Enum HistoryOrigin 

pub enum HistoryOrigin {
    Genesis,
    Restored,
}

How a database history began (docs/reference/version-tokens.md).

Variants

Genesis

The database was created empty, or by an earlier release that had no history: every version it ever issued is in this history.

Restored

The database was restored from a backup. Versions issued before the restore, by the backed-up database or any other restore of it, are not in this history.

Trait Implementations

impl Clone for HistoryOrigin

fn clone(&self) -> HistoryOrigin

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HistoryOrigin

impl Debug for HistoryOrigin

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

Formats the value using the given formatter.

impl Default for HistoryOrigin

fn default() -> HistoryOrigin

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for HistoryOrigin

fn deserialize<__D>( __deserializer: __D, ) -> Result<HistoryOrigin, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for HistoryOrigin

impl PartialEq for HistoryOrigin

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for HistoryOrigin

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for HistoryOrigin