jmt::storage

Struct NodeBatch

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pub struct NodeBatch { /* private fields */ }
Expand description

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

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impl NodeBatch

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

Creates a new node batch

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pub fn clear(&mut self)

Reset a NodeBatch to its empty state.

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

Get a node by key.

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

Returns a reference to the current set of nodes.

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

Insert a node into the batch.

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

Insert a node into the batch.

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

Returns a reference to the current set of nodes.

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

Extend a node batch.

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

Merge two NodeBatches into a single one.

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pub fn is_empty(&self) -> bool

Check if the node batch contains any items.

Trait Implementations§

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impl BorshDeserialize for NodeBatch

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

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

Deserialize this instance from a slice of bytes.
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fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>
where R: Read,

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impl BorshSerialize for NodeBatch

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

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impl Clone for NodeBatch

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fn clone(&self) -> NodeBatch

Returns a copy 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 NodeBatch

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

Formats the value using the given formatter. Read more
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impl Default for NodeBatch

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fn default() -> NodeBatch

Returns the “default value” for a type. Read more
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impl PartialEq for NodeBatch

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for NodeBatch

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impl StructuralPartialEq for NodeBatch

Auto Trait 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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> 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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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more