predicates.h

/*
 * Copyright (c) 2008-2022, Hazelcast, Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once
 
#include "hazelcast/client/serialization/serialization.h"
 
#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
#pragma warning(push)
#pragma warning(disable : 4251) // for dll export
#endif
 
namespace hazelcast {
namespace client {
class hazelcast_client;
 
namespace query {
struct HAZELCAST_API query_constants
{
    static const char* const KEY_ATTRIBUTE_NAME;
    static const char* const THIS_ATTRIBUTE_NAME;
};
 
class HAZELCAST_API predicate
{};
 
struct HAZELCAST_API base_predicate : public predicate
{
    explicit base_predicate(hazelcast_client& client);
 
    serialization::object_data_output out_stream;
};
 
class HAZELCAST_API named_predicate : public base_predicate
{
protected:
    explicit named_predicate(hazelcast_client& client,
                             const std::string& attribute_name);
};
 
class multi_predicate : public base_predicate
{
public:
    template<typename... Args>
    multi_predicate(hazelcast_client& client, const Args&... values)
      : base_predicate(client)
    {
        out_stream.write<int32_t>(static_cast<int32_t>(sizeof...(values)));
        out_stream.write_objects(values...);
    }
 
    template<typename... Args>
    multi_predicate(const std::string attribute_name,
                    hazelcast_client& client,
                    const Args&... values)
      : base_predicate(client)
    {
        out_stream.write(attribute_name);
        out_stream.write<int32_t>(static_cast<int32_t>(sizeof...(values)));
        out_stream.write_objects(values...);
    }
 
    template<typename T>
    multi_predicate(const std::string attribute_name,
                    hazelcast_client& client,
                    const std::vector<T>& values)
      : base_predicate(client)
    {
        out_stream.write(attribute_name);
        out_stream.write<int32_t>(static_cast<int32_t>(values.size()));
        for (const T& value : values) {
            out_stream.write_object(value);
        }
    }
};
 
enum struct predicate_data_serializer_hook
{
    F_ID = -20,
 
    SQL_PREDICATE = 0,
 
    AND_PREDICATE = 1,
 
    BETWEEN_PREDICATE = 2,
 
    EQUAL_PREDICATE = 3,
 
    GREATERLESS_PREDICATE = 4,
 
    LIKE_PREDICATE = 5,
 
    ILIKE_PREDICATE = 6,
 
    IN_PREDICATE = 7,
 
    INSTANCEOF_PREDICATE = 8,
 
    NOTEQUAL_PREDICATE = 9,
 
    NOT_PREDICATE = 10,
 
    OR_PREDICATE = 11,
 
    REGEX_PREDICATE = 12,
 
    FALSE_PREDICATE = 13,
 
    TRUE_PREDICATE = 14,
 
    PAGING_PREDICATE = 15
};
 
class equal_predicate : public named_predicate
{
public:
    template<typename T>
    equal_predicate(hazelcast_client& client,
                    const std::string& attribute_name,
                    const T& value)
      : named_predicate(client, attribute_name)
    {
        out_stream.write_object(value);
    }
};
 
class not_equal_predicate : public named_predicate
{
public:
    template<typename T>
    not_equal_predicate(hazelcast_client& client,
                        const std::string& attribute_name,
                        const T& value)
      : named_predicate(client, attribute_name)
    {
        out_stream.write_object(value);
    }
};
 
class greater_less_predicate : public named_predicate
{
public:
    template<typename T>
    greater_less_predicate(hazelcast_client& client,
                           const std::string& attribute_name,
                           const T& value,
                           bool is_equal,
                           bool is_less)
      : named_predicate(client, attribute_name)
    {
        out_stream.write_object(value);
        out_stream.write(is_equal);
        out_stream.write(is_less);
    }
};
 
class between_predicate : public named_predicate
{
public:
    template<typename FROM_TYPE, typename TO_TYPE>
    between_predicate(hazelcast_client& client,
                      const std::string& attribute_name,
                      const FROM_TYPE& from,
                      const TO_TYPE& to)
      : named_predicate(client, attribute_name)
    {
        out_stream.write_object(to);
        out_stream.write_object(from);
    }
};
 
class HAZELCAST_API false_predicate : public base_predicate
{
public:
    false_predicate(hazelcast_client& client);
};
 
class HAZELCAST_API true_predicate : public base_predicate
{
public:
    true_predicate(hazelcast_client& client);
};
 
