The MongoDB\Driver\Manager class
(mongodb >=1.0.0)
簡介
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.
類摘要
$uri = "mongodb://127.0.0.1/", array $uriOptions = array(), array $driverOptions = array())$namespace, MongoDB\Driver\BulkWrite $bulk, array $options = array()): MongoDB\Driver\WriteResult$db, MongoDB\Driver\Command $command, array $options = array()): MongoDB\Driver\Cursor$namespace, MongoDB\Driver\Query $query, array $options = array()): MongoDB\Driver\Cursor$db, MongoDB\Driver\Command $command, array $options = array()): MongoDB\Driver\Cursor$db, MongoDB\Driver\Command $command, array $options = array()): MongoDB\Driver\Cursor$db, MongoDB\Driver\Command $command, array $options = array()): MongoDB\Driver\Cursor$readPreference = null): MongoDB\Driver\Server範例
示例 #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);
?>
以上例程的輸出類似於：
object(MongoDB\Driver\Manager)#1 (2) {
["uri"]=>
string(26) "mongodb://127.0.0.1:27017/"
["cluster"]=>
array(0) {
}
}
目錄
- 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::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