com.opencloud.rhino.facilities

Interface Tracer

All Superinterfaces:

Tracer

All Known Subinterfaces:

ExtendedTracer

public interface Tracer
extends Tracer

Rhino extensions to the SLEE-defined Tracer interface.

Since:

Rhino 2.4.0

Method Summary

Modifier and Type	Method and Description
Tracer	getChildTracer(String name) Get a child tracer of this tracer with the specified name.
Tracer	getParentTracer() Get this tracer’s parent tracer.

Methods inherited from interface javax.slee.facilities.Tracer

config, config, fine, fine, finer, finer, finest, finest, getParentTracerName, getTraceLevel, getTracerName, info, info, isConfigEnabled, isFineEnabled, isFinerEnabled, isFinestEnabled, isInfoEnabled, isSevereEnabled, isTraceable, isWarningEnabled, severe, severe, trace, trace, warning, warning

Method Detail

getParentTracer

Tracer getParentTracer()

Get this tracer’s parent tracer. The parent tracer is the tracer with the name returned by Tracer.getParentTracerName(). This method returns null from a root tracer as a root tracer has no parent.

This method is a non-transactional method.

Returns:

the parent tracer, or null if this tracer is a root tracer.

Since:

Rhino 2.4.0

getChildTracer

Tracer getChildTracer(String name)
               throws NullPointerException,
                      IllegalArgumentException,
                      FacilityException

Get a child tracer of this tracer with the specified name.

Given a tracer t and child tracer name n, this method is functionally equivalent to:

    tracerSupplier.getTracer(t.getName().isEmpty() ? n : t.getName() + "." + n);

where tracerSupplier is the SLEE object that originally produced the tracer t, such as an SbbContext or ProfileContext.

This method can be used to create any tracer that is a descendant of t. For example:

    Tracer c = t.getChildTracer("foo.bar");

produces a tracer that is a grandchild of t such that c.getParentTracer().getParentTracerName().equals(t.getTracerName()) holds true.

This method is a non-transactional method.

Parameters:

name - the name of the child tracer.

Returns:

a child tracer for the specified tracer name.

Throws:

NullPointerException - if name is null.

IllegalArgumentException - if name is zero length or would result in an invalid tracer name. Name components within a tracer name must have at least one character. For example, "com.mycompany" is a valid tracer name, whereas "com..mycompany" is not.

FacilityException - if the Tracer could not be obtained due to a system-level failure.

Since:

Rhino 2.4.0