objectMongoDB

mongodb database connection object

usedb.openordb.openMongoDBCreated, created by:

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var mdb = db.openMongoDB("mongodb://host/db");

inheritance relationship

operator

operator[String]

Quickly get the specified collection access object

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readonly MongoCollection MongoDB[String];

Used to quickly get collection objects using attributes, for example:

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var test = mdb.test;

member function

getCollection

Get the specified collection access object

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MongoCollection MongoDB.getCollection(String name);

Call parameters:

• name: String, the name of the specified collection

return result:

• MongoCollection, returns the specified collection object

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runCommand

Specifies a MongoDB database command

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Object MongoDB.runCommand(Object cmd);

Call parameters:

• cmd: Object, a dictionary object specifying commands and parameters

return result:

• Object, returns the command execution result

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Specify a simple MongoDB database command

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Object MongoDB.runCommand(String cmd,
    Value arg);

Call parameters:

• cmd: String, specifies the command name
• arg: Value, specifies the command parameter

return result:

• Object, returns the command execution result

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oid

Generate a mongodb _objectid object

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MongoID MongoDB.oid(String hexStr = "");

Call parameters:

• hexStr: String, initialize a hexadecimal string, generate a new id by default

return result:

• MongoID, the new _objectid object

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close

close the current database connection

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MongoDB.close() async;

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toString

Return the string representation of the object, generally return "[Native Object]", the object can be reimplemented according to its own characteristics

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String MongoDB.toString();

return result:

• String, returns a string representation of the object

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toJSON

Returns the JSON format representation of the object, generally returns a collection of readable properties defined by the object

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Value MongoDB.toJSON(String key = "");

Call parameters:

• key: String, not used

return result:

• Value, which returns a JSON-serializable value