class HAZELCAST_API instance_of_predicate : public base_predicate
{
public:
    instance_of_predicate(hazelcast_client& client,
                          const std::string& java_class_name);
};
 
class HAZELCAST_API sql_predicate : public base_predicate
{
public:
    sql_predicate(hazelcast_client& client, const std::string& sql);
};
 
class HAZELCAST_API like_predicate : public named_predicate
{
public:
    like_predicate(hazelcast_client& client,
                   const std::string& attribute,
                   const std::string& expression);
};
 
class HAZELCAST_API ilike_predicate : public named_predicate
{
public:
    ilike_predicate(hazelcast_client& client,
                    const std::string& attribute,
                    const std::string& expression);
};
 
class HAZELCAST_API regex_predicate : public named_predicate
{
public:
    regex_predicate(hazelcast_client& client,
                    const std::string& attribute,
                    const std::string& expression);
};
 
class in_predicate : public multi_predicate
{
public:
    template<typename... Args>
    in_predicate(hazelcast_client& client,
                 const std::string& attribute_name,
                 const Args&... values)
      : multi_predicate(attribute_name, client, values...)
    {}
 
    template<typename T>
    in_predicate(hazelcast_client& client,
                 const std::string& attribute_name,
                 const std::vector<T>& values)
      : multi_predicate(attribute_name, client, values)
    {}
};
 
class and_predicate : public multi_predicate
{
public:
    template<typename... Args>
    and_predicate(hazelcast_client& client, const Args&... values)
      : multi_predicate(client, values...)
    {}
};
 
class or_predicate : public multi_predicate
{
public:
    template<typename... PredicateTypes>
    or_predicate(hazelcast_client& client, const PredicateTypes&... values)
      : multi_predicate(client, values...)
    {}
};
 
class not_predicate : public base_predicate
{
public:
    template<typename T>
    not_predicate(hazelcast_client& client, const T& predicate)
      : base_predicate(client)
    {
        out_stream.write_object(predicate);
    }
};
} // namespace query
 
namespace serialization {
template<typename T>
struct BasePredicateSerializer : public identified_data_serializer
{
    static constexpr int32_t get_factory_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::F_ID);
    }
 
    static void write_data(const T& object, object_data_output& out)
    {
        out.append_bytes(object.out_stream.to_byte_array());
    }
 
    static T read_data(object_data_input& in)
    {
        // Not need to read at the client side
        BOOST_THROW_EXCEPTION(exception::hazelcast_serialization(
          "readData", "Client should not need to use readdata method!!!"));
    }
};
 
template<>
struct hz_serializer<query::between_predicate>
  : public BasePredicateSerializer<query::between_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::BETWEEN_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::equal_predicate>
  : public BasePredicateSerializer<query::equal_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::EQUAL_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::not_equal_predicate>
  : public BasePredicateSerializer<query::not_equal_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::NOTEQUAL_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::greater_less_predicate>
  : public BasePredicateSerializer<query::greater_less_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::GREATERLESS_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::false_predicate>
  : public BasePredicateSerializer<query::false_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::FALSE_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::true_predicate>
  : public BasePredicateSerializer<query::true_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::TRUE_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::like_predicate>
  : public BasePredicateSerializer<query::like_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::LIKE_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::instance_of_predicate>
  : public BasePredicateSerializer<query::instance_of_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::INSTANCEOF_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::sql_predicate>
  : public BasePredicateSerializer<query::sql_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::SQL_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::ilike_predicate>
  : public BasePredicateSerializer<query::ilike_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::ILIKE_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::regex_predicate>
  : public BasePredicateSerializer<query::regex_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::REGEX_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::in_predicate>
  : public BasePredicateSerializer<query::in_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::IN_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::and_predicate>
  : public BasePredicateSerializer<query::and_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::AND_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::or_predicate>
  : public BasePredicateSerializer<query::or_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::OR_PREDICATE);
    }
};
 
template<>
struct hz_serializer<query::not_predicate>
  : public BasePredicateSerializer<query::not_predicate>
{
    static constexpr int32_t get_class_id() noexcept
    {
        return static_cast<int32_t>(
          query::predicate_data_serializer_hook::NOT_PREDICATE);
    }
};
}; // namespace serialization
} // namespace client
} // namespace hazelcast
 
#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
#pragma warning(pop)
#endif