DocumentDelta class

Represents a partial update (delta) to a document.

Delta sync only sends changed fields instead of the entire document, reducing bandwidth usage by up to 98% for large documents.

Example:

// Instead of sending entire document:
await collection.save({
  'id': '123',
  'title': 'My Document',
  'content': '... 50KB of content ...',
  'metadata': {...},
  'done': true,  // Only this changed
});

// Send only the changed field:
await collection.update('123', {'done': true});

Constructors

DocumentDelta({required String recordId, required String collectionName, required Map<String, dynamic> changedFields, required DateTime timestamp, required int baseVersion})

const

DocumentDelta.fromJson(Map<String, dynamic> json)

Create from JSON

factory

Properties

baseVersion → int

Version of the document before this delta

final

changedFields → Map<String, dynamic>

Only the fields that changed

final

collectionName → String

The collection name

final

hashCode → int

The hash code for this object.

no setter, inherited

recordId → String

The document ID being updated

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

timestamp → DateTime

Timestamp of the update

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

Convert to JSON for network transmission

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited