Struct GrowingStore 

pub struct GrowingStore<S> { /* private fields */ }

👎Deprecating in a future version: GrowingStore does not implement deletion. Use InMemoryStore which implements deletion of AVL tree nodes.

GrowingStore does not prune any path. If the path is set to v, the stored value is v If the path is deleted, the stored value is [] Note: we should not allow empty vec to store as this would conflict with the deletion representation.

Implementations

impl<S> GrowingStore<S>

pub fn new(store: S) -> Self

impl<S> GrowingStore<S>

where S: Store,

pub fn is_deleted(&self, path: &Path) -> bool

pub fn deleted_keys(&self, key_prefix: &Path) -> Vec<Path>

Trait Implementations

impl<S: Clone> Clone for GrowingStore<S>

fn clone(&self) -> GrowingStore<S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S: Debug> Debug for GrowingStore<S>

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

Formats the value using the given formatter.

impl<S> Default for GrowingStore<S>

where S: Default,

fn default() -> Self

Returns the “default value” for a type.

impl<S> ProvableStore for GrowingStore<S>

where S: ProvableStore,

fn root_hash(&self) -> Vec<u8>

Return a vector commitment

fn get_proof(&self, height: Height, key: &Path) -> Option<CommitmentProof>

Return proof of existence for key

impl<S> Store for GrowingStore<S>

where S: Store,

type Error = <S as Store>::Error

Error type - expected to envelope all possible errors in store

fn set( &mut self, path: Path, value: Vec<u8>, ) -> Result<Option<Vec<u8>>, Self::Error>

Set value for path

fn get(&self, height: Height, path: &Path) -> Option<Vec<u8>>

Get associated value for path at specified height

fn delete(&mut self, path: &Path)

Delete specified path

fn commit(&mut self) -> Result<Vec<u8>, Self::Error>

Commit Pending block to canonical chain and create new Pending

fn apply(&mut self) -> Result<(), Self::Error>

Apply accumulated changes to Pending

fn reset(&mut self)

Reset accumulated changes

fn prune(&mut self, height: u64) -> Result<u64, Self::Error>

Prune historic blocks upto specified height

fn current_height(&self) -> u64

Return the current height of the chain

fn get_keys(&self, key_prefix: &Path) -> Vec<Path>

Return all keys that start with specified prefix