Struct vega_lite_4::Lookup

pub struct Lookup {
    pub data: Option<Data>,
    pub fields: Option<Vec<String>>,
    pub key: Option<String>,
    pub selection: Option<String>,
}

Data source or selection for secondary data reference.

Fields

data: Option<Data>

Secondary data source to lookup in.

fields: Option<Vec<String>>

Fields in foreign data or selection to lookup. If not specified, the entire object is queried.

key: Option<String>

Key in data to lookup.

selection: Option<String>

Selection name to look up.

Trait Implementations

impl Clone for Lookup

fn clone(&self) -> Lookup

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Lookup

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

Formats the value using the given formatter.

impl Default for Lookup

fn default() -> Lookup

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for Lookup

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

Deserialize this value from the given Serde deserializer.

impl Serialize for Lookup

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

Serialize this value into the given Serde serializer.