Struct Backlink

pub struct Backlink {
    pub origin_table_number: usize,
    pub origin_column_number: usize,
    pub row_numbers: Vec<usize>,
}

A backlink to one or more rows in a given table. This is the opposite end of a Link. Note that row_numbers is guaranteed to be non-empty. An empty backlink would be represented as Value::None.

Fields

origin_table_number: usize

The table number of the origin table, in the Realm Group.

origin_column_number: usize

The column number of the origin column, in the Table.

row_numbers: Vec<usize>

The row numbers this backlink points to, i.e. the rows in the origin table that have Links to this row.

Implementations

impl Backlink

pub fn new( origin_table_number: usize, origin_column_number: usize, row_numbers: Vec<usize>, ) -> Self

Trait Implementations

impl Clone for Backlink

fn clone(&self) -> Backlink

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Backlink

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

Formats the value using the given formatter.

impl From<Backlink> for Value

fn from(value: Backlink) -> Self

Converts to this type from the input type.

impl Hash for Backlink

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Backlink

fn eq(&self, other: &Backlink) -> 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<'a> TryFrom<Row<'a>> for Backlink

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: Row<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for Backlink

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl Eq for Backlink

impl StructuralPartialEq for Backlink