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scylladb/cql3/variable_specifications.hh

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/*
* 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.
*/
/*
* Copyright 2015 Cloudius Systems
*
* Modified by Cloudius Systems
*/
#ifndef CQL3_VARIABLE_SPECIFICATIONS_HH
#define CQL3_VARIABLE_SPECIFICATIONS_HH
#include "cql3/column_specification.hh"
#include "cql3/column_identifier.hh"
#include <experimental/optional>
#include <vector>
namespace cql3 {
class variable_specifications final {
private:
std::vector<shared_ptr<column_identifier>> _variable_names;
std::vector<::shared_ptr<column_specification>> _specs;
public:
variable_specifications(const std::vector<::shared_ptr<column_identifier>>& variable_names)
: _variable_names{variable_names}
, _specs{variable_names.size()}
{ }
/**
* Returns an empty instance of <code>VariableSpecifications</code>.
* @return an empty instance of <code>VariableSpecifications</code>
*/
static ::shared_ptr<variable_specifications> empty() {
return ::make_shared<variable_specifications>(std::vector<::shared_ptr<column_identifier>>{});
}
size_t size() const {
return _variable_names.size();
}
std::vector<::shared_ptr<column_specification>> get_specifications() const & {
return std::vector<::shared_ptr<column_specification>>(_specs.begin(), _specs.end());
}
std::vector<::shared_ptr<column_specification>> get_specifications() && {
return std::move(_specs);
}
void add(int32_t bind_index, ::shared_ptr<column_specification> spec) {
auto name = _variable_names[bind_index];
// Use the user name, if there is one
if (name) {
spec = ::make_shared<column_specification>(spec->ks_name, spec->cf_name, name, spec->type);
}
_specs[bind_index] = spec;
}
#if 0
@Override
public String toString()
{
return Arrays.toString(specs);
}
#endif
};
}
#endif