pub struct MzOffset {
    pub offset: u64,
}
Expand description

Universal language for describing message positions in Materialize, in a source independent way. Individual sources like Kafka or File sources should explicitly implement their own offset type that converts to/From MzOffsets. A 0-MzOffset denotes an empty stream.

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§offset: u64

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impl MzOffset

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pub fn checked_sub(self, other: Self) -> Option<Self>

Trait Implementations§

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impl Add<MzOffset> for MzOffset

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type Output = MzOffset

The resulting type after applying the + operator.
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fn add(self, x: Self) -> Self

Performs the + operation. Read more
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impl Add<u64> for MzOffset

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type Output = MzOffset

The resulting type after applying the + operator.
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fn add(self, x: u64) -> MzOffset

Performs the + operation. Read more
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impl AddAssign<MzOffset> for MzOffset

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fn add_assign(&mut self, x: Self)

Performs the += operation. Read more
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impl AddAssign<u64> for MzOffset

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fn add_assign(&mut self, x: u64)

Performs the += operation. Read more
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impl Arbitrary for MzOffset

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type Parameters = <u64 as Arbitrary>::Parameters

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.
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type Strategy = Map<<u64 as Arbitrary>::Strategy, fn(_: u64) -> MzOffset>

The type of Strategy used to generate values of type Self.
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fn arbitrary_with(_top: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args. Read more
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fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). Read more
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impl Clone for MzOffset

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fn clone(&self) -> MzOffset

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 Codec64 for MzOffset

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fn codec_name() -> String

Name of the codec. Read more
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fn encode(&self) -> [u8; 8]

Encode a timestamp or diff for permanent storage. Read more
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fn decode(buf: [u8; 8]) -> Self

Decode a timestamp or diff previous encoded with this codec’s Codec64::encode. Read more
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impl Debug for MzOffset

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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 MzOffset

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fn default() -> MzOffset

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for MzOffset

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Display for MzOffset

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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 From<PgLsn> for MzOffset

Convert from PgLsn to MzOffset

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fn from(lsn: PgLsn) -> Self

Converts to this type from the input type.
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impl From<u64> for MzOffset

Convert from MzOffset to Kafka::Offset as long as the offset is not negative

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fn from(offset: u64) -> Self

Converts to this type from the input type.
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impl Hash for MzOffset

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for MzOffset

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fn cmp(&self, other: &MzOffset) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl PartialEq<MzOffset> for MzOffset

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd<MzOffset> for MzOffset

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fn partial_cmp(&self, other: &MzOffset) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl PartialOrder for MzOffset

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fn less_equal(&self, other: &Self) -> bool

Returns true iff one element is less than or equal to the other.
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fn less_than(&self, other: &Self) -> bool

Returns true iff one element is strictly less than the other.
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impl PathSummary<MzOffset> for MzOffset

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fn results_in(&self, src: &MzOffset) -> Option<MzOffset>

Advances a timestamp according to the timestamp actions on the path. Read more
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fn followed_by(&self, other: &Self) -> Option<Self>

Composes this path summary with another path summary. Read more
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impl Refines<()> for MzOffset

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fn to_inner(_: ()) -> Self

Converts the outer timestamp to an inner timestamp.
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fn to_outer(self)

Converts the inner timestamp to an outer timestamp.
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fn summarize(_: Self::Summary)

Summarizes an inner path summary as an outer path summary. Read more
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impl RustType<ProtoMzOffset> for MzOffset

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fn into_proto(&self) -> ProtoMzOffset

Convert a Self into a Proto value.
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fn from_proto(proto: ProtoMzOffset) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value. Read more
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impl Semigroup for MzOffset

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fn plus_equals(&mut self, rhs: &Self)

The method of std::ops::AddAssign, for types that do not implement AddAssign.
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fn is_zero(&self) -> bool

Returns true if the element is the additive identity. Read more
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impl Serialize for MzOffset

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl SourceTimestamp for MzOffset

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impl Timestamp for MzOffset

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type Summary = MzOffset

A type summarizing action on a timestamp along a dataflow path.
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fn minimum() -> Self

A minimum value suitable as a default.
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impl Copy for MzOffset

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impl Eq for MzOffset

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impl StructuralEq for MzOffset

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impl StructuralPartialEq for MzOffset

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impl TotalOrder for MzOffset

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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> AsOut<T> for Twhere T: Copy,

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fn as_out(&mut self) -> Out<'_, T>

Returns an out reference to self.
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impl<T> Borrow<T> for Twhere 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 Twhere 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<Q, K> Comparable<K> for Qwhere Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<T> DynClone for Twhere T: Clone,

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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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> FromRef<T> for Twhere T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
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fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more
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impl<T> Hashable for Twhere T: Hash,

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type Output = u64

The type of the output value.
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fn hashed(&self) -> u64

A well-distributed integer derived from the data.
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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 Twhere 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> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<T> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ProgressEventTimestamp for Twhere T: Data + Debug + Any,

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fn as_any(&self) -> &(dyn Any + 'static)

Upcasts this ProgressEventTimestamp to Any. Read more
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fn type_name(&self) -> &'static str

Returns the name of the concrete type of this object. Read more
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impl<P, R> ProtoType<R> for Pwhere R: RustType<P>,

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impl<T> Refines<T> for Twhere T: Timestamp,

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fn to_inner(other: T) -> T

Converts the outer timestamp to an inner timestamp.
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fn to_outer(self) -> T

Converts the inner timestamp to an outer timestamp.
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fn summarize(path: <T as Timestamp>::Summary) -> <T as Timestamp>::Summary

Summarizes an inner path summary as an outer path summary. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T> ToOwned for Twhere 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> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for Twhere 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 Twhere 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<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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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
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impl<T> Data for Twhere T: Clone + 'static,

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impl<T> Data for Twhere T: Send + Sync + Any + Serialize + for<'a> Deserialize<'a> + 'static,

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impl<T> Data for Twhere T: Data + Ord + Debug,

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impl<T> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,

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impl<T> ExchangeData for Twhere T: Data + Data,

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impl<T> ExchangeData for Twhere T: ExchangeData + Ord + Debug,

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impl<P> Partition for Pwhere P: Clone + Debug + Send + Sync + Serialize + DeserializeOwned + Hash + Ord + 'static,