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f3eade2f62
Drop the AGPL license in favor of a source-available license. See the blog post [1] for details. [1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
57 lines
2.8 KiB
C++
57 lines
2.8 KiB
C++
/*
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* Copyright (C) 2015-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#pragma once
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#include "mutation/mutation_partition_visitor.hh"
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#include "mutation/atomic_cell.hh"
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#include "schema/schema.hh" // temporary: bring in definition of `column_kind`
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class schema;
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class row;
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class mutation_partition;
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class column_mapping;
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class deletable_row;
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class column_definition;
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class abstract_type;
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class atomic_cell_or_collection;
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// Mutation partition visitor which applies visited data into
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// existing mutation_partition. The visited data may be of a different schema.
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// Data which is not representable in the new schema is dropped.
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// Weak exception guarantees.
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class converting_mutation_partition_applier : public mutation_partition_visitor {
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const schema& _p_schema;
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mutation_partition& _p;
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const column_mapping& _visited_column_mapping;
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deletable_row* _current_row;
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private:
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static bool is_compatible(const column_definition& new_def, const abstract_type& old_type, column_kind kind);
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static atomic_cell upgrade_cell(const abstract_type& new_type, const abstract_type& old_type, atomic_cell_view cell,
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atomic_cell::collection_member cm = atomic_cell::collection_member::no);
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static void accept_cell(row& dst, column_kind kind, const column_definition& new_def, const abstract_type& old_type, atomic_cell_view cell);
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static void accept_cell(row& dst, column_kind kind, const column_definition& new_def, const abstract_type& old_type, collection_mutation_view cell);public:
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converting_mutation_partition_applier(
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const column_mapping& visited_column_mapping,
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const schema& target_schema,
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mutation_partition& target);
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virtual void accept_partition_tombstone(tombstone t) override;
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void accept_static_cell(column_id id, atomic_cell cell);
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virtual void accept_static_cell(column_id id, atomic_cell_view cell) override;
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virtual void accept_static_cell(column_id id, collection_mutation_view collection) override;
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virtual void accept_row_tombstone(const range_tombstone& rt) override;
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virtual void accept_row(position_in_partition_view key, const row_tombstone& deleted_at, const row_marker& rm, is_dummy dummy, is_continuous continuous) override;
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void accept_row_cell(column_id id, atomic_cell cell);
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virtual void accept_row_cell(column_id id, atomic_cell_view cell) override;
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virtual void accept_row_cell(column_id id, collection_mutation_view collection) override;
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// Appends the cell to dst upgrading it to the new schema.
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// Cells must have monotonic names.
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static void append_cell(row& dst, column_kind kind, const column_definition& new_def, const column_definition& old_def, const atomic_cell_or_collection& cell);
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};
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