pub struct TimestampGen(/* private fields */);
Expand description

Generators of client-side, microsecond-precision timestamps. Note: This generator is thread-safe and can be shared by multiple sessions.

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impl TimestampGen

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pub fn time_from_epoch(epoch_seconds: Duration) -> Time

Converts a unix timestamp (in seconds) to the Cassandra “time” type. The “time” type represents the number of nanoseconds since midnight (range 0 to 86399999999999).

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pub fn gen_monotonic_new() -> Self

Creates a new monotonically increasing timestamp generator. This generates microsecond timestamps with the sub-millisecond part generated using a counter. The implementation guarantees that no more than 1000 timestamps will be generated for a given clock tick even if shared by multiple session objects. If that rate is exceeded then a warning is logged and timestamps stop incrementing until the next clock tick.

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pub fn gen_server_side_new() -> Self

Creates a new server-side timestamp generator. This generator allows Cassandra to assign timestamps server-side.

Note: This is the default timestamp generator.

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impl Debug for TimestampGen

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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 Drop for TimestampGen

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl Send for TimestampGen

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impl Sync for TimestampGen

Auto Trait Implementations§

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, 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> SendSyncUnwindSafe for T
where T: Send + Sync + UnwindSafe + ?Sized,