Invocation sequence sensor specification

The sequence tracer provides a means to connect concrete tracer invocations within a user transaction. It acts as a container for the invocations of all tracers within the user transaction and collects the concrete values of their execution. Thus the information gathered by the sequence tracer, allows to present the sequence of all executed tracers for one user transaction. Depending on the tracers executed, this will give information about the execution time of methods (time sensor) or information about when an object is created during the user transaction. Instrumenting a method with the sequence tracer defines the starting point of a trace. All following sensors that are called, must write the result of the invocation to the sequence tracer temporal storage. No additional sequence tracer has to be defined for the sensor to be included with the sequence.

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