Struct RelationFragment 

pub struct RelationFragment { /* private fields */ }

One source-owned relation definition.

Implementations

impl RelationFragment

pub fn try_new( name: SchemaName, local_fields: Vec<FieldSourceKey>, target_entity: EntitySourceKey, target_fields: Vec<FieldSourceKey>, on_delete: RelationDeleteAction, ) -> Result<RelationFragment, SchemaContractError>

Construct one relation with ordered source/target components.

Errors

Returns a typed reference-list error for empty or arity-mismatched components.

pub const fn source_key(&self) -> &RelationSourceKey

Borrow the typed proposal key derived from the current relation name.

pub const fn name(&self) -> &SchemaName

Borrow the current relation name.

pub fn local_fields(&self) -> &[FieldSourceKey]

Borrow ordered source fields.

pub const fn target_entity(&self) -> &EntitySourceKey

Borrow the target entity source key.

pub fn target_fields(&self) -> &[FieldSourceKey]

Borrow ordered target fields.

pub const fn on_delete(&self) -> RelationDeleteAction

Return the maintained delete action.

Trait Implementations

impl Clone for RelationFragment

fn clone(&self) -> RelationFragment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RelationFragment

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

Formats the value using the given formatter.

impl Eq for RelationFragment

impl PartialEq for RelationFragment

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RelationFragment