StatementCache

Struct StatementCache 

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pub struct StatementCache<S> { /* private fields */ }
Expand description

Generic statement cache that works with any statement type.

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impl<S: Clone> StatementCache<S>

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pub fn new(mode: CacheMode) -> Self

Create a new statement cache.

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pub fn global(max_statements: usize) -> Self

Create a global cache with the given max size.

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pub fn per_tenant(max_tenants: usize, statements_per_tenant: usize) -> Self

Create a per-tenant cache.

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pub fn mode(&self) -> &CacheMode

Get the cache mode.

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pub fn stats(&self) -> CacheStats

Get cache statistics.

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pub fn get(&self, key: &StatementKey) -> Option<S>

Get a cached statement (global mode).

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pub fn get_for_tenant( &self, tenant_id: &TenantId, key: &StatementKey, ) -> Option<S>

Get a cached statement for a tenant.

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pub fn insert(&self, key: StatementKey, statement: S)

Insert a statement into the global cache.

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pub fn insert_for_tenant( &self, tenant_id: &TenantId, key: StatementKey, statement: S, )

Insert a statement for a specific tenant.

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pub fn record_execution(&self, key: &StatementKey, duration_us: f64)

Record an execution for statistics.

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pub fn record_tenant_execution( &self, tenant_id: &TenantId, key: &StatementKey, duration_us: f64, )

Record an execution for a tenant.

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pub fn invalidate_tenant(&self, tenant_id: &TenantId)

Invalidate all statements for a tenant.

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pub fn invalidate(&self, key: &StatementKey)

Invalidate a specific statement globally.

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pub fn clear(&self)

Clear all cached statements.

Auto Trait Implementations§

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impl<S> !Freeze for StatementCache<S>

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impl<S> !RefUnwindSafe for StatementCache<S>

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impl<S> Send for StatementCache<S>
where S: Send,

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impl<S> Sync for StatementCache<S>
where S: Send + Sync,

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

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impl<S> UnwindSafe for StatementCache<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> 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>

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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).

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

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type Error = Infallible

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

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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

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

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