Struct parquet_format_safe::DataPageHeader

pub struct DataPageHeader {
    pub num_values: i32,
    pub encoding: Encoding,
    pub definition_level_encoding: Encoding,
    pub repetition_level_encoding: Encoding,
    pub statistics: Option<Statistics>,
}

Data page header

Fields

num_values: i32

Number of values, including NULLs, in this data page. *

encoding: Encoding

Encoding used for this data page *

definition_level_encoding: Encoding

Encoding used for definition levels *

repetition_level_encoding: Encoding

Encoding used for repetition levels *

statistics: Option<Statistics>

Optional statistics for the data in this page*

Implementations

impl DataPageHeader

pub fn new<F5>( num_values: i32, encoding: Encoding, definition_level_encoding: Encoding, repetition_level_encoding: Encoding, statistics: F5 ) -> DataPageHeader

where F5: Into<Option<Statistics>>,

pub fn read_from_in_protocol<T: TInputProtocol>( i_prot: &mut T ) -> Result<DataPageHeader>

pub async fn stream_from_in_protocol<T: TInputStreamProtocol>( i_prot: &mut T ) -> Result<DataPageHeader>

pub fn write_to_out_protocol<T: TOutputProtocol>( &self, o_prot: &mut T ) -> Result<usize>

pub async fn write_to_out_stream_protocol<T: TOutputStreamProtocol>( &self, o_prot: &mut T ) -> Result<usize>

Trait Implementations

impl AsyncReadThrift for DataPageHeader

fn stream_from_in_protocol<'life0, 'async_trait, T>( i_prot: &'life0 mut T ) -> Pin<Box<dyn Future<Output = Result<DataPageHeader>> + Send + 'async_trait>>

where T: 'async_trait + TInputStreamProtocol, 'life0: 'async_trait,

impl Clone for DataPageHeader

fn clone(&self) -> DataPageHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DataPageHeader

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

Formats the value using the given formatter.

impl Hash for DataPageHeader

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 DataPageHeader

fn cmp(&self, other: &DataPageHeader) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for DataPageHeader

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

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

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

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

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

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

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

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

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

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 ReadThrift for DataPageHeader

fn read_from_in_protocol<T: TInputProtocol>( i_prot: &mut T ) -> Result<DataPageHeader>

impl Eq for DataPageHeader

impl StructuralPartialEq for DataPageHeader