Enum journaldb::Algorithm

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pub enum Algorithm {
    Archive,
    EarlyMerge,
    OverlayRecent,
    RefCounted,
}

Expand description

Journal database operating strategy.

Variants

`Archive`

Keep all keys forever.

`EarlyMerge`

Ancient and recent history maintained separately; recent history lasts for particular number of blocks.

Inserts go into backing database, journal retains knowledge of whether backing DB key is ancient or recent. Non-canon inserts get explicitly reverted and removed from backing DB.

`OverlayRecent`

Ancient and recent history maintained separately; recent history lasts for particular number of blocks.

Inserts go into memory overlay, which is tried for key fetches. Memory overlay gets flushed in backing only at end of recent history.

`RefCounted`

Ancient and recent history maintained separately; recent history lasts for particular number of blocks.

References are counted in disk-backed DB.

Implementations

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impl Algorithm

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pub fn as_str(&self) -> &'static str

Returns static str describing journal database algorithm.

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pub fn as_internal_name_str(&self) -> &'static str

Returns static str describing journal database algorithm.

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pub fn is_stable(&self) -> bool

Returns true if pruning strategy is stable

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pub fn all_types() -> Vec<Algorithm>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A> where A: Allocator,`

Returns all algorithm types.

Trait Implementations

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impl Clone for Algorithm

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fn clone(&self) -> Algorithm

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl Debug for Algorithm

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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 Display for Algorithm

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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 FromStr for Algorithm

type Err = String

The associated error which can be returned from parsing.

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fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type. Read more

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impl PartialEq<Algorithm> for Algorithm

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

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

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

This method tests for !=.

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impl Copy for Algorithm

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impl StructuralPartialEq for Algorithm

Auto Trait Implementations

impl RefUnwindSafe for Algorithm

impl Send for Algorithm

impl Sync for Algorithm

impl Unpin for Algorithm

impl UnwindSafe for Algorithm

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub 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,

const: unstable · source

pub 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,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub 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> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T> ToString for T where
T: Display + ?Sized,

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pub default fn to_string(&self) -> String

Converts the given value to a String. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<V, T> VZip<V> for T where
V: MultiLane<T>,

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pub fn vzip(self) -> V

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Enum journaldb::Algorithm

Variants

Archive

EarlyMerge

OverlayRecent

RefCounted

Implementations

impl Algorithm

pub fn as_str(&self) -> &'static str

pub fn as_internal_name_str(&self) -> &'static str

pub fn is_stable(&self) -> bool

pub fn all_types() -> Vec<Algorithm>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator,

Trait Implementations

impl Clone for Algorithm

fn clone(&self) -> Algorithm

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

impl Debug for Algorithm

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

impl Display for Algorithm

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

impl FromStr for Algorithm

type Err = String

fn from_str(s: &str) -> Result<Self, Self::Err>

impl PartialEq<Algorithm> for Algorithm

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

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

impl Copy for Algorithm

impl StructuralPartialEq for Algorithm

Auto Trait Implementations

impl RefUnwindSafe for Algorithm

impl Send for Algorithm

impl Sync for Algorithm

impl Unpin for Algorithm

impl UnwindSafe for Algorithm

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T> ToString for T where T: Display + ?Sized,

pub default fn to_string(&self) -> String

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

pub fn vzip(self) -> V

impl<T> DebugIfStd for T where T: Debug,

impl<T> Erased for T

`Archive`

`EarlyMerge`

`OverlayRecent`

`RefCounted`

pub fn all_types() -> Vec<Algorithm>ⓘNotable traits for Vec<u8, A>`impl<A> Write for Vec<u8, A> where A: Allocator,`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T> ToString for T where
T: Display + ?Sized,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

impl<T> DebugIfStd for T where
T: Debug,