mirror of
https://github.com/aykhans/AzSuicideDataVisualization.git
synced 2025-04-22 18:32:15 +00:00
94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
|
|
// or more contributor license agreements. See the NOTICE file
|
|
// distributed with this work for additional information
|
|
// regarding copyright ownership. The ASF licenses this file
|
|
// to you 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.
|
|
|
|
// NOTE: API is EXPERIMENTAL and will change without going through a
|
|
// deprecation cycle
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "arrow/result.h"
|
|
#include "arrow/status.h"
|
|
#include "arrow/util/visibility.h"
|
|
|
|
namespace arrow {
|
|
namespace compute {
|
|
|
|
class Function;
|
|
class FunctionOptionsType;
|
|
|
|
/// \brief A mutable central function registry for built-in functions as well
|
|
/// as user-defined functions. Functions are implementations of
|
|
/// arrow::compute::Function.
|
|
///
|
|
/// Generally, each function contains kernels which are implementations of a
|
|
/// function for a specific argument signature. After looking up a function in
|
|
/// the registry, one can either execute it eagerly with Function::Execute or
|
|
/// use one of the function's dispatch methods to pick a suitable kernel for
|
|
/// lower-level function execution.
|
|
class ARROW_EXPORT FunctionRegistry {
|
|
public:
|
|
~FunctionRegistry();
|
|
|
|
/// \brief Construct a new registry. Most users only need to use the global
|
|
/// registry
|
|
static std::unique_ptr<FunctionRegistry> Make();
|
|
|
|
/// \brief Add a new function to the registry. Returns Status::KeyError if a
|
|
/// function with the same name is already registered
|
|
Status AddFunction(std::shared_ptr<Function> function, bool allow_overwrite = false);
|
|
|
|
/// \brief Add aliases for the given function name. Returns Status::KeyError if the
|
|
/// function with the given name is not registered
|
|
Status AddAlias(const std::string& target_name, const std::string& source_name);
|
|
|
|
/// \brief Add a new function options type to the registry. Returns Status::KeyError if
|
|
/// a function options type with the same name is already registered
|
|
Status AddFunctionOptionsType(const FunctionOptionsType* options_type,
|
|
bool allow_overwrite = false);
|
|
|
|
/// \brief Retrieve a function by name from the registry
|
|
Result<std::shared_ptr<Function>> GetFunction(const std::string& name) const;
|
|
|
|
/// \brief Return vector of all entry names in the registry. Helpful for
|
|
/// displaying a manifest of available functions
|
|
std::vector<std::string> GetFunctionNames() const;
|
|
|
|
/// \brief Retrieve a function options type by name from the registry
|
|
Result<const FunctionOptionsType*> GetFunctionOptionsType(
|
|
const std::string& name) const;
|
|
|
|
/// \brief The number of currently registered functions
|
|
int num_functions() const;
|
|
|
|
private:
|
|
FunctionRegistry();
|
|
|
|
// Use PIMPL pattern to not have std::unordered_map here
|
|
class FunctionRegistryImpl;
|
|
std::unique_ptr<FunctionRegistryImpl> impl_;
|
|
};
|
|
|
|
/// \brief Return the process-global function registry
|
|
ARROW_EXPORT FunctionRegistry* GetFunctionRegistry();
|
|
|
|
} // namespace compute
|
|
} // namespace arrow
|