Struct ConstraintCatalog 

pub struct ConstraintCatalog { /* private fields */ }

Implementations

impl ConstraintCatalog

pub fn list(&self) -> Vec<ConstraintDefinition>

pub fn get(&self, name: &str) -> Option<&ConstraintDefinition>

pub fn contains_name(&self, name: &str) -> bool

pub fn constraint_owning_index( &self, index_name: &str, ) -> Option<&ConstraintDefinition>

pub fn iter(&self) -> impl Iterator<Item = &ConstraintDefinition>

Iterate the catalog in stored order. Useful for enforcement scans that need to know which constraints apply to a (label, prop) tuple.

pub fn find_equivalent( &self, request: &ConstraintRequest, ) -> Option<&ConstraintDefinition>

Looks for an exact-shape match (same kind, entity, label, props, and type for property-type constraints). Property order matters — (a, b) and (b, a) are different constraints.

pub fn find_same_schema( &self, request: &ConstraintRequest, ) -> Option<&ConstraintDefinition>

Looks for any constraint on the same (entity, label, properties) schema regardless of kind. Used for 22N66 conflict detection — e.g. uniqueness vs. node-key on the same schema.

pub fn try_create( &mut self, request: ConstraintRequest, if_not_exists: bool, ) -> Result<CreateConstraintOutcome, CreateConstraintError>

pub fn try_drop( &mut self, name: &str, if_exists: bool, ) -> Result<DropConstraintOutcome, DropConstraintError>

Trait Implementations

impl Clone for ConstraintCatalog

fn clone(&self) -> ConstraintCatalog

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintCatalog

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

Formats the value using the given formatter.

impl Default for ConstraintCatalog

fn default() -> ConstraintCatalog

Returns the “default value” for a type.