Struct Meta 

pub struct Meta {
    pub author: Identity,
    pub origin_system: String,
    pub created: i64,
    pub updated: i64,
    pub labels: BTreeMap<String, String>,
}

Provenance and labels for a record.

Fields

author: Identity

origin_system: String

created: i64

When this record was first written, in ms since the Unix epoch. Stamped by the store and carried across every edit; a recreation over a tombstone starts a new one, because that is a new record at an old key (gonzalo#293).

updated: i64

When this record was last written, in ms since the Unix epoch. Stamped by the store, including on a delete, where it equals the tombstone’s deleted_at. A replication write keeps the source’s times rather than restamping, so syncing is not an edit.

labels: BTreeMap<String, String>

Implementations

impl Meta

pub fn new(author: Identity, origin_system: impl Into<String>) -> Self

Provenance for a write by author from origin_system, with no labels.

created and updated are left at 0 and the store stamps them on write (gonzalo#293), so there is nothing useful to pass here. Set the fields directly for labels.

Trait Implementations

impl Clone for Meta

fn clone(&self) -> Meta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Meta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Meta

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Meta

impl PartialEq for Meta

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Meta

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 Meta