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/*
* Copyright 2018 Google
*
* 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.
*/
#ifndef FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_CORE_RELATION_FILTER_H_
#define FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_CORE_RELATION_FILTER_H_
#include <string>
#include "Firestore/core/src/firebase/firestore/core/filter.h"
#include "Firestore/core/src/firebase/firestore/model/document.h"
#include "Firestore/core/src/firebase/firestore/model/field_path.h"
#include "Firestore/core/src/firebase/firestore/model/field_value.h"
namespace firebase {
namespace firestore {
namespace core {
/** Represents a filter to be applied to the query. */
class RelationFilter : public Filter {
public:
/**
* Creates a new filter that compares fields and values. Only intended to be
* called from Filter::Create().
*/
RelationFilter(model::FieldPath field, Operator op, model::FieldValue value);
const model::FieldPath& field() const override;
bool Matches(const model::Document& doc) const override;
std::string CanonicalId() const override;
private:
bool MatchesValue(const model::FieldValue& other) const;
bool MatchesComparison(const model::FieldValue& other) const;
const model::FieldPath field_;
const Operator op_;
const model::FieldValue value_;
};
} // namespace core
} // namespace firestore
} // namespace firebase
#endif // FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_CORE_RELATION_FILTER_H_
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