Struct TableFieldSchema 

#[non_exhaustive]
pub struct TableFieldSchema {
    pub field: String,
    pub type: String,
    pub mode: String,
    pub fields: Vec<TableFieldSchema>,
    /* private fields */
}

A field in TableSchema.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

field: String

The field name. The name must contain only letters (a-z, A-Z), numbers (0-9), or underscores (_), and must start with a letter or underscore. The maximum length is 128 characters.

type: String

The field data type. Possible values include

• STRING
• BYTES
• INTEGER
• FLOAT
• BOOLEAN
• TIMESTAMP
• DATE
• TIME
• DATETIME
• GEOGRAPHY,
• NUMERIC,
• BIGNUMERIC,
• RECORD (where RECORD indicates that the field contains a nested schema).

mode: String

The field mode. Possible values include NULLABLE, REQUIRED and REPEATED. The default value is NULLABLE.

fields: Vec<TableFieldSchema>

Describes the nested schema fields if the type property is set to RECORD.

Implementations

impl TableFieldSchema

pub fn new() -> Self

pub fn set_field<T: Into<String>>(self, v: T) -> Self

Sets the value of field.

Example

let x = TableFieldSchema::new().set_field("example");

pub fn set_type<T: Into<String>>(self, v: T) -> Self

Sets the value of r#type.

Example

let x = TableFieldSchema::new().set_type("example");

pub fn set_mode<T: Into<String>>(self, v: T) -> Self

Sets the value of mode.

Example

let x = TableFieldSchema::new().set_mode("example");

pub fn set_fields<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<TableFieldSchema>,

Sets the value of fields.

Example

let x = TableFieldSchema::new()
    .set_fields([
        TableFieldSchema::default()/* use setters */,
        TableFieldSchema::default()/* use (different) setters */,
    ]);

Trait Implementations

impl Clone for TableFieldSchema

fn clone(&self) -> TableFieldSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableFieldSchema

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

Formats the value using the given formatter.

impl Default for TableFieldSchema

fn default() -> TableFieldSchema

Returns the “default value” for a type.

impl Message for TableFieldSchema

fn typename() -> &'static str

The typename of this message.

impl PartialEq for TableFieldSchema

fn eq(&self, other: &TableFieldSchema) -> 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 StructuralPartialEq for TableFieldSchema