59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* Copyright (C) 2015 Cloudius Systems, Ltd.
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*/
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#pragma once
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#include "mutation_partition.hh"
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#include "mutation_partition_view.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 : 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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row& r = _partition.static_row();
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r.append_cell(id, atomic_cell_or_collection(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();
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r.append_cell(id, atomic_cell_or_collection(collection));
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}
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virtual void accept_row_tombstone(clustering_key_prefix_view prefix, tombstone t) override {
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_partition.apply_row_tombstone(_schema, prefix, t);
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}
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virtual void accept_row(clustering_key_view key, api::timestamp_type created_at, tombstone deleted_at) override {
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deletable_row& r = _partition.clustered_row(_schema, key);
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r.apply(created_at);
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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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row& r = _current_row->cells();
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r.append_cell(id, atomic_cell_or_collection(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, atomic_cell_or_collection(collection));
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}
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};
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