All Known Implementing Classes:

BatchSpanProcessor, SimpleSpanProcessor
```
public interface SpanProcessor
```
SpanProcessor is the interface TracerSdk uses to allow synchronous hooks for when a Span is started or when a Span is ended.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`static SpanProcessor`	`composite(SpanProcessor... processors)`	Returns a `SpanProcessor` which simply delegates all processing to the `processors` in order.
`static SpanProcessor`	`composite(Iterable<SpanProcessor> processors)`	Returns a `SpanProcessor` which simply delegates all processing to the `processors` in order.
`default io.opentelemetry.sdk.common.CompletableResultCode`	`forceFlush()`	Processes all span events that have not yet been processed.
`boolean`	`isEndRequired()`	Returns `true` if this `SpanProcessor` requires end events.
`boolean`	`isStartRequired()`	Returns `true` if this `SpanProcessor` requires start events.
`void`	`onEnd(ReadableSpan span)`	Called when a `Span` is ended, if the `Span.isRecording()` returns true.
`void`	`onStart(io.opentelemetry.context.Context parentContext, ReadWriteSpan span)`	Called when a `Span` is started, if the `Span.isRecording()` returns true.
`default io.opentelemetry.sdk.common.CompletableResultCode`	`shutdown()`	Processes all span events that have not yet been processed and closes used resources.

- Method Detail
  - composite
```
static SpanProcessor composite(SpanProcessor... processors)
```
    Returns a SpanProcessor which simply delegates all processing to the processors in order.
  - composite
```
static SpanProcessor composite(Iterable<SpanProcessor> processors)
```
    Returns a SpanProcessor which simply delegates all processing to the processors in order.
  - onStart
```
void onStart(io.opentelemetry.context.Context parentContext,
             ReadWriteSpan span)
```
    Called when a Span is started, if the Span.isRecording() returns true.
    This method is called synchronously on the execution thread, should not throw or block the execution thread.
    
    Parameters:
    
    parentContext - the parent Context of the span that just started.
    
    span - the ReadableSpan that just started.
  - isStartRequired
```
boolean isStartRequired()
```
    Returns true if this SpanProcessor requires start events.
    
    Returns:
    
    true if this SpanProcessor requires start events.
  - onEnd
```
void onEnd(ReadableSpan span)
```
    Called when a Span is ended, if the Span.isRecording() returns true.
    This method is called synchronously on the execution thread, should not throw or block the execution thread.
    
    Parameters:
    
    span - the ReadableSpan that just ended.
  - isEndRequired
```
boolean isEndRequired()
```
    Returns true if this SpanProcessor requires end events.
    
    Returns:
    
    true if this SpanProcessor requires end events.
  - shutdown
```
default io.opentelemetry.sdk.common.CompletableResultCode shutdown()
```
    Processes all span events that have not yet been processed and closes used resources.
    
    Returns:
    
    a CompletableResultCode which completes when shutdown is finished.
  - forceFlush
```
default io.opentelemetry.sdk.common.CompletableResultCode forceFlush()
```
    Processes all span events that have not yet been processed.
    
    Returns:
    
    a CompletableResultCode which completes when currently queued spans are finished processing.

Interface SpanProcessor

Method Summary

Method Detail

composite

composite

onStart

isStartRequired

onEnd

isEndRequired

shutdown

forceFlush