Package org.eclipse.hono.util

Interface ExecutionContext

All Known Subinterfaces:

TelemetryExecutionContext

All Known Implementing Classes:

MapBasedExecutionContext, MapBasedTelemetryExecutionContext

public interface ExecutionContext

A container for information relevant for processing a message sent by a device.

Provides means to store arbitrary key/value pairs.

Method Summary

Modifier and Type	Method	Description
<T> T	get(String key)	Gets the value for a key.
<T> T	get(String key, T defaultValue)	Gets the value for a key.
io.opentracing.SpanContext	getTracingContext()	Gets the OpenTracing context that is used to track the processing of this context.
io.opentracing.Span	getTracingSpan()	Gets the OpenTracing root span that is used to track the processing of this context.
void	put(String key, Object value)	Sets a value for a key.

Method Detail

get

<T> T get(String key)

Gets the value for a key.

Type Parameters:

T - The type of the value.

Parameters:

key - The key to get the value for.

Returns:

The value or null if the key is unknown.

get

<T> T get(String key,
          T defaultValue)

Gets the value for a key.

Type Parameters:

T - The type of the value.

Parameters:

key - The key to get the value for.

defaultValue - The value to return if the key is unknown.

Returns:

The value.

put

void put(String key,
         Object value)

Sets a value for a key.

Parameters:

key - The key.

value - The value.

getTracingContext

io.opentracing.SpanContext getTracingContext()

Gets the OpenTracing context that is used to track the processing of this context.

Returns:

The context or null if no tracing context is set.

getTracingSpan

io.opentracing.Span getTracingSpan()

Gets the OpenTracing root span that is used to track the processing of this context.

Returns:

The span or null if no span is set.