Struct parquet2::page::DataPageHeaderV1

pub struct DataPageHeaderV1 {
    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(
    i_prot: &mut dyn TInputProtocol
) -> Result<DataPageHeader, Error>

pub async fn stream_from_in_protocol(
    i_prot: &'_ mut (dyn TInputStreamProtocol + '_)
) -> Result<DataPageHeader, Error>

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

pub async fn write_to_out_stream_protocol(
    &'_ self,
    o_prot: &'_ mut (dyn TOutputStreamProtocol + '_)
) -> Result<usize, Error>

Trait Implementations

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 DataPageHeaderExt for DataPageHeader

fn encoding(&self) -> Encoding

fn repetition_level_encoding(&self) -> Encoding

fn definition_level_encoding(&self) -> Encoding

impl Debug for DataPageHeader

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

Formats the value using the given formatter.

impl Hash for DataPageHeader

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

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 DataPageHeader

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<DataPageHeader> 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: &DataPageHeader) -> bool

This method tests for !=.

impl PartialOrd<DataPageHeader> 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 Eq for DataPageHeader

impl StructuralEq for DataPageHeader

impl StructuralPartialEq for DataPageHeader