Enum LockMode

#[repr(i32)]
pub enum LockMode {
    NoLock = 0,
    AccessShareLock = 1,
    RowShareLock = 2,
    RowExclusiveLock = 3,
    ShareUpdateExclusiveLock = 4,
    ShareLock = 5,
    ShareRowExclusiveLock = 6,
    ExclusiveLock = 7,
    AccessExclusiveLock = 8,
}

Variants

NoLock = 0

AccessShareLock = 1

RowShareLock = 2

RowExclusiveLock = 3

ShareUpdateExclusiveLock = 4

ShareLock = 5

ShareRowExclusiveLock = 6

ExclusiveLock = 7

AccessExclusiveLock = 8

Implementations

impl LockMode

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of LockMode.

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

👎Deprecated: Use the TryFrom<i32> implementation instead

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

Trait Implementations

impl Clone for LockMode

fn clone(&self) -> LockMode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LockMode

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

Formats the value using the given formatter.

impl Default for LockMode

fn default() -> LockMode

Returns the “default value” for a type.

impl From<LockMode> for i32

fn from(value: LockMode) -> i32

Converts to this type from the input type.

impl Hash for LockMode

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 LockMode

fn cmp(&self, other: &LockMode) -> 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 LockMode

fn eq(&self, other: &LockMode) -> 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 LockMode

fn partial_cmp(&self, other: &LockMode) -> 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 TryFrom<i32> for LockMode

type Error = UnknownEnumValue

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<LockMode, UnknownEnumValue>

Performs the conversion.

impl Copy for LockMode

impl Eq for LockMode

impl StructuralPartialEq for LockMode