Package org.eclipse.hono.util

Interface ExecutionContext

All Known Subinterfaces:

TelemetryExecutionContext

All Known Implementing Classes:

GenericExecutionContext, 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.
void	put(String key, Object value)	Sets a value for a key.
void	setTracingContext(io.opentracing.SpanContext context)	Sets the OpenTracing context to use for tracking the processing of this context.

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.

setTracingContext

void setTracingContext(io.opentracing.SpanContext context)

Sets the OpenTracing context to use for tracking the processing of this context.

Parameters:

context - The context.

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.