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61d658106a
Add `external_index` as a common base for `vector_index` and `fulltext_index`, both of which are backed by an external Vector Store engine and share CDC requirements.
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
/*
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* Copyright 2026-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.1
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*/
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#pragma once
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#include <algorithm>
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#include "schema/schema.hh"
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#include "data_dictionary/data_dictionary.hh"
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#include "index/secondary_index.hh"
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#include "index/secondary_index_manager.hh"
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namespace secondary_index {
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// Base class for indexes backed by an external Vector Store engine.
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class external_index : public custom_index {
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public:
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// Minimum CDC TTL required by Vector Store (24 hours).
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// Ensures CDC data is retained long enough for index builds to complete.
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static constexpr int VS_TTL_SECONDS = 86400;
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bool view_should_exist() const override;
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utils::UUID index_version(const schema& schema) override;
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static void check_cdc_options(const schema& schema, std::string_view search_type_name, bool index_already_exists);
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static void check_cdc_options_if_present(const schema& s);
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static void validate_cdc_not_disabled_if_present(const schema& s);
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static bool has_index(const schema& s) {
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return has_index_impl<external_index>(s);
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}
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protected:
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void check_uses_tablets(const schema& schema, const data_dictionary::database& db) const;
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template <typename T>
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static void check_cdc_options_impl(const schema& s) {
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check_cdc_options(s, T::SEARCH_TYPE_NAME, has_index_impl<T>(s));
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}
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template <typename T>
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static bool has_index_impl(const schema& s) {
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auto i = s.indices();
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return std::any_of(i.begin(), i.end(), [](const auto& index) {
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auto it = index.options().find(db::index::secondary_index::custom_class_option_name);
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if (it != index.options().end()) {
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auto custom_class = secondary_index_manager::get_custom_class_factory(it->second);
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return (custom_class && dynamic_cast<T*>((*custom_class)().get()));
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}
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return false;
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});
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}
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};
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} // namespace secondary_index
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