Struct jj_lib::op_store::Operation

pub struct Operation {
    pub view_id: ViewId,
    pub parents: Vec<OperationId>,
    pub metadata: OperationMetadata,
}

Represents an operation (transaction) on the repo view, just like how a Commit object represents an operation on the tree.

Operations and views are not meant to be exchanged between repos or users; they represent local state and history.

The operation history will almost always be linear. It will only have forks when parallel operations occurred. The parent is determined when the transaction starts. When the transaction commits, a lock will be taken and it will be checked that the current head of the operation graph is unchanged. If the current head has changed, there has been concurrent operation.

Fields

view_id: ViewId

parents: Vec<OperationId>

metadata: OperationMetadata

Implementations

impl Operation

pub fn make_root(empty_view_id: ViewId) -> Operation

Trait Implementations

impl Clone for Operation

fn clone(&self) -> Operation

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ContentHash for Operation

fn hash(&self, state: &mut impl Update)

Update the hasher state with this object’s content

impl Debug for Operation

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

Formats the value using the given formatter.

impl PartialEq for Operation

fn eq(&self, other: &Operation) -> 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 Eq for Operation

impl StructuralPartialEq for Operation