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CheckpointRetentionUpdateResult

laminar_core::checkpoint_decision

Enum CheckpointRetentionUpdateResult 

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pub enum CheckpointRetentionUpdateResult {
    Applied(CheckpointRetentionState),
    Unchanged(CheckpointRetentionState),
    Conflict {
        current: Option<CheckpointRetentionState>,
    },
}
Expand description

Result of a conditional retention-head transition.

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Applied(CheckpointRetentionState)

This call durably changed the retention head.

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Unchanged(CheckpointRetentionState)

The requested state was already durable or an active cleanup must resume first.

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Conflict

Another writer changed the retention head.

Fields

§current: Option<CheckpointRetentionState>

Durable state observed after the failed transition.

Trait Implementations§

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impl Clone for CheckpointRetentionUpdateResult

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fn clone(&self) -> CheckpointRetentionUpdateResult

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 CheckpointRetentionUpdateResult

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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 Eq for CheckpointRetentionUpdateResult

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impl PartialEq for CheckpointRetentionUpdateResult

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fn eq(&self, other: &CheckpointRetentionUpdateResult) -> 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 StructuralPartialEq for CheckpointRetentionUpdateResult

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