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/
78 lines
2.7 KiB
C++
78 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: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#pragma once
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#include "schema/schema.hh"
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#include "mutation/mutation_partition.hh"
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#include "mutation/mutation_partition_visitor.hh"
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#include "mutation/tombstone.hh"
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#include "mutation/atomic_cell.hh"
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#include "mutation/range_tombstone.hh"
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#include "collection_mutation.hh"
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// Partition visitor which builds mutation_partition corresponding to the data its fed with.
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class partition_builder final : public mutation_partition_visitor {
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private:
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const schema& _schema;
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mutation_partition& _partition;
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deletable_row* _current_row;
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public:
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// @p will hold the result of building.
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// @p must be empty.
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partition_builder(const schema& s, mutation_partition& p)
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: _schema(s)
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, _partition(p)
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{ }
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virtual void accept_partition_tombstone(tombstone t) override {
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_partition.apply(t);
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}
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virtual void accept_static_cell(column_id id, atomic_cell_view cell) override {
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auto& cdef = _schema.static_column_at(id);
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accept_static_cell(id, atomic_cell(*cdef.type, cell));
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}
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void accept_static_cell(column_id id, atomic_cell&& cell) {
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row& r = _partition.static_row().maybe_create();
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r.append_cell(id, atomic_cell_or_collection(std::move(cell)));
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}
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virtual void accept_static_cell(column_id id, collection_mutation_view collection) override {
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row& r = _partition.static_row().maybe_create();
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r.append_cell(id, collection_mutation(*_schema.static_column_at(id).type, std::move(collection)));
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}
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virtual void accept_row_tombstone(const range_tombstone& rt) override {
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_partition.apply_row_tombstone(_schema, rt);
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}
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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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deletable_row& r = _partition.append_clustered_row(_schema, key, dummy, continuous);
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r.apply(rm);
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r.apply(deleted_at);
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_current_row = &r;
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}
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virtual void accept_row_cell(column_id id, atomic_cell_view cell) override {
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auto& cdef = _schema.regular_column_at(id);
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accept_row_cell(id, atomic_cell(*cdef.type, cell));
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}
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void accept_row_cell(column_id id, atomic_cell&& cell) {
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row& r = _current_row->cells();
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r.append_cell(id, std::move(cell));
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}
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virtual void accept_row_cell(column_id id, collection_mutation_view collection) override {
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row& r = _current_row->cells();
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r.append_cell(id, collection_mutation(*_schema.regular_column_at(id).type, std::move(collection)));
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}
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};
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