Package org.eclipse.hono.util

Interface ExecutionContext

All Known Implementing Classes:
MapBasedExecutionContext
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 Details

    • 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.