Enum MetaBackend 

pub enum MetaBackend {
    Mem,
    Sql,
    Sqlite,
    Postgres,
    Mysql,
}

Variants

Mem

Sql

Sqlite

Postgres

Mysql

Trait Implementations

impl Clone for MetaBackend

fn clone(&self) -> MetaBackend

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetaBackend

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

Formats the value using the given formatter.

impl Default for MetaBackend

fn default() -> MetaBackend

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetaBackend

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MetaBackend

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ValueEnum for MetaBackend

fn value_variants<'a>() -> &'a [Self]

All possible argument values, in display order.

fn to_possible_value<'a>(&self) -> Option<PossibleValue>

The canonical argument value.

fn from_str(input: &str, ignore_case: bool) -> Result<Self, String>

Parse an argument into Self.

impl Copy for MetaBackend