Struct SledTreeOverlayState 

pub struct SledTreeOverlayState {
    pub cache: BTreeMap<IVec, IVec>,
    pub removed: BTreeSet<IVec>,
}

Struct representing SledTreeOverlay cache state.

Fields

cache: BTreeMap<IVec, IVec>

The cache is the actual overlayed data represented as a BTreeMap.

removed: BTreeSet<IVec>

In removed, we keep track of keys that were removed in the overlay.

Implementations

impl SledTreeOverlayState

pub fn new() -> Self

Instantiate a new SledTreeOverlayState.

pub fn aggregate(&self) -> Option<Batch>

Aggregate all the current tree overlay state changes into a sled::Batch ready for further operation. If there are no changes, return None.

pub fn add_diff(&mut self, diff: &SledTreeOverlayStateDiff)

Add provided tree overlay state changes to our own.

pub fn remove_diff(&mut self, diff: &SledTreeOverlayStateDiff)

Remove provided tree overlay state changes from our own.

Trait Implementations

impl Clone for SledTreeOverlayState

fn clone(&self) -> SledTreeOverlayState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SledTreeOverlayState

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

Formats the value using the given formatter.

impl Default for SledTreeOverlayState

fn default() -> SledTreeOverlayState

Returns the “default value” for a type.

impl From<&SledTreeOverlayStateDiff> for SledTreeOverlayState

fn from(diff: &SledTreeOverlayStateDiff) -> Self

Converts to this type from the input type.

impl PartialEq for SledTreeOverlayState

fn eq(&self, other: &SledTreeOverlayState) -> 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 StructuralPartialEq for SledTreeOverlayState