Trait CatalogObjectAllocator 

pub trait CatalogObjectAllocator {
    // Required methods
    fn allocate_object_id(
        &mut self,
        kind: &str,
    ) -> ConstraintMetadataResult<[u8; 16]>;
    fn allocate_catalog_oid(
        &mut self,
        class: CatalogOidClass,
        object_id: &[u8; 16],
    ) -> ConstraintMetadataResult<i64>;

    // Provided method
    fn include_catalog_identity(
        &mut self,
        _relation: &RelationIdentity,
        _class: CatalogOidClass,
        _identity: ConstraintCatalogIdentity,
    ) -> ConstraintMetadataResult<()> { ... }
}

Declaration normalization requests identities from its caller. Execution reserves public addresses; isolated declarations and initial migration can derive candidates before validating the complete catalog.

Required Methods

fn allocate_object_id( &mut self, kind: &str, ) -> ConstraintMetadataResult<[u8; 16]>

fn allocate_catalog_oid( &mut self, class: CatalogOidClass, object_id: &[u8; 16], ) -> ConstraintMetadataResult<i64>

Provided Methods

fn include_catalog_identity( &mut self, _relation: &RelationIdentity, _class: CatalogOidClass, _identity: ConstraintCatalogIdentity, ) -> ConstraintMetadataResult<()>

Validate the owning relation and reserve supplied addresses before allocating another row.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<F> CatalogObjectAllocator for F

where F: FnMut(&str) -> ConstraintMetadataResult<[u8; 16]>,