Enum FullDocumentBeforeChange 

pub enum FullDocumentBeforeChange {
    Off,
    WhenAvailable,
    Required,
}

Full document before change return policy.

Variants

Off

Don’t return document before change.

WhenAvailable

Return document before change if available.

Required

Require document before change.

Implementations

impl FullDocumentBeforeChange

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

Get the MongoDB option string.

Trait Implementations

impl Clone for FullDocumentBeforeChange

fn clone(&self) -> FullDocumentBeforeChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FullDocumentBeforeChange

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

Formats the value using the given formatter.

impl Default for FullDocumentBeforeChange

fn default() -> FullDocumentBeforeChange

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FullDocumentBeforeChange

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for FullDocumentBeforeChange

fn eq(&self, other: &FullDocumentBeforeChange) -> 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 Serialize for FullDocumentBeforeChange

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 FullDocumentBeforeChange

impl Eq for FullDocumentBeforeChange

impl StructuralPartialEq for FullDocumentBeforeChange