Struct EntitySnapshot 

pub struct EntitySnapshot { /* private fields */ }

An immutable snapshot of an entity’s scalar property values.

Constructed by IEntitySnapshot::snapshot() and IGetKeyValues::key_values(). Field lookups via get are O(n) linear scans — for the typical 5–10 field entity this is faster than HashMap allocation + hashing.

Implementations

impl EntitySnapshot

pub fn new(entries: Vec<(&'static str, DbValue)>) -> Self

Creates a snapshot from a vector of (field_name, value) pairs.

pub fn empty() -> Self

Creates an empty snapshot (used for Added entities with no original).

pub fn get(&self, field: &str) -> Option<&DbValue>

Looks up a value by field name. O(n) linear scan.

pub fn iter(&self) -> impl Iterator<Item = (&'static str, &DbValue)>

Iterates over all (field_name, value) pairs.

pub fn len(&self) -> usize

Returns the number of properties in the snapshot.

pub fn is_empty(&self) -> bool

Returns true if the snapshot contains no properties.

Trait Implementations

impl Clone for EntitySnapshot

fn clone(&self) -> EntitySnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EntitySnapshot

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

Formats the value using the given formatter.

impl Default for EntitySnapshot

fn default() -> Self

Returns the “default value” for a type.

impl From<Vec<(&'static str, DbValue)>> for EntitySnapshot

fn from(entries: Vec<(&'static str, DbValue)>) -> Self

Converts to this type from the input type.

impl PartialEq for EntitySnapshot

fn eq(&self, other: &Self) -> bool

Order-independent comparison: same length + every pair finds a match.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.