Struct jmt::storage::NodeBatch

pub struct NodeBatch { /* private fields */ }

Node batch that will be written into db atomically with other batches.

Implementations

impl NodeBatch

pub fn new( nodes: BTreeMap<NodeKey, Node>, values: BTreeMap<(Version, KeyHash), Option<OwnedValue>> ) -> Self

Creates a new node batch

pub fn clear(&mut self)

Reset a NodeBatch to its empty state.

pub fn get_node(&self, node_key: &NodeKey) -> Option<&Node>

Get a node by key.

pub fn nodes(&self) -> &BTreeMap<NodeKey, Node>

Returns a reference to the current set of nodes.

pub fn insert_node(&mut self, node_key: NodeKey, node: Node) -> Option<Node>

Insert a node into the batch.

pub fn insert_value( &mut self, version: Version, key_hash: KeyHash, value: OwnedValue )

Insert a node into the batch.

pub fn values(&self) -> &BTreeMap<(Version, KeyHash), Option<Vec<u8>>>

Returns a reference to the current set of nodes.

pub fn extend( &mut self, nodes: impl IntoIterator<Item = (NodeKey, Node)>, values: impl IntoIterator<Item = ((Version, KeyHash), Option<OwnedValue>)> )

Extend a node batch.

pub fn merge(&mut self, rhs: Self)

Merge two NodeBatches into a single one.

pub fn is_empty(&self) -> bool

Check if the node batch contains any items.

Trait Implementations

impl BorshDeserialize for NodeBatch

fn deserialize_reader<R: Read>(reader: &mut R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for NodeBatch

fn serialize<W: Write>(&self, writer: &mut W) -> Result<(), Error>

impl Clone for NodeBatch

fn clone(&self) -> NodeBatch

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NodeBatch

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

Formats the value using the given formatter.

impl Default for NodeBatch

fn default() -> NodeBatch

Returns the “default value” for a type.

impl PartialEq for NodeBatch

fn eq(&self, other: &NodeBatch) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for NodeBatch

impl StructuralPartialEq for NodeBatch