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/
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/*
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* Copyright 2019-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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/*
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* This file contains definitions and functions related to placing conditions
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* on Alternator queries (equivalent of CQL's restrictions).
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*
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* With conditions, it's possible to add criteria to selection requests (Scan, Query)
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* and use them for narrowing down the result set, by means of filtering or indexing.
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*
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* Ref: https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_Condition.html
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*/
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#pragma once
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#include "expressions_types.hh"
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namespace alternator {
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enum class comparison_operator_type {
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EQ, NE, LE, LT, GE, GT, IN, BETWEEN, CONTAINS, NOT_CONTAINS, IS_NULL, NOT_NULL, BEGINS_WITH
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};
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comparison_operator_type get_comparison_operator(const rjson::value& comparison_operator);
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enum class conditional_operator_type {
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AND, OR, MISSING
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};
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conditional_operator_type get_conditional_operator(const rjson::value& req);
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bool verify_expected(const rjson::value& req, const rjson::value* previous_item);
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bool verify_condition(const rjson::value& condition, bool require_all, const rjson::value* previous_item);
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bool check_CONTAINS(const rjson::value* v1, const rjson::value& v2, bool v1_from_query, bool v2_from_query);
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bool check_BEGINS_WITH(const rjson::value* v1, const rjson::value& v2, bool v1_from_query, bool v2_from_query);
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bool verify_condition_expression(
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const parsed::condition_expression& condition_expression,
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const rjson::value* previous_item);
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}
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