Enum arrow_flight::sql::SqlNullOrdering

#[repr(i32)]
pub enum SqlNullOrdering {
    SqlNullsSortedHigh,
    SqlNullsSortedLow,
    SqlNullsSortedAtStart,
    SqlNullsSortedAtEnd,
}

Variants

SqlNullsSortedHigh

SqlNullsSortedLow

SqlNullsSortedAtStart

SqlNullsSortedAtEnd

Implementations

impl SqlNullOrdering

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of SqlNullOrdering.

pub fn from_i32(value: i32) -> Option<SqlNullOrdering>

Converts an i32 to a SqlNullOrdering, or None if value is not a valid variant.

impl SqlNullOrdering

pub fn as_str_name(&self) -> &'static str

String value of the enum field names used in the ProtoBuf definition.

The values are not transformed in any way and thus are considered stable (if the ProtoBuf definition does not change) and safe for programmatic use.

pub fn from_str_name(value: &str) -> Option<Self>

Creates an enum from field names used in the ProtoBuf definition.

Trait Implementations

impl Clone for SqlNullOrdering

fn clone(&self) -> SqlNullOrdering

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SqlNullOrdering

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

Formats the value using the given formatter.

impl Default for SqlNullOrdering

fn default() -> SqlNullOrdering

Returns the “default value” for a type.

impl From<SqlNullOrdering> for i32

fn from(value: SqlNullOrdering) -> i32

Converts to this type from the input type.

impl Hash for SqlNullOrdering

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 SqlNullOrdering

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<SqlNullOrdering> for SqlNullOrdering

fn eq(&self, other: &SqlNullOrdering) -> 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<SqlNullOrdering> for SqlNullOrdering

fn partial_cmp(&self, other: &SqlNullOrdering) -> 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 Copy for SqlNullOrdering

impl Eq for SqlNullOrdering

impl StructuralEq for SqlNullOrdering

impl StructuralPartialEq for SqlNullOrdering