Module org.apache.lucene.sandbox
Package org.apache.lucene.sandbox.search

Class QueryProfilerTimer

java.lang.Object
org.apache.lucene.sandbox.search.QueryProfilerTimer
class QueryProfilerTimer extends Object
Helps measure how much time is spent running some methods. The start() and stop() methods should typically be called in a try/finally clause with start() being called right before the try block and stop() being called at the beginning of the finally block: 
  timer.start();
  try {
    // code to time
  } finally {
    timer.stop();
  }

  • Field Details

    • doTiming

      private boolean doTiming

    • timing

      private long timing

    • count

      private long count

    • lastCount

      private long lastCount

    • start

      private long start

  • Constructor Details

    • QueryProfilerTimer

      QueryProfilerTimer()

  • Method Details

    • nanoTime

      long nanoTime()
      pkg-private for testing

    • start

      public final void start()
      Start the timer.

    • stop

      public final void stop()
      Stop the timer.

    • getCount

      public final long getCount()
      Return the number of times that start() has been called.

    • getApproximateTiming

      public final long getApproximateTiming()
      Return an approximation of the total time spent between consecutive calls of #start and #stop.