Struct GraphDiff 

pub struct GraphDiff {
    pub version: u64,
    pub timestamp: i64,
    pub op: DiffOp,
    pub ref_val: String,
    pub old: Option<HDict>,
    pub new: Option<HDict>,
    pub changed_tags: Option<HDict>,
    pub previous_tags: Option<HDict>,
}

A single mutation record.

Note: Each GraphDiff stores full entity clones (old and/or new). With the default changelog capacity (50,000 entries), this can use significant memory for entities with many tags or large string values.

Fields

version: u64

The graph version after this mutation.

timestamp: i64

Wall-clock timestamp as Unix nanoseconds (0 if unavailable).

op: DiffOp

The kind of mutation.

ref_val: String

The entity’s ref value.

old: Option<HDict>

The entity state before the mutation (Some for Remove; None for Add/Update).

new: Option<HDict>

The entity state after the mutation (Some for Add; None for Remove/Update).

changed_tags: Option<HDict>

For Update: only the tags that changed, with their new values.

previous_tags: Option<HDict>

For Update: only the tags that changed, with their previous values.

Trait Implementations

impl Clone for GraphDiff

fn clone(&self) -> GraphDiff

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GraphDiff

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

Formats the value using the given formatter.