Enum ContainedKind 

pub enum ContainedKind {
    ContainsOne,
    ContainsMany,
}

Cardinality of a contained relation — records embedded in a column of the parent row. Kept separate from ReferenceKind (which names foreign-key references) so contained relations don’t leak into the foreign-key code paths: a contained relation is not a join, it’s a view onto one column.

Variants

ContainsOne

One record embedded as an object in the host column (e.g. a product’s inventory).

ContainsMany

Many records embedded as an array in the host column (e.g. an order’s lines).

Trait Implementations

impl Clone for ContainedKind

fn clone(&self) -> ContainedKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ContainedKind

impl Debug for ContainedKind

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

Formats the value using the given formatter.

impl Default for ContainedKind

fn default() -> ContainedKind

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ContainedKind

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ContainedKind

impl PartialEq for ContainedKind

fn eq(&self, other: &ContainedKind) -> 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 Serialize for ContainedKind

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 ContainedKind