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File: DatabaseInfoLegacyIterator.php
<?php /* * Copyright 2015-present MongoDB, Inc. * * 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. */ namespace MongoDB\Model; use ReturnTypeWillChange; use function current; use function key; use function next; use function reset; /** * DatabaseInfoIterator for inline listDatabases command results. * * This iterator may be used to wrap the array returned within the listDatabases * command's single-document result. * * @internal * @see \MongoDB\Client::listDatabases() * @see http://docs.mongodb.org/manual/reference/command/listDatabases/ */ class DatabaseInfoLegacyIterator implements DatabaseInfoIterator { /** @var array */ private $databases; /** * @param array $databases */ public function __construct(array $databases) { $this->databases = $databases; } /** * Return the current element as a DatabaseInfo instance. * * @see DatabaseInfoIterator::current() * @see http://php.net/iterator.current * @return DatabaseInfo */ public function current() { return new DatabaseInfo(current($this->databases)); } /** * Return the key of the current element. * * @see http://php.net/iterator.key * @return integer */ #[ReturnTypeWillChange] public function key() { return key($this->databases); } /** * Move forward to next element. * * @see http://php.net/iterator.next * @return void */ #[ReturnTypeWillChange] public function next() { next($this->databases); } /** * Rewind the Iterator to the first element. * * @see http://php.net/iterator.rewind * @return void */ #[ReturnTypeWillChange] public function rewind() { reset($this->databases); } /** * Checks if current position is valid. * * @see http://php.net/iterator.valid * @return boolean */ #[ReturnTypeWillChange] public function valid() { return key($this->databases) !== null; } }