Struct etcd_client::WatchOptions

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pub struct WatchOptions { /* private fields */ }
Expand description

Options for Watch operation.

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impl WatchOptions

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pub const fn new() -> Self

Creates a new WatchOptions.

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pub fn with_range(self, end: impl Into<Vec<u8>>) -> Self

Sets the end of the range [key, end) to watch. If end is not given, only the key argument is watched. If end is equal to ‘\0’, all keys greater than or equal to the key argument are watched.

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pub fn with_from_key(self) -> Self

Watches all keys >= key.

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pub fn with_prefix(self) -> Self

Watches all keys prefixed with key.

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pub fn with_all_keys(self) -> Self

Watches all keys.

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pub const fn with_start_revision(self, revision: i64) -> Self

Sets the revision to watch from (inclusive). No start_revision is “now”.

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pub const fn with_progress_notify(self) -> Self

progress_notify is set so that the etcd server will periodically send a WatchResponse with no events to the new watcher if there are no recent events. It is useful when clients wish to recover a disconnected watcher starting from a recent known revision. The etcd server may decide how often it will send notifications based on current load.

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pub fn with_filters(self, filters: impl Into<Vec<WatchFilterType>>) -> Self

Filter the events at server side before it sends back to the watcher.

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pub const fn with_prev_key(self) -> Self

If prev_kv is set, created watcher gets the previous KV before the event happens. If the previous KV is already compacted, nothing will be returned.

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pub const fn with_watch_id(self, watch_id: i64) -> Self

If watch_id is provided and non-zero, it will be assigned to this watcher. Since creating a watcher in etcd is not a synchronous operation, this can be used ensure that ordering is correct when creating multiple watchers on the same stream. Creating a watcher with an ID already in use on the stream will cause an error to be returned.

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pub const fn with_fragment(self) -> Self

Enables splitting large revisions into multiple watch responses.

Trait Implementations§

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impl Clone for WatchOptions

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fn clone(&self) -> WatchOptions

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 Debug for WatchOptions

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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 WatchOptions

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fn default() -> WatchOptions

Returns the “default value” for a type. Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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