Enum LockMode 

pub enum LockMode {
    AccessShare,
    RowShare,
    RowExclusive,
    ShareUpdateExclusive,
    Share,
    ShareRowExclusive,
    Exclusive,
    AccessExclusive,
}

Variants

AccessShare

RowShare

RowExclusive

ShareUpdateExclusive

Share

ShareRowExclusive

Exclusive

AccessExclusive

Implementations

impl LockMode

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

pub fn blocks_reads(&self) -> bool

Does this lock block ordinary reads (SELECT)?

pub fn blocks_writes(&self) -> bool

Does this lock block ordinary writes (INSERT / UPDATE / DELETE)?

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

Human-readable impact string.

Trait Implementations

impl Clone for LockMode

fn clone(&self) -> LockMode

Returns a duplicate 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<'de> Deserialize<'de> for LockMode

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

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 Serialize for LockMode

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for LockMode

impl Eq for LockMode

impl StructuralPartialEq for LockMode