kafka::client::metadata

Struct Topics

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pub struct Topics<'a> { /* private fields */ }
Expand description

A view on the loaded metadata about topics and their partitions.

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impl<'a> Topics<'a>

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pub fn new(client: &KafkaClient) -> Topics<'_>

Constructs a view of the currently loaded topic metadata from the specified kafka client.

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pub fn len(&self) -> usize

Retrieves the number of the underlying topics.

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pub fn is_empty(&self) -> bool

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pub fn iter(&'a self) -> TopicIter<'a>

Provides an iterator over the underlying topics.

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pub fn names(&'a self) -> TopicNames<'a>

A convenience method to return an iterator over the topics’ names.

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pub fn contains(&'a self, topic: &str) -> bool

A convenience method to determine whether the specified topic is known.

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pub fn partitions(&'a self, topic: &str) -> Option<Partitions<'a>>

Retrieves the partitions of a specified topic.

Trait Implementations§

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impl<'a> Debug for Topics<'a>

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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<'a> IntoIterator for &'a Topics<'a>

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type Item = Topic<'a>

The type of the elements being iterated over.
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type IntoIter = TopicIter<'a>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl<'a> IntoIterator for Topics<'a>

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type Item = Topic<'a>

The type of the elements being iterated over.
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type IntoIter = TopicIter<'a>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more

Auto Trait Implementations§

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impl<'a> Freeze for Topics<'a>

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impl<'a> RefUnwindSafe for Topics<'a>

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impl<'a> Send for Topics<'a>

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impl<'a> Sync for Topics<'a>

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impl<'a> Unpin for Topics<'a>

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impl<'a> UnwindSafe for Topics<'a>

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>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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<V, T> VZip<V> for T
where 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