Enum ChangeEvent 

pub enum ChangeEvent {
    Insert {
        table_name: String,
        row_index: usize,
    },
    Update {
        table_name: String,
        row_index: usize,
    },
    Delete {
        table_name: String,
        row_index: usize,
    },
}

Change event for external subscribers

Note: Only row_id is included, not full row data. This is intentional for performance - cloning full rows on every mutation would be expensive. Subscribers that need row data can re-query using the row_id.

Variants

Insert

A row was inserted

Fields

table_name: String

Name of the table

row_index: usize

Index of the inserted row

Update

A row was updated

Fields

table_name: String

Name of the table

row_index: usize

Index of the updated row

Delete

A row was deleted

Fields

table_name: String

Name of the table

row_index: usize

Index of the deleted row (before deletion)

Implementations

impl ChangeEvent

pub fn table_name(&self) -> &str

Get the table name from the event

pub fn row_index(&self) -> usize

Get the row index from the event

Trait Implementations

impl Clone for ChangeEvent

fn clone(&self) -> ChangeEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChangeEvent

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

Formats the value using the given formatter.

impl Eq for ChangeEvent

impl PartialEq for ChangeEvent

fn eq(&self, other: &ChangeEvent) -> 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 StructuralPartialEq for ChangeEvent