Struct Delta 

pub struct Delta {
    pub document_id: DocumentID,
    pub fields: HashMap<FieldPath, Field>,
    pub version: VectorClock,
}

Represents changes between two document states

Contains only the fields that changed, making network transmission efficient. A delta can be applied to a document to update it to a new state.

Fields

document_id: DocumentID

Document this delta applies to

fields: HashMap<FieldPath, Field>

Changed fields (only includes fields that differ)

version: VectorClock

Vector clock after applying this delta

Implementations

impl Delta

pub fn new( document_id: DocumentID, fields: HashMap<FieldPath, Field>, version: VectorClock, ) -> Self

Create a new delta

pub fn empty(document_id: DocumentID, version: VectorClock) -> Self

Create an empty delta (no changes)

pub fn is_empty(&self) -> bool

Check if delta is empty (no changes)

pub fn len(&self) -> usize

Get the number of changed fields

Trait Implementations

impl Clone for Delta

fn clone(&self) -> Delta

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Delta

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Delta

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Delta

fn eq(&self, other: &Delta) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Delta

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Delta