The MongoDB\Driver\Manager class

(mongodb >=1.0.0)

Einführung

The MongoDB\Driver\Manager is the main entry point to the extension. It is responsible for maintaining connections to MongoDB (be it standalone server, replica set, or sharded cluster).

No connection to MongoDB is made upon instantiating the Manager. This means the MongoDB\Driver\Manager can always be constructed, even though one or more MongoDB servers are down.

Any write or query can throw connection exceptions as connections are created lazily. A MongoDB server may also become unavailable during the life time of the script. It is therefore important that all actions on the Manager to be wrapped in try/catch statements.

Klassenbeschreibung

final class MongoDB\Driver\Manager {

/* Methoden */

final public function addSubscriber(MongoDB\Driver\Monitoring\Subscriber $subscriber): void

final public function __construct(?string $uri = null, ?array $uriOptions = null, ?array $driverOptions = null)

final public function createClientEncryption(array $options): MongoDB\Driver\ClientEncryption

final public function executeBulkWrite(string $namespace, MongoDB\Driver\BulkWrite $bulk, ?array $options = null): MongoDB\Driver\WriteResult

final public function executeBulkWriteCommand(MongoDB\Driver\BulkWriteCommand $bulk, ?array $options = null): MongoDB\Driver\BulkWriteCommandResult

final public function executeCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor

final public function executeQuery(string $namespace, MongoDB\Driver\Query $query, ?array $options = null): MongoDB\Driver\Cursor

final public function executeReadCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor

final public function executeReadWriteCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor

final public function executeWriteCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor

final public function getEncryptedFieldsMap(): array|object|null

final public function getReadConcern(): MongoDB\Driver\ReadConcern

final public function getReadPreference(): MongoDB\Driver\ReadPreference

final public function getServers(): array

final public function getWriteConcern(): MongoDB\Driver\WriteConcern

final public function removeSubscriber(MongoDB\Driver\Monitoring\Subscriber $subscriber): void

final public function selectServer(?MongoDB\Driver\ReadPreference $readPreference = null): MongoDB\Driver\Server

final public function startSession(?array $options = null): MongoDB\Driver\Session

}

Beispiele

Beispiel #1 MongoDB\Driver\Manager::__construct() basic example

var_dump()ing a MongoDB\Driver\Manager will print out various details about the manager that are otherwise not normally exposed. This can be useful to debug how the driver views your MongoDB setup, and which options are used.

<?php

$manager = new MongoDB\Driver\Manager('mongodb://localhost:27017');
var_dump($manager);

?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

object(MongoDB\Driver\Manager)#1 (2) {
  ["uri"]=>
  string(26) "mongodb://127.0.0.1:27017/"
  ["cluster"]=>
  array(0) {
  }
}

Inhaltsverzeichnis

MongoDB\Driver\Manager::addSubscriber — Registers a monitoring event subscriber with this Manager
MongoDB\Driver\Manager::__construct — Create new MongoDB Manager
MongoDB\Driver\Manager::createClientEncryption — Create a new ClientEncryption object
MongoDB\Driver\Manager::executeBulkWrite — Execute one or more write operations
MongoDB\Driver\Manager::executeBulkWriteCommand — Execute write operations using the bulkWrite command
MongoDB\Driver\Manager::executeCommand — Execute a database command
MongoDB\Driver\Manager::executeQuery — Execute a database query
MongoDB\Driver\Manager::executeReadCommand — Execute a database command that reads
MongoDB\Driver\Manager::executeReadWriteCommand — Execute a database command that reads and writes
MongoDB\Driver\Manager::executeWriteCommand — Execute a database command that writes
MongoDB\Driver\Manager::getEncryptedFieldsMap — Return the encryptedFieldsMap auto encryption option for the Manager
MongoDB\Driver\Manager::getReadConcern — Return the ReadConcern for the Manager
MongoDB\Driver\Manager::getReadPreference — Return the ReadPreference for the Manager
MongoDB\Driver\Manager::getServers — Return the servers to which this manager is connected
MongoDB\Driver\Manager::getWriteConcern — Return the WriteConcern for the Manager
MongoDB\Driver\Manager::removeSubscriber — Unregisters a monitoring event subscriber with this Manager
MongoDB\Driver\Manager::selectServer — Select a server matching a read preference
MongoDB\Driver\Manager::startSession — Start a new client session for use with this client

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User Contributed Notes 1 note

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mike at eastghost dot com ¶

7 years ago

According to Mongo, this (i.e., MongoDB\Driver\Manager) is an "entry point" for the extension:

"This class serves as an entry point for the MongoDB PHP Library. It is the preferred class for connecting to a MongoDB server or cluster of servers and acts as a gateway for accessing individual databases and collections. MongoDB\Client is analogous to the driver’s MongoDB\Driver\Manager class, which it composes."

copied from here: https://docs.mongodb.com/php-library/master/reference/class/MongoDBClient/

However, any comparison of the "mongodb" docs here on php.net versus the "mongodb driver" docs on mongo's site shows dramatic and ever-changing differences.

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