Struct FileColumn 

pub struct FileColumn { /* private fields */ }

A column holding a file’s id, or NULL (§17.2, E2). It references the file as a foreign key references its parent.

Implementations

impl FileColumn

pub fn new(column: impl Into<String>) -> FileColumn

A trailing file reference held in column.

pub fn bound(self) -> FileColumn

Bound, naming files of at most BOUND_FILE_LIMIT bytes (§17.4).

pub fn bound_with_limit(self, limit: u64) -> FileColumn

Bound, naming files of at most limit bytes (§17.4).

pub fn write_once(self) -> FileColumn

Refuse a write that changes the reference once it names a file.

pub fn column(&self) -> &str

The column exactly as declared.

pub fn binding(&self) -> &Binding

When a write setting the reference goes out.

pub fn is_write_once(&self) -> bool

Whether a reference, once it names a file, can’t change.

Trait Implementations

impl Clone for FileColumn

fn clone(&self) -> FileColumn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileColumn

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

Formats the value using the given formatter.

impl PartialEq for FileColumn

fn eq(&self, other: &FileColumn) -> 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 Eq for FileColumn

impl StructuralPartialEq for FileColumn