| /** |
| * 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. |
| **/ |
| |
| #ifndef QUICKSTEP_TYPES_DATE_TYPE_HPP_ |
| #define QUICKSTEP_TYPES_DATE_TYPE_HPP_ |
| |
| #include <cstddef> |
| #include <cstdio> |
| #include <string> |
| |
| #include "types/DatetimeLit.hpp" |
| #include "types/Type.hpp" |
| #include "types/TypeID.hpp" |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| class TypedValue; |
| |
| /** \addtogroup Types |
| * @{ |
| */ |
| |
| /** |
| * @brief A type representing the date. |
| **/ |
| class DateType : public Type { |
| public: |
| typedef DateLit cpptype; |
| |
| static const TypeID kStaticTypeID = kDate; |
| |
| /** |
| * @brief Get a reference to the non-nullable singleton instance of this |
| * Type. |
| * |
| * @return A reference to the non-nullable singleton instance of this Type. |
| **/ |
| static const DateType& InstanceNonNullable() { |
| static DateType instance(false); |
| return instance; |
| } |
| |
| /** |
| * @brief Get a reference to the nullable singleton instance of this Type. |
| * |
| * @return A reference to the nullable singleton instance of this Type. |
| **/ |
| static const DateType& InstanceNullable() { |
| static DateType instance(true); |
| return instance; |
| } |
| |
| /** |
| * @brief Get a reference to a singleton instance of this Type. |
| * |
| * @param nullable Whether to get the nullable version of this Type. |
| * @return A reference to the desired singleton instance of this Type. |
| **/ |
| static const DateType& Instance(const bool nullable) { |
| if (nullable) { |
| return InstanceNullable(); |
| } else { |
| return InstanceNonNullable(); |
| } |
| } |
| |
| const Type& getNullableVersion() const override { |
| return InstanceNullable(); |
| } |
| |
| const Type& getNonNullableVersion() const override { |
| return InstanceNonNullable(); |
| } |
| |
| std::size_t estimateAverageByteLength() const override { |
| return sizeof(DateLit); |
| } |
| |
| bool isCoercibleFrom(const Type &original_type) const override; |
| |
| bool isSafelyCoercibleFrom(const Type &original_type) const override; |
| |
| int getPrintWidth() const override { |
| return DateLit::kIsoChars; |
| } |
| |
| std::string printValueToString(const TypedValue &value) const override; |
| |
| void printValueToFile(const TypedValue &value, |
| FILE *file, |
| const int padding = 0) const override; |
| |
| /** |
| * @note value_string is expected to be in (possibly extended) ISO-8601 |
| * format. Extended ISO-8601 date format is "YYYY-MM-DD". YYYY is an |
| * integer year (in extended format, this may be more than 4 digits and |
| * include an optional sign prefix +/-). MM is a 2-digit month in the |
| * range 01-12. DD is a 2-digit day of month in the appropriate range |
| * for the month (i.e. 28 days for February in non-leap years, 29 days |
| * for February in leap years, 30 days for April, June, September, and |
| * November, and 31 days for all other months). Note that parsing will |
| * fail if there are any "extra" characters at the end of the string |
| * after a parsable ISO-8601 date. |
| **/ |
| bool parseValueFromString(const std::string &value_string, |
| TypedValue *value) const override; |
| |
| private: |
| explicit DateType(const bool nullable) |
| : Type(Type::kOther, kDate, nullable, sizeof(DateLit), sizeof(DateLit)) { |
| } |
| |
| DISALLOW_COPY_AND_ASSIGN(DateType); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_TYPES_DATE_TYPE_HPP_ |