Struct PropertyDiff 

pub struct PropertyDiff {
    pub set: SmallVec<[(DbString, Value); 4]>,
    pub removed: SmallVec<[DbString; 2]>,
}

Property map difference.

Fields

set: SmallVec<[(DbString, Value); 4]>

Keys set to a new value. Use Value::Null for an explicit null set.

removed: SmallVec<[DbString; 2]>

Keys whose entries are removed entirely.

Implementations

impl PropertyDiff

pub fn new( set: impl IntoIterator<Item = (DbString, Value)>, removed: impl IntoIterator<Item = DbString>, ) -> CoreResult<Self>

Construct a sorted, deduplicated property diff.

Errors

Returns CoreError::OverlappingDiff when a key appears in both set and removed. Contradictory diffs would make WAL replay order-dependent, so the constructor refuses to build them.

pub fn is_empty(&self) -> bool

Return true if no properties changed.

Trait Implementations

impl Clone for PropertyDiff

fn clone(&self) -> PropertyDiff

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PropertyDiff

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PropertyDiff

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for PropertyDiff

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

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for PropertyDiff