Struct gapi_grpc::google::cloud::datacatalog::v1::ColumnSchema

pub struct ColumnSchema {
    pub column: String,
    pub type: String,
    pub description: String,
    pub mode: String,
    pub subcolumns: Vec<ColumnSchema>,
}

Representation of a column within a schema. Columns could be nested inside other columns.

Fields

column: String

Required. Name of the column.

Must be a UTF-8 string without dots (.). The maximum size is 64 bytes.

type: String

Required. Type of the column.

Must be a UTF-8 string with the maximum size of 128 bytes.

description: String

Optional. Description of the column. Default value is an empty string.

The description must be a UTF-8 string with the maximum size of 2000 bytes.

mode: String

Optional. A column’s mode indicates if values in this column are required, nullable, or repeated.

Only NULLABLE, REQUIRED, and REPEATED values are supported. Default mode is NULLABLE.

subcolumns: Vec<ColumnSchema>

Optional. Schema of sub-columns. A column can have zero or more sub-columns.

Trait Implementations

impl Clone for ColumnSchema

fn clone(&self) -> ColumnSchema

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnSchema

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

Formats the value using the given formatter.

impl Default for ColumnSchema

fn default() -> ColumnSchema

Returns the “default value” for a type.

impl Message for ColumnSchema

fn encode_raw<B>(&self, buf: &mut B) where
    B: BufMut, 

fn merge_field<B>(
    &mut self,
    tag: u32,
    wire_type: WireType,
    buf: &mut B,
    ctx: DecodeContext
) -> Result<(), DecodeError> where
    B: Buf, 

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

pub fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError> where
    B: BufMut, 

Encodes the message to a buffer.

pub fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError> where
    B: BufMut, 

Encodes the message with a length-delimiter to a buffer.

pub fn decode<B>(buf: B) -> Result<Self, DecodeError> where
    Self: Default,
    B: Buf, 

Decodes an instance of the message from a buffer.

pub fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
    Self: Default,
    B: Buf, 

Decodes a length-delimited instance of the message from the buffer.

pub fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError> where
    B: Buf, 

Decodes an instance of the message from a buffer, and merges it into self.

pub fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError> where
    B: Buf, 

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq<ColumnSchema> for ColumnSchema

fn eq(&self, other: &ColumnSchema) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &ColumnSchema) -> bool

This method tests for !=.

impl StructuralPartialEq for ColumnSchema