Class TimerEvent

java.lang.Object
org.glassfish.pfl.tf.timer.spi.TimerEvent

public class TimerEvent extends Object
Represents a particular observable event. We are mostly interested in measuring how long an operation takes. An operation is typically represented by a Timer, and then the timer is used to generate a TimerEvent at the entry to and exit from the operation.

Note that this class can also be used as a base class, in case there is a need to attach extra information to a TimerEvent.

All access to this class is unsynchronized. This class must be used either as an immutable (no calls to update), or access must be restricted to a single thread (as in an iterator).

  • Field Details

  • Constructor Details

  • Method Details

    • toString

      public String toString()
      Overrides:
      toString in class Object
    • update

      public void update(Timer timer, TimerEvent.TimerEventType etype, long time)
      Re-use the same TimerEvent instance with different data. Used to create flyweight instances for iteration over a collection of TimerEvent instances.
    • internalSetData

      private void internalSetData(Timer timer, TimerEvent.TimerEventType etype, long time)
    • incrementTime

      public void incrementTime(long update)
    • timer

      public Timer timer()
      The name of the Timer used to create this entry.
    • type

      Type of event: ENTER for start of interval for a Timer, EXIT for end of the interval.
    • time

      public long time()
      Time of event in nanoseconds since the TimerLog was created or cleared.