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);

Constructors

ObjectId()

Creates ObjectId.

ObjectId.fromBytes(List<int> bytes)

Creates ObjectId from bytes.

ObjectId.fromHexString(String hexString)

Creates ObjectId from hex string.

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 setter, override

hexString → String

Returns hex string for current ObjectId.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

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

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.