Enum PropertyUndoEntry

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pub enum PropertyUndoEntry {
    NodeProperty {
        node_id: NodeId,
        key: PropertyKey,
        old_value: Option<Value>,
    },
    EdgeProperty {
        edge_id: EdgeId,
        key: PropertyKey,
        old_value: Option<Value>,
    },
    LabelAdded {
        node_id: NodeId,
        label: String,
    },
    LabelRemoved {
        node_id: NodeId,
        label: String,
    },
    NodeDeleted {
        node_id: NodeId,
        labels: Vec<String>,
        properties: Vec<(PropertyKey, Value)>,
    },
    EdgeDeleted {
        edge_id: EdgeId,
        src: NodeId,
        dst: NodeId,
        edge_type: String,
        properties: Vec<(PropertyKey, Value)>,
    },
}

Expand description

Undo entry for a property mutation within a transaction.

Captures the previous state of a property so it can be restored on rollback.

Variants§

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NodeProperty

A node property was changed or added.

Fields

§node_id: NodeId

The node that was modified.

§key: PropertyKey

The property key that was set or removed.

§old_value: Option<Value>

The previous value, or None if the property did not exist before.

§

EdgeProperty

An edge property was changed or added.

Fields

§edge_id: EdgeId

The edge that was modified.

§key: PropertyKey

The property key that was set or removed.

§old_value: Option<Value>

The previous value, or None if the property did not exist before.

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LabelAdded

A label was added to a node.

Fields

§node_id: NodeId

The node that had a label added.

§label: String

The label string that was added.

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LabelRemoved

A label was removed from a node.

Fields

§node_id: NodeId

The node that had a label removed.

§label: String

The label string that was removed.

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NodeDeleted

A node was deleted (for rollback restoration).

Fields

§node_id: NodeId

The node that was deleted.

§labels: Vec<String>

The labels the node had before deletion.

§properties: Vec<(PropertyKey, Value)>

The properties the node had before deletion.

§

EdgeDeleted

An edge was deleted (for rollback restoration).

Fields

§edge_id: EdgeId

The edge that was deleted.

§src: NodeId

The source node.

§dst: NodeId

The destination node.

§edge_type: String

The edge type name.

§properties: Vec<(PropertyKey, Value)>

The properties the edge had before deletion.

Trait Implementations§

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impl Clone for PropertyUndoEntry

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fn clone(&self) -> PropertyUndoEntry

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for PropertyUndoEntry

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for PropertyUndoEntry

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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