Enum Operation 

pub enum Operation {
    CreateNode {
        node: Node,
    },
    CreateEdge {
        edge: Edge,
    },
    SetProperty {
        target: PropertyTarget,
        key: String,
        value: Value,
    },
    RemoveProperty {
        target: PropertyTarget,
        key: String,
    },
    AddLabel {
        node_id: NodeId,
        label: String,
    },
    RemoveLabel {
        node_id: NodeId,
        label: String,
    },
    DeleteNode {
        node_id: NodeId,
    },
    DeleteNodeDetach {
        node_id: NodeId,
    },
    DeleteEdge {
        edge_id: EdgeId,
    },
    CreateIndex {
        label: String,
        property: String,
    },
    DropIndex {
        label: String,
        property: String,
    },
}

A single, serializable graph mutation.

Operations are stored in WAL frames and replayed on recovery, and also buffered in Vec<Operation> for explicit-transaction staging. All variants must be serializable via bincode.

Variants

CreateNode

Insert a new node (idempotent — ignored if the ID already exists).

Fields

node: Node

CreateEdge

Insert a new edge (idempotent — ignored if the ID already exists).

Fields

edge: Edge

SetProperty

Set or overwrite a property on a node or edge.

Fields

target: PropertyTarget

key: String

value: Value

RemoveProperty

Remove a property key from a node or edge.

Fields

target: PropertyTarget

key: String

AddLabel

Add a label to a node (no-op if the label is already present).

Fields

node_id: NodeId

label: String

RemoveLabel

Remove a label from a node.

Fields

node_id: NodeId

label: String

DeleteNode

Delete a node (fails if it still has incident edges).

Fields

node_id: NodeId

DeleteNodeDetach

Delete a node and all its incident edges (DETACH DELETE semantics).

Fields

node_id: NodeId

DeleteEdge

Delete an edge by ID.

Fields

edge_id: EdgeId

CreateIndex

Declare a property index on (label, property).

Fields

label: String

property: String

DropIndex

Remove a property index for (label, property).

Fields

label: String

property: String

Trait Implementations

impl Clone for Operation

fn clone(&self) -> Operation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Operation

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Operation

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Operation

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

where __S: Serializer,

Serialize this value into the given Serde serializer.