Struct RegisteredEdge 

pub struct RegisteredEdge {
    pub id: EdgeId,
    pub source_table: TableId,
    pub target_table: TableId,
    pub source_column: String,
    pub target_column: String,
    pub schema: String,
    pub name: String,
}

Registered directed edge between two node tables.

Fields

id: EdgeId

Stable edge id assigned at registration time.

source_table: TableId

Source endpoint table.

target_table: TableId

Target endpoint table.

source_column: String

Source foreign-key column on the edge table.

target_column: String

Target foreign-key column on the edge table.

schema: String

Edge table schema.

name: String

Edge table name.

Implementations

impl RegisteredEdge

pub fn edge_scan_sql(&self, catalog: &Catalog) -> Result<String, CatalogError>

Builds a validated SELECT that resolves endpoint NodeKey primary-key values.

When endpoints reference different registered tables, the scan joins each node table on the edge foreign-key columns. When both endpoints use the same registered table and edge columns store that table’s primary-key values directly, a single-table scan is used.

Errors

Returns CatalogError::InvalidSqlIdent when any identifier is unsafe, or CatalogError::MissingTable when endpoint tables are not registered.

Performance

This method is O(i) where i is total identifier length.

Trait Implementations

impl Clone for RegisteredEdge

fn clone(&self) -> RegisteredEdge

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RegisteredEdge

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RegisteredEdge

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for RegisteredEdge

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for RegisteredEdge

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for RegisteredEdge

impl StructuralPartialEq for RegisteredEdge