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
95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/*
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* Copyright (C) 2015-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#pragma once
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#include "schema/schema_fwd.hh"
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#include <seastar/core/shared_ptr.hh>
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#include "cql3/selection/selector.hh"
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#include "cql3/cql3_type.hh"
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#include "cql3/functions/function.hh"
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#include "cql3/functions/function_name.hh"
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namespace cql3 {
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namespace selection {
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class selectable;
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class selectable {
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public:
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virtual ~selectable() {}
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virtual ::shared_ptr<selector::factory> new_selector_factory(data_dictionary::database db, schema_ptr schema, std::vector<const column_definition*>& defs) = 0;
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virtual sstring to_string() const = 0;
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protected:
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static size_t add_and_get_index(const column_definition& def, std::vector<const column_definition*>& defs) {
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auto i = std::find(defs.begin(), defs.end(), &def);
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if (i != defs.end()) {
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return std::distance(defs.begin(), i);
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}
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defs.push_back(&def);
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return defs.size() - 1;
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}
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public:
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class writetime_or_ttl;
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class with_function;
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class with_anonymous_function;
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class with_field_selection;
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class with_cast;
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};
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std::ostream & operator<<(std::ostream &os, const selectable& s);
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class selectable::with_function : public selectable {
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functions::function_name _function_name;
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std::vector<shared_ptr<selectable>> _args;
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public:
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with_function(functions::function_name fname, std::vector<shared_ptr<selectable>> args)
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: _function_name(std::move(fname)), _args(std::move(args)) {
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}
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virtual sstring to_string() const override;
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virtual shared_ptr<selector::factory> new_selector_factory(data_dictionary::database db, schema_ptr s, std::vector<const column_definition*>& defs) override;
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};
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class selectable::with_anonymous_function : public selectable {
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shared_ptr<functions::function> _function;
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std::vector<shared_ptr<selectable>> _args;
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public:
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with_anonymous_function(::shared_ptr<functions::function> f, std::vector<shared_ptr<selectable>> args)
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: _function(f), _args(std::move(args)) {
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}
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virtual sstring to_string() const override;
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virtual shared_ptr<selector::factory> new_selector_factory(data_dictionary::database db, schema_ptr s, std::vector<const column_definition*>& defs) override;
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};
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class selectable::with_cast : public selectable {
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::shared_ptr<selectable> _arg;
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data_type _type;
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public:
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with_cast(::shared_ptr<selectable> arg, data_type type)
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: _arg(std::move(arg)), _type(std::move(type)) {
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}
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virtual sstring to_string() const override;
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virtual shared_ptr<selector::factory> new_selector_factory(data_dictionary::database db, schema_ptr s, std::vector<const column_definition*>& defs) override;
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};
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}
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}
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