Struct TracesBuilder 

pub struct TracesBuilder {

    id: UInt32Builder,
    trace_id: FixedSizeBinaryBuilder,
    span_id: FixedSizeBinaryBuilder,
    parent_span_id: FixedSizeBinaryBuilder,
    trace_state: StringBuilder,
    flags: UInt32Builder,
    name: DictColumn,
    kind: UInt8Builder,
    start: TimestampNanosecondBuilder,
    duration: UInt64Builder,
    status_code: UInt8Builder,
    status_message: StringBuilder,
    dropped_attrs: UInt32Builder,
    dropped_events: UInt32Builder,
    dropped_links: UInt32Builder,
    resource_id: UInt16Builder,
    scope_id: UInt16Builder,
    span_attrs: AttrsBuilder,
    ev_id: UInt32Builder,
    ev_parent: UInt32Builder,
    ev_time: TimestampNanosecondBuilder,
    ev_name: DictColumn,
    ev_dropped: UInt32Builder,
    event_attrs: AttrsBuilder,
    next_event_id: u32,
    ln_id: UInt32Builder,
    ln_parent: UInt32Builder,
    ln_trace_id: FixedSizeBinaryBuilder,
    ln_span_id: FixedSizeBinaryBuilder,
    ln_trace_state: StringBuilder,
    ln_flags: UInt32Builder,
    ln_dropped: UInt32Builder,
    link_attrs: AttrsBuilder,
    next_link_id: u32,
    rs: ResourceScope,
    next_id: u32,
    min_ts: i64,
    max_ts: i64,
}

Fields

id: UInt32Builder

trace_id: FixedSizeBinaryBuilder

span_id: FixedSizeBinaryBuilder

parent_span_id: FixedSizeBinaryBuilder

trace_state: StringBuilder

flags: UInt32Builder

name: DictColumn

kind: UInt8Builder

start: TimestampNanosecondBuilder

duration: UInt64Builder

status_code: UInt8Builder

status_message: StringBuilder

dropped_attrs: UInt32Builder

dropped_events: UInt32Builder

dropped_links: UInt32Builder

resource_id: UInt16Builder

scope_id: UInt16Builder

span_attrs: AttrsBuilder

ev_id: UInt32Builder

ev_parent: UInt32Builder

ev_time: TimestampNanosecondBuilder

ev_name: DictColumn

ev_dropped: UInt32Builder

event_attrs: AttrsBuilder

next_event_id: u32

ln_id: UInt32Builder

ln_parent: UInt32Builder

ln_trace_id: FixedSizeBinaryBuilder

ln_span_id: FixedSizeBinaryBuilder

ln_trace_state: StringBuilder

ln_flags: UInt32Builder

ln_dropped: UInt32Builder

link_attrs: AttrsBuilder

next_link_id: u32

rs: ResourceScope

next_id: u32

min_ts: i64

max_ts: i64

Implementations

impl TracesBuilder

pub fn new() -> Self

pub fn num_rows(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn approx_bytes(&self) -> usize

Same accounting as crate::logs::LogsBuilder::approx_bytes: fixed-width columns estimated from row counts, variable-width heaps measured. A span is wider than a log record, and events and links are rows of their own.

pub fn has_headroom_for(&self, req: &ExportTraceServiceRequest) -> bool

pub fn append_request( &mut self, req: &ExportTraceServiceRequest, ) -> Result<usize>

fn append_span(&mut self, s: &Span, rid: u16, sid: u16) -> Result<()>

pub fn finish(&mut self) -> Result<Sealed>

Seal and reset, including on the error path — see SignalBuilder::finish.

fn seal(&self, sidecars: Sidecars) -> Result<Sealed>

Trait Implementations

impl Default for TracesBuilder

fn default() -> Self

Returns the “default value” for a type.

impl SignalBuilder for TracesBuilder

const SIGNAL: &'static str = "traces"

Directory component under the data dir. Also the block name prefix, so changing it is an on-disk format change.

type Request = ExportTraceServiceRequest

The decoded OTLP export request this signal accepts.

fn has_headroom_for(&self, req: &Self::Request) -> bool

Whether req is guaranteed to fit without overflowing a UInt16 dictionary or id space.

fn append_request(&mut self, req: &Self::Request) -> Result<usize>

Absorb one export request, returning the number of root-table rows added.

fn approx_bytes(&self) -> usize

Rough resident cost, with variable-width heaps measured rather than estimated from row counts — a 32 KB GenAI prompt must not weigh the same as a 20-byte one.

fn is_empty(&self) -> bool

fn finish(&mut self) -> Result<Sealed>

Seal and reset. After this returns, self is a fresh builder — including on the error path, where the caller has no way to know how far through the column-by-column finish it got.

fn snapshot(&self) -> Result<Sealed>

Materialise the rows accumulated so far without resetting, for Open. Sidecar-free; see Sealed::with.