beedb/include/io/execution_callback.h

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2022-04-04 20:25:01 +02:00
/*------------------------------------------------------------------------------*
* Architecture & Implementation of DBMS *
*------------------------------------------------------------------------------*
* Copyright 2022 Databases and Information Systems Group TU Dortmund *
* Visit us at *
* http://dbis.cs.tu-dortmund.de/cms/en/home/ *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR *
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, *
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR *
* OTHER DEALINGS IN THE SOFTWARE. *
* *
* Authors: *
* Maximilian Berens <maximilian.berens@tu-dortmund.de> *
* Roland Kühn <roland.kuehn@cs.tu-dortmund.de> *
* Jan Mühlig <jan.muehlig@tu-dortmund.de> *
*------------------------------------------------------------------------------*
*/
#pragma once
#include <memory>
#include <table/schema.h>
#include <table/tuple.h>
namespace beedb::plan::logical
{
class NodeInterface;
}
namespace beedb::io
{
class ExecutionCallback
{
public:
ExecutionCallback() = default;
virtual ~ExecutionCallback() = default;
virtual void on_schema(const table::Schema &schema) = 0;
virtual void on_tuple(const table::Tuple &tuple) = 0;
virtual void on_plan(const std::unique_ptr<plan::logical::NodeInterface> &plan) = 0;
};
class SilentExecutionCallback final : public ExecutionCallback
{
public:
SilentExecutionCallback() = default;
~SilentExecutionCallback() override = default;
void on_schema(const table::Schema &) override
{
}
void on_tuple(const table::Tuple &) override
{
}
void on_plan(const std::unique_ptr<plan::logical::NodeInterface> &) override
{
}
};
class FunctionalExecutionCallback final : public ExecutionCallback
{
public:
FunctionalExecutionCallback(
std::function<void(const table::Schema &)> &&schema_callback,
std::function<void(const table::Tuple &)> &&tuple_callback,
std::function<void(const std::unique_ptr<plan::logical::NodeInterface> &)> &&plan_callback)
: _schema_callback(std::move(schema_callback)), _tuple_callback(std::move(tuple_callback)),
_plan_callback(std::move(plan_callback))
{
}
FunctionalExecutionCallback(std::function<void(const table::Schema &)> &&schema_callback,
std::function<void(const table::Tuple &)> &&tuple_callback)
: FunctionalExecutionCallback(std::move(schema_callback), std::move(tuple_callback),
[](const std::unique_ptr<plan::logical::NodeInterface> &) {})
{
}
~FunctionalExecutionCallback() override = default;
void on_schema(const table::Schema &schema) override
{
_schema_callback(schema);
}
void on_tuple(const table::Tuple &tuple) override
{
_tuple_callback(tuple);
}
void on_plan(const std::unique_ptr<plan::logical::NodeInterface> &plan) override
{
_plan_callback(plan);
}
private:
std::function<void(const table::Schema &)> _schema_callback;
std::function<void(const table::Tuple &)> _tuple_callback;
std::function<void(const std::unique_ptr<plan::logical::NodeInterface> &)> _plan_callback;
};
} // namespace beedb::io