Struct arrow::ipc::gen::Message::MessageHeader

#[repr(transparent)]
pub struct MessageHeader(pub u8);

---

The root Message type This union enables us to easily send different message types without redundant storage, and in the future we can easily add new message types.

Arrow implementations do not need to implement all of the message types, which may include experimental metadata types. For maximum compatibility, it is best to send data using RecordBatch

Implementations

impl MessageHeader

pub const NONE: Self

pub const Schema: Self

pub const DictionaryBatch: Self

pub const RecordBatch: Self

pub const Tensor: Self

pub const SparseTensor: Self

pub const ENUM_MIN: u8

pub const ENUM_MAX: u8

pub const ENUM_VALUES: &'static [Self]

pub fn variant_name(self) -> Option<&'static str>

Returns the variant’s name or “” if unknown.

Trait Implementations

impl Clone for MessageHeader

fn clone(&self) -> MessageHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MessageHeader

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

Formats the value using the given formatter.

impl EndianScalar for MessageHeader

fn to_little_endian(self) -> Self

fn from_little_endian(self) -> Self

impl<'a> Follow<'a> for MessageHeader

type Inner = Self

fn follow(buf: &'a [u8], loc: usize) -> Self::Inner

impl Hash for MessageHeader

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for MessageHeader

fn cmp(&self, other: &MessageHeader) -> Ordering

This method returns an Ordering between self and other.

#[must_use]

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<MessageHeader> for MessageHeader

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

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

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

This method tests for !=.

impl PartialOrd<MessageHeader> for MessageHeader

fn partial_cmp(&self, other: &MessageHeader) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

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

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

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

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Push for MessageHeader

type Output = MessageHeader

fn push(&self, dst: &mut [u8], _rest: &[u8])

fn size() -> usize

fn alignment() -> PushAlignment

impl<'a> Verifiable for MessageHeader

fn run_verifier(
    v: &mut Verifier<'_, '_>,
    pos: usize
) -> Result<(), InvalidFlatbuffer>

Runs the verifier for this type, assuming its at position pos in the verifier’s buffer. Should not need to be called directly.

impl Copy for MessageHeader

impl Eq for MessageHeader

impl SimpleToVerifyInSlice for MessageHeader

impl StructuralEq for MessageHeader

impl StructuralPartialEq for MessageHeader