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CompressedKvStore

Struct CompressedKvStore 

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pub struct CompressedKvStore<S: KvStore> { /* private fields */ }
Expand description

Compressed KV store wrapper

Wraps any KvStore implementation and transparently compresses/decompresses values.

§Example

use trueno_db::kv::{CompressedKvStore, Compression, MemoryKvStore, KvStore};

let inner = MemoryKvStore::new();
let store = CompressedKvStore::new(inner, Compression::Lz4);

// Values are transparently compressed
store.set("key", vec![0u8; 10000]).await?;
let value = store.get("key").await?;

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impl<S: KvStore> CompressedKvStore<S>

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pub const fn new(inner: S, compression: Compression) -> Self

Create a new compressed KV store wrapping the given store

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pub const fn inner(&self) -> &S

Get reference to inner store (for inspection/testing)

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pub const fn compression(&self) -> Compression

Get compression algorithm

Trait Implementations§

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impl<S: Debug + KvStore> Debug for CompressedKvStore<S>

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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<S: KvStore> KvStore for CompressedKvStore<S>

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async fn get(&self, key: &str) -> Result<Option<Vec<u8>>>

Get a value by key. Read more
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async fn set(&self, key: &str, value: Vec<u8>) -> Result<()>

Set a value for a key. Read more
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async fn delete(&self, key: &str) -> Result<()>

Delete a key. Read more
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async fn exists(&self, key: &str) -> Result<bool>

Check if a key exists.
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fn batch_get( &self, keys: &[&str], ) -> impl Future<Output = Result<Vec<Option<Vec<u8>>>>> + Send

Get multiple keys in a batch (SIMD-optimized). Read more
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fn batch_set( &self, pairs: Vec<(&str, Vec<u8>)>, ) -> impl Future<Output = Result<()>> + Send

Set multiple key-value pairs in a batch (SIMD-optimized).

Auto Trait Implementations§

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impl<S> Freeze for CompressedKvStore<S>
where S: Freeze,

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impl<S> RefUnwindSafe for CompressedKvStore<S>
where S: RefUnwindSafe,

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impl<S> Send for CompressedKvStore<S>

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impl<S> Sync for CompressedKvStore<S>

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impl<S> Unpin for CompressedKvStore<S>
where S: Unpin,

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impl<S> UnsafeUnpin for CompressedKvStore<S>
where S: UnsafeUnpin,

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impl<S> UnwindSafe for CompressedKvStore<S>
where S: UnwindSafe,

Blanket 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> Downcast<T> for T

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fn downcast(&self) -> &T

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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, 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, 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> Upcast<T> for T

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fn upcast(&self) -> Option<&T>

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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impl<T> WasmNotSend for T
where T: Send,

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impl<T> WasmNotSendSync for T

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impl<T> WasmNotSync for T
where T: Sync,