From 920cfbfa998ca9d04cce5f7731aced7e950a3477 Mon Sep 17 00:00:00 2001 From: rsgowman Date: Fri, 13 Jul 2018 16:22:07 -0400 Subject: Initial (incomplete) implementation of f:f:core::Filter (#1495) And RelationFilter subclass. Used to implement the next step in core::Query. --- .../src/firebase/firestore/core/relation_filter.h | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Firestore/core/src/firebase/firestore/core/relation_filter.h (limited to 'Firestore/core/src/firebase/firestore/core/relation_filter.h') diff --git a/Firestore/core/src/firebase/firestore/core/relation_filter.h b/Firestore/core/src/firebase/firestore/core/relation_filter.h new file mode 100644 index 0000000..94da208 --- /dev/null +++ b/Firestore/core/src/firebase/firestore/core/relation_filter.h @@ -0,0 +1,59 @@ +/* + * 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 + +#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_ -- cgit v1.2.3