IReadOnlyForeignKey Interface

Gets the dependent entity type. This may be different from the type that Properties are defined on when the relationship is defined a derived type in an inheritance hierarchy (since the properties may be defined on a base type).

Gets a value indicating how a delete operation is applied to dependent entities in the relationship when the principal is deleted or the relationship is severed.

Gets the navigation property on the dependent entity type that points to the principal entity.

Gets a value indicating whether the relationship is constrained, that is, backed by a guarantee (such as a database foreign key constraint) that a matching principal key exists for every set foreign key value. When false, no database foreign key constraint is created and queries treat the relationship as optional even when the foreign key properties are non-nullable — the principal is loaded with a left join and is never assumed to exist. This does not affect change tracking: a required (IsRequired) relationship still cascades or produces a conceptual null when severed, regardless of this value.

Gets a value indicating whether this relationship defines an ownership. If true, the dependent entity must always be accessed via the navigation from the principal entity.

Gets a value indicating whether the principal entity is required. If true, the dependent entity must always be assigned to a valid principal entity.

Gets a value indicating whether the dependent entity is required. If true, the principal entity must always have a valid dependent entity assigned.

Gets a value indicating whether the values assigned to the foreign key properties are unique.

Gets the value of the annotation with the given name, returning null if it does not exist.

Gets the principal entity type that this relationship targets. This may be different from the type that PrincipalKey is defined on when the relationship targets a derived type in an inheritance hierarchy (since the key is defined on the base type of the hierarchy).

Gets the primary or alternate key that the relationship targets.

Gets the navigation property on the principal entity type that points to the dependent entity.

Gets the foreign key properties in the dependent entity.

Gets the debug string for all annotations declared on the object.

Gets the annotation with the given name, returning null if it does not exist.

Gets the annotation with the given name, throwing if it does not exist.

Gets all annotations on the current object.

Returns a navigation associated with this foreign key.

Gets the skip navigations using this foreign key.

Gets the entity type related to the given one.

Returns a value indicating whether the foreign key is defined on the primary key and pointing to the same primary key.

Returns a value indicating whether a set value for this foreign key is guaranteed to reference an existing principal — that is, the relationship is both required (IsRequired) and constrained (IsConstrained). Query consults this to decide whether a dependent-to-principal navigation can be expanded with an inner join (and whether such a join can be pruned); an unconstrained relationship is always treated as optional even when its foreign key properties are non-nullable.

Creates a human-readable representation of the given metadata.

Warning: Do not rely on the format of the returned string. It is designed for debugging only and may change arbitrarily between releases.

Finds the first IForeignKey that is mapped to the same constraint in a shared table-like object.

This method is typically used by database providers (and other extensions). It is generally not used in application code.

Returns the foreign key constraint name.

Returns the foreign key constraint name.

Returns the default constraint name that would be used for this foreign key.

Returns the default constraint name that would be used for this foreign key.

Returns a value indicating whether the foreign key constraint is excluded from migrations.

Returns a value indicating whether this foreign key is between two entity types sharing the same table-like store object.