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<?php
declare(strict_types=1);
namespace OpenTelemetry\API\Trace;
use OpenTelemetry\Context\ContextInterface;
/**
* Obtained from a {@see TracerInterface} and used to construct a {@see SpanInterface}.
*/
interface SpanBuilderInterface
{
/**
* Sets the parent `Context`.
*
* @param ContextInterface|false|null $context the parent context, null to use the
* current context, false to set no parent
* @return SpanBuilderInterface this span builder
*
* @see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/api.md#span-creation
*/
public function setParent($context): SpanBuilderInterface;
public function addLink(SpanContextInterface $context, iterable $attributes = []): SpanBuilderInterface;
public function setAttribute(string $key, $value): SpanBuilderInterface;
public function setAttributes(iterable $attributes): SpanBuilderInterface;
/**
* Sets an explicit start timestamp for the newly created {@see SpanInterface}.
* The provided *$timestamp* is assumed to be in nanoseconds.
*
* Defaults to the timestamp when {@see SpanBuilderInterface::startSpan} was called if not explicitly set.
*/
public function setStartTimestamp(int $timestampNanos): SpanBuilderInterface;
/**
* @psalm-param SpanKind::KIND_* $spanKind
*/
public function setSpanKind(int $spanKind): SpanBuilderInterface;
/**
* Starts and returns a new {@see SpanInterface}.
*
* The user _MUST_ manually end the span by calling {@see SpanInterface::end}.
*
* This method does _NOT_ automatically install the span into the current context.
* The user is responsible for calling {@see SpanInterface::activate} when they wish to do so.
*/
public function startSpan(): SpanInterface;
}
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