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69a385fd9d
Schema related files are moved there. This excludes schema files that also interact with mutations, because the mutation module depends on the schema. Those files will have to go into a separate module. Closes #12858
57 lines
2.7 KiB
C++
57 lines
2.7 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: AGPL-3.0-or-later
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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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