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#pragma clang system_header
// 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.
#pragma once
#include "contrib/libs/apache/arrow_next/cpp/src/arrow/extension_type.h"
namespace arrow20::extension {
/// \brief UuidArray stores array of UUIDs. Underlying storage type is
/// FixedSizeBinary(16).
class ARROW_EXPORT UuidArray : public ExtensionArray {
public:
using ExtensionArray::ExtensionArray;
};
/// \brief UuidType is a canonical arrow extension type for UUIDs.
/// UUIDs are stored as FixedSizeBinary(16) with big-endian notation and this
/// does not interpret the bytes in any way. Specific UUID version is not
/// required or guaranteed.
class ARROW_EXPORT UuidType : public ExtensionType {
public:
/// \brief Construct a UuidType.
UuidType() : ExtensionType(fixed_size_binary(16)) {}
std::string extension_name() const override { return "arrow.uuid"; }
std::string ToString(bool show_metadata = false) const override;
bool ExtensionEquals(const ExtensionType& other) const override;
/// Create a UuidArray from ArrayData
std::shared_ptr<Array> MakeArray(std::shared_ptr<ArrayData> data) const override;
Result<std::shared_ptr<DataType>> Deserialize(
std::shared_ptr<DataType> storage_type,
const std::string& serialized) const override;
std::string Serialize() const override { return ""; }
/// \brief Create a UuidType instance
static Result<std::shared_ptr<DataType>> Make() { return std::make_shared<UuidType>(); }
};
/// \brief Return a UuidType instance.
ARROW_EXPORT std::shared_ptr<DataType> uuid();
} // namespace arrow20::extension
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