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Bookmark

faucet_stream::source::mongodb_cdc

Struct Bookmark 

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pub struct Bookmark {
    pub resume_token: Value,
    pub invalidate: bool,
}
Available on crate features source-mongodb-cdc and source-rest only.
Expand description

Durable bookmark wrapping a resume token.

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§resume_token: Value

The opaque resume token as relaxed extended JSON (e.g. {"_data": "..."}).

§invalidate: bool

True when this token was captured from an Invalidate change event (the collection was dropped/renamed, or a dropDatabase for db scope). MongoDB forbids resumeAfter on an invalidate token — only startAfter — so on resume the source must open the next stream with start_after, or every subsequent watch open fails and the CDC pipeline wedges permanently (audit #321 M3). Absent from older bookmarks (defaults false) and omitted from the serialized state when false.

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impl Bookmark

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pub fn from_token(token: &ResumeToken) -> Result<Bookmark, FaucetError>

Build a bookmark from a driver ResumeToken.

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pub fn from_value(v: Value) -> Result<Bookmark, FaucetError>

Parse a bookmark previously emitted by to_value.

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pub fn to_value(&self) -> Result<Value, FaucetError>

Serialize for the state store.

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pub fn to_token(&self) -> Result<ResumeToken, FaucetError>

Decode the stored resume token back into a driver ResumeToken.

Trait Implementations§

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impl Clone for Bookmark

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fn clone(&self) -> Bookmark

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Bookmark

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for Bookmark

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fn default() -> Bookmark

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

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

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for Bookmark

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl Serialize for Bookmark

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

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for Bookmark

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