Struct Schema 

pub struct Schema {
    pub fields: Vec<FieldDef>,
}

Ordered list of field definitions for a dataset.

Fields

fields: Vec<FieldDef>

Implementations

impl Schema

pub fn fields_of_kind(&self, kind: FieldKind) -> impl Iterator<Item = &str>

Iterate over field names that match a given kind.

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

Return the position of a field by name, or None if absent.

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for Schema

fn clone(&self) -> Schema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Schema

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Schema

fn deserialize<__D>( __deserializer: __D, ) -> Result<Schema, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Schema

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

where __S: Serializer,

Serialize this value into the given Serde serializer.