Enum DeclaredForeignKey 

pub enum DeclaredForeignKey {
    Column(usize),
    Table(usize),
}

A foreign key of a declaration, by the catalog row it publishes.

Variants

Column(usize)

Table(usize)

Implementations

impl DeclaredForeignKey

pub fn by_catalog_identity( columns: &[ColumnDef], constraints: &TableConstraintSet, identity: ConstraintCatalogIdentity, ) -> Option<Self>

The foreign key of the declaration whose catalog row is identity.

pub fn by_family( columns: &[ColumnDef], constraints: &TableConstraintSet, object_id: [u8; 16], ) -> Option<Self>

The foreign key of the declaration that belongs to the family object_id.

pub fn foreign_key( self, columns: &[ColumnDef], constraints: &TableConstraintSet, ) -> Option<ForeignKey>

The foreign key with its stored targets, as a table-level declaration.

pub fn validated( self, columns: &[ColumnDef], constraints: &TableConstraintSet, ) -> bool

pub fn set_validated( self, columns: &mut [ColumnDef], constraints: &mut TableConstraintSet, validated: bool, )

pub fn alter( self, columns: &mut [ColumnDef], constraints: &mut TableConstraintSet, enforceability: Option<bool>, deferrability: Option<(bool, bool)>, ) -> bool

Apply an ALTER CONSTRAINT enforceability and deferrability change. A foreign key that stops being enforced is no longer valid, and one that becomes enforced is not valid until its rows are validated; reports whether it became enforced.

pub fn set_family( self, columns: &mut [ColumnDef], constraints: &mut TableConstraintSet, object_id: [u8; 16], )

Trait Implementations

impl Clone for DeclaredForeignKey

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DeclaredForeignKey

impl Debug for DeclaredForeignKey

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

Formats the value using the given formatter.

impl Eq for DeclaredForeignKey

impl PartialEq for DeclaredForeignKey

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DeclaredForeignKey