Struct datafusion_proto::generated::datafusion::UnionValue

pub struct UnionValue {
    pub value_id: i32,
    pub value: Option<Box<ScalarValue>>,
    pub fields: Vec<UnionField>,
    pub mode: i32,
}

Fields

value_id: i32

Note that a null union value must have one or more fields, so we encode a null UnionValue as one with value_id == 128

value: Option<Box<ScalarValue>>

fields: Vec<UnionField>

mode: i32

Implementations

impl UnionValue

pub fn mode(&self) -> UnionMode

Returns the enum value of mode, or the default if the field is set to an invalid enum value.

pub fn set_mode(&mut self, value: UnionMode)

Sets mode to the provided enum value.

Trait Implementations

impl Clone for UnionValue

fn clone(&self) -> UnionValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for UnionValue

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

Formats the value using the given formatter.

impl Default for UnionValue

fn default() -> Self

Returns the “default value” for a type.

impl Message for UnionValue

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.

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

where B: BufMut, Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

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

where B: BufMut, Self: Sized,

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

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

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

fn decode<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

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

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

where B: Buf, Self: Sized,

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

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

where B: Buf, Self: Sized,

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

impl PartialEq for UnionValue

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for UnionValue