Struct dbkit_engine::schema::Schema

pub struct Schema { /* fields omitted */ }

Describes the attributes and organization of data

Methods

impl Schema

fn from_slice(attrs: &[Attribute]) -> Result<Schema, DBError>

fn from_vec(attrs: Vec<Attribute>) -> Result<Schema, DBError>

fn from_attr(attr: Attribute) -> Schema

Create a single Attribute schema from an external attribute

fn make_one_attr<S: Into<String>>(
    name: S,
    nullable: bool,
    dtype: Type
) -> Schema

Create a single Attribute schema

fn count(&self) -> usize

fn exists(&self, name: &str) -> Option<usize>

fn exists_ok(&self, name: &str) -> Result<usize, DBError>

fn get(&self, pos: usize) -> Result<&Attribute, DBError>

fn find(&self, name: &str) -> Result<&Attribute, DBError>

fn iter(&self) -> AttributeIter

Trait Implementations

impl Clone for Schema

fn clone(&self) -> Schema

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Schema

fn default() -> Schema

Returns the "default value" for a type.