Struct FieldSchema 

pub struct FieldSchema {
    pub field_type: String,
    pub enum_values: Vec<Value>,
    pub min: Option<f64>,
    pub max: Option<f64>,
    pub default: Option<Value>,
    pub default_expr: Option<String>,
}

Schema for a single field.

Fields

field_type: String

enum_values: Vec<Value>

min: Option<f64>

max: Option<f64>

default: Option<Value>

Static default applied when a record is created without an explicit value for this field. Validated against field_type and enum_values at schema load time, so bad defaults fail loudly rather than silently landing in user files.

default_expr: Option<String>

Dynamic default — one of the closed enum values today, now, epoch. Resolved at the moment a record is created, not at schema load. Mutually exclusive with default.

Trait Implementations

impl Clone for FieldSchema

fn clone(&self) -> FieldSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldSchema

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FieldSchema

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FieldSchema

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

where __S: Serializer,

Serialize this value into the given Serde serializer.