pending_update.h

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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://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 <memory>
 
#include "iceberg/iceberg_export.h"
#include "iceberg/result.h"
#include "iceberg/type_fwd.h"
#include "iceberg/util/error_collector.h"
 
namespace iceberg {
 
class ICEBERG_EXPORT PendingUpdate : public ErrorCollector,
                                     public std::enable_shared_from_this<PendingUpdate> {
 public:
  enum class Kind : uint8_t {
    kExpireSnapshots,
    kSetSnapshot,
    kUpdateLocation,
    kUpdatePartitionSpec,
    kUpdatePartitionStatistics,
    kUpdateProperties,
    kUpdateSchema,
    kUpdateSnapshot,
    kUpdateSnapshotReference,
    kUpdateSortOrder,
    kUpdateStatistics,
  };
 
  virtual Kind kind() const = 0;
 
  virtual bool IsRetryable() const = 0;
 
  virtual Status Commit();
 
  PendingUpdate(const PendingUpdate&) = delete;
  PendingUpdate& operator=(const PendingUpdate&) = delete;
  PendingUpdate(PendingUpdate&&) = delete;
  PendingUpdate& operator=(PendingUpdate&&) = delete;
 
  ~PendingUpdate() override;
 
 protected:
  explicit PendingUpdate(std::shared_ptr<TransactionContext> ctx);
 
  const TableMetadata& base() const;
 
  Status CheckCommitAllowed() const;
 
  virtual Status CleanStaged() { return {}; }
  virtual Status Finalize(const TableMetadata& committed);
 
  std::shared_ptr<TransactionContext> ctx_;
 
 private:
  friend class Transaction;
 
  bool commit_called_ = false;
};
 
}  // namespace iceberg