Struct Checkpoint 

pub struct Checkpoint { /* private fields */ }

A point in a conversation’s log: the next offset each partition of each named topic will write, as captured by ContextScope::checkpoint. A ContextAssembler built with to_checkpoint folds history up to it, and one built with from_checkpoint resumes after it. It is a client-side bookmark keyed by topic (AgentTopic::topic_string), never a record on the log.

Implementations

impl Checkpoint

pub fn topic_offsets(&self, topic: &str) -> Option<&BTreeMap<u32, u64>>

The per-partition offsets for topic (by AgentTopic::topic_string), or None when the checkpoint was not taken over that topic.

pub fn topics(&self) -> impl Iterator<Item = (&str, &BTreeMap<u32, u64>)>

Every checkpointed topic with its partition offsets, by topic name.

pub fn is_empty(&self) -> bool

True when no named topic was checkpointed.

Trait Implementations

impl Clone for Checkpoint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Checkpoint

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

Formats the value using the given formatter.

impl Default for Checkpoint

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Checkpoint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Checkpoint

impl PartialEq for Checkpoint

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Checkpoint

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Checkpoint