ej.trace

Interface Tracer.TracerService

Enclosing class:

Tracer

public static interface Tracer.TracerService

Indirection for the implementation.

Method Summary

Modifier and Type	Method and Description
default boolean	isTraceStarted() Tests whether the trace system is started or not.
default void	recordEvent(int groupId, int eventId, int... values) Traces an event.
default void	recordEventEnd(int groupId, int eventId, int... values) Traces an "end" event.
default int	registerGroup(byte[] groupNameBuffer, int nbEventTypes) Registers a group and returns the native identifier that identifies it.
default int	registerGroup(java.lang.String groupName, int nbEventTypes) Registers a group and returns the native identifier that identifies it.
default void	startTrace() Starts to record the events.
default void	stopTrace() Stops to record the events.

Method Detail

startTrace

default void startTrace()

Starts to record the events.

By default, the trace system is stopped.

stopTrace

default void stopTrace()

Stops to record the events. When the record system is stopped, any call to the recordEvent(int, int, int...) methods will not record any events.

By default, the trace system is stopped.

isTraceStarted

default boolean isTraceStarted()

Tests whether the trace system is started or not.

Returns:

true if the trace system is started, false otherwise.

registerGroup

default int registerGroup(byte[] groupNameBuffer,
                          int nbEventTypes)

Registers a group and returns the native identifier that identifies it.

Parameters:

groupNameBuffer - name of the group. A null terminated string

nbEventTypes - maximum number of event ids for the registered group

Returns:

a new group id for the given name

registerGroup

default int registerGroup(java.lang.String groupName,
                          int nbEventTypes)

Registers a group and returns the native identifier that identifies it.

Parameters:

groupName - name of the group

nbEventTypes - maximum number of event ids for the registered group

Returns:

a new group id for the given name

recordEvent

default void recordEvent(int groupId,
                         int eventId,
                         int... values)

Traces an event.

Parameters:

groupId - identifier of the group of events

eventId - the event identifier

values - the event parameters

recordEventEnd

default void recordEventEnd(int groupId,
                            int eventId,
                            int... values)

Traces an "end" event.

Parameters:

groupId - identifier of the group of events

eventId - the "end" event identifier

values - the "end" event parameters