Enum SpecializationStrategy 

pub enum SpecializationStrategy {
    OneTablePerClass,
    SingleTable,
    OneTablePerChild,
}

How to fold a specialization hierarchy into the relational model.

Variants

OneTablePerClass

One table per class: parent stays, each child gets its own table with an FK to the parent. Always safe.

SingleTable

Single table: parent absorbs all child columns, plus a discriminator column. Only valid for total + disjoint specializations.

OneTablePerChild

One table per child: parent disappears, each child gets the parent’s columns inlined. Suitable for total specializations.

Trait Implementations

impl Clone for SpecializationStrategy

fn clone(&self) -> SpecializationStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpecializationStrategy

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

Formats the value using the given formatter.

impl Default for SpecializationStrategy

fn default() -> SpecializationStrategy

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SpecializationStrategy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for SpecializationStrategy

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SpecializationStrategy

fn eq(&self, other: &SpecializationStrategy) -> 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 SpecializationStrategy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for SpecializationStrategy

impl Eq for SpecializationStrategy

impl StructuralPartialEq for SpecializationStrategy