Struct CheckpointPolicy 

pub struct CheckpointPolicy {
    pub every_n_records: u64,
    pub on_shutdown: bool,
    pub explicit_only: bool,
}

Policy for when to create checkpoints.

Checkpoints bound the worst-case verification cost. The default policy creates a checkpoint every 1000 records and on graceful shutdown.

Fields

every_n_records: u64

Create a checkpoint every N records. Set to 0 to disable.

on_shutdown: bool

Create a checkpoint on graceful shutdown.

explicit_only: bool

If true, disable automatic checkpoints (only explicit calls).

Implementations

impl CheckpointPolicy

pub fn every(n: u64) -> Self

Creates a policy that checkpoints every N records.

pub fn explicit_only() -> Self

Creates a policy that only creates explicit checkpoints.

pub fn should_checkpoint(&self, offset: Offset) -> bool

Returns true if a checkpoint should be created at this offset.

Trait Implementations

impl Clone for CheckpointPolicy

fn clone(&self) -> CheckpointPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckpointPolicy

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

Formats the value using the given formatter.

impl Default for CheckpointPolicy

fn default() -> Self

Default policy: checkpoint every 1000 records, on shutdown.

impl<'de> Deserialize<'de> for CheckpointPolicy

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for CheckpointPolicy

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CheckpointPolicy

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for CheckpointPolicy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for CheckpointPolicy

impl Eq for CheckpointPolicy

impl StructuralPartialEq for CheckpointPolicy