Struct Change 

pub struct Change<K, V> {
    pub record_id: K,
    pub col_name: Option<ColumnKey>,
    pub value: Option<V>,
    pub col_version: u64,
    pub db_version: u64,
    pub node_id: NodeId,
    pub local_db_version: u64,
    pub flags: u32,
}

Represents a single change in the CRDT.

A change can represent:

• An insertion or update of a column value (when col_name is Some)
• A deletion of a specific column (when col_name is Some and value is None)
• A deletion of an entire record (when col_name is None)

Fields

record_id: K

col_name: Option<ColumnKey>

None represents tombstone of the record

value: Option<V>

None represents deletion of the column (not the record)

col_version: u64

db_version: u64

node_id: NodeId

local_db_version: u64

Local db_version when the change was created (useful for get_changes_since)

flags: u32

Optional flags to indicate the type of change (ephemeral, not stored)

Implementations

impl<K, V> Change<K, V>

pub fn new( record_id: K, col_name: Option<ColumnKey>, value: Option<V>, col_version: u64, db_version: u64, node_id: NodeId, local_db_version: u64, flags: u32, ) -> Self

Creates a new Change with all parameters

Trait Implementations

impl<K: Clone, V: Clone> Clone for Change<K, V>

fn clone(&self) -> Change<K, V>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K: Debug, V: Debug> Debug for Change<K, V>

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

Formats the value using the given formatter.

impl<K: PartialEq, V: PartialEq> PartialEq for Change<K, V>

fn eq(&self, other: &Change<K, V>) -> 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<K: Eq, V: Eq> Eq for Change<K, V>

impl<K, V> StructuralPartialEq for Change<K, V>