Enum MessageHeader

pub enum MessageHeader {
    Schema(Box<Schema>),
    DictionaryBatch(Box<DictionaryBatch>),
    RecordBatch(Box<RecordBatch>),
    Tensor(Box<Tensor>),
    SparseTensor(Box<SparseTensor>),
}

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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

Generated from these locations:

• Union MessageHeader in the file Message.fbs:146

Variants

Schema(Box<Schema>)

The variant of type Schema in the union MessageHeader

DictionaryBatch(Box<DictionaryBatch>)

The variant of type DictionaryBatch in the union MessageHeader

RecordBatch(Box<RecordBatch>)

The variant of type RecordBatch in the union MessageHeader

Tensor(Box<Tensor>)

The variant of type Tensor in the union MessageHeader

SparseTensor(Box<SparseTensor>)

The variant of type SparseTensor in the union MessageHeader

Implementations

impl MessageHeader

pub fn builder() -> MessageHeaderBuilder<Uninitialized>

Creates a MessageHeaderBuilder for serializing an instance of this table.

pub fn create_schema( builder: &mut Builder, value: impl WriteAsOffset<Schema>, ) -> UnionOffset<Self>

pub fn create_dictionary_batch( builder: &mut Builder, value: impl WriteAsOffset<DictionaryBatch>, ) -> UnionOffset<Self>

pub fn create_record_batch( builder: &mut Builder, value: impl WriteAsOffset<RecordBatch>, ) -> UnionOffset<Self>

pub fn create_tensor( builder: &mut Builder, value: impl WriteAsOffset<Tensor>, ) -> UnionOffset<Self>

pub fn create_sparse_tensor( builder: &mut Builder, value: impl WriteAsOffset<SparseTensor>, ) -> UnionOffset<Self>

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<'de> Deserialize<'de> for MessageHeader

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

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, Self: Sized,

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.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for MessageHeader

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

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for MessageHeader

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> TryFrom<MessageHeaderRef<'a>> for MessageHeader

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: MessageHeaderRef<'a>) -> Result<Self>

Performs the conversion.

impl Eq for MessageHeader

impl StructuralPartialEq for MessageHeader

impl WriteAsOptionalUnion<MessageHeader> for MessageHeader

impl WriteAsUnion<MessageHeader> for MessageHeader