DbRefResolver::resolve()
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<?php
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declare(strict_types=1);
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/**
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 * Minotaur
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
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 * use this file except in compliance with the License. You may obtain a copy of
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 * the License at
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 *
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 * http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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 * License for the specific language governing permissions and limitations under
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 * the License.
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 *
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 * @copyright 2015-2017 Appertly
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 * @license   Apache-2.0
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 */
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namespace Minotaur\Db;
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/**
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 * Resolves DbRef objects
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 */
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interface DbRefResolver
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{
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    /**
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     * Gets whether or not this class supports the reference type.
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     *
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     * @param $ref - The reference type (usually a MongoDB collection name)
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     * @return - `true` if the reference type is supported
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     */
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    public function isResolvable(string $ref): bool;
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    /**
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     * Resolves a MongoDB DbRef.
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     *
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     * @param array<string,mixed> $ref - The DbRef to load
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     * @return - The loaded entity or `null` if not found
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     * @throws \InvalidArgumentException If `$ref` is of an unsupported type
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     * @throws \Caridea\Dao\Exception\Unreachable If the connection fails
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     * @throws \Caridea\Dao\Exception\Unretrievable If the result cannot be retrieved
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     * @throws \Caridea\Dao\Exception\Generic If any other database problem occurs
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     */
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    public function resolve(array $ref);
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    /**
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     * Resolves a MongoDB DbRef.
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     *
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     * @param iterable<array<string,mixed>> $refs The DbRefs to load
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     * @return \Traversable<mixed> The loaded entities
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     * @throws \InvalidArgumentException If any `$ref`s are of an unsupported type
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     * @throws \Caridea\Dao\Exception\Unreachable If the connection fails
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     * @throws \Caridea\Dao\Exception\Unretrievable If the result cannot be retrieved
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     * @throws \Caridea\Dao\Exception\Generic If any other database problem occurs
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     */
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    public function resolveAll(iterable $refs): iterable;
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}
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