||
| */ | ||
| public static <E> TypeInformation<E[]> OBJECT_ARRAY(TypeInformation<E> elementType) { | ||
| return ObjectArrayTypeInfo.getInfoFor(elementType); | ||
| } | ||
|
|
||
| /** | ||
| * Generates type information for a Java HashMap. Null values in keys are not supported. An | ||
| * entry's value can be null. | ||
| * | ||
| * @param keyType type of the keys of the map e.g. Types.STRING() | ||
| * @param valueType type of the values of the map e.g. Types.STRING() | ||
| */ | ||
| public static <K, V> TypeInformation<Map<K, V>> MAP(TypeInformation<K> keyType, TypeInformation<V> valueType) { | ||
| return new MapTypeInfo<>(keyType, valueType); | ||
| } | ||
|
|
||
| /** | ||
| * Generates type information for a Multiset. A Multiset is baked by a Java HashMap and maps an | ||
| * arbitrary key to an integer value. Null values in keys are not supported. | ||
| * | ||
| * @param elementType type of the elements of the multiset e.g. Types.STRING() | ||
| */ | ||
| public static <E> TypeInformation<Map<E, Integer>> MULTISET(TypeInformation<E> elementType) { | ||
| return new MultisetTypeInfo<>(elementType); | ||
| } | ||
|
|
||
| // CHECKSTYLE.ON: MethodName | ||
|
|
||
| private Types() { | ||
| // no instantiation | ||
| } | ||
| } | ||
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really nit: We could have the same description for types param as in
Row(TypeInformation... types)