ObjectId class

ObjectId

This class allows you to create and manipulate bson ObjectIds.

Example:

final id = ObjectId();
final id2 = ObjectId.fromHexString('5f527e9b350aa5f9709daf16');
final id3 = ObjectId.fromBytes(
  [95, 82, 126, 187, 124, 177, 57, 83, 165, 119, 211, 48],
);
final id4 = ObjectId.fromValues(timestamp, processUnique, counter);
Available extensions

Constructors

ObjectId()
Creates ObjectId instance.
ObjectId.fromBytes(List<int> bytes)
Creates ObjectId from bytes.
ObjectId.fromHexString(String hexString)
Creates ObjectId from hex string.
ObjectId.fromJson(String json)
Creates ObjectId from a JSON string.
factory
ObjectId.fromTimestamp(DateTime timestamp)
Creates ObjectId from provided timestamp.
ObjectId.fromValues(int millisecondsSinceEpoch, int processUnique, int counter)
Creates ObjectId from provided values.

Properties

bytes Uint8List
ObjectId bytes.
no setter
hashCode int
The hash code for this object.
no setteroverride
hexString String
Returns hex string for current ObjectId.
no setter
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
timestamp DateTime
Returns the generation date (accurate up to the second) that this ObjectId was generated.
no setter

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toEJson() EJsonValue?

Available on ObjectId, provided by the ObjectIdEJsonEncoderExtension extension

Converts this ObjectId to EJson
toJson() → dynamic
toString() String
A string representation of this object.
override

Operators

operator ==(Object other) bool
The equality operator.
override

Static Methods

isValid(String hexString) bool
Whether hexString is a valid ObjectId

Constants

byteLength → const int
Length of the ObjectId in bytes.
hexStringLength → const int
Length of the ObjectId hexString.