File	Doc	Category	Size	Date	Package
MutableAverageRangeStatisticImpl.java	API Doc	Glassfish v2 API	6861	Fri May 04 22:25:48 BST 2007	com.sun.enterprise.admin.monitor.stats

MutableAverageRangeStatisticImpl

• java.lang.Object

Fields Summary
public static final long	DEFAULT_MAX_BOUND DEFAULT_UPPER_BOUND is maximum value Long can attain
private MutableBoundedRangeStatisticImpl	mutableBoundedRangeStat
private long	numberOfSamples
private long	runningTotal
private String	description

Constructors Summary

public MutableAverageRangeStatisticImpl(javax.management.j2ee.statistics.BoundedRangeStatistic initial) Constructs an instance of MutableAverageRangeStatisticImpl that encapsulates the given Statistic. The only parameter denotes the initial state of this statistic. It is guaranteed that the initial state is preserved internally, so that one can reset to the initial state. param initial an instance of BoundedRangeStatistic that represents initial state mutableBoundedRangeStat = new MutableBoundedRangeStatisticImpl(initial); numberOfSamples = 0L; runningTotal = 0L; description = initial.getDescription();

Methods Summary
public long	getAverage() if(numberOfSamples == 0) { return -1; } else { return runningTotal / numberOfSamples; }
public long	getCurrent() return mutableBoundedRangeStat.getCurrent();
public java.lang.String	getDescription() return description; //return mutableBoundedRangeStat.getDescription();
public long	getHighWaterMark() return mutableBoundedRangeStat.getHighWaterMark();
public long	getLastSampleTime() return mutableBoundedRangeStat.getLastSampleTime();
public long	getLowWaterMark() long result = mutableBoundedRangeStat.getLowWaterMark(); if(result == DEFAULT_MAX_BOUND) { result = 0L; } return result;
public java.lang.String	getName() return mutableBoundedRangeStat.getName();
public long	getStartTime() return mutableBoundedRangeStat.getStartTime();
public java.lang.String	getUnit() return mutableBoundedRangeStat.getUnit();
public javax.management.j2ee.statistics.Statistic	modifiableView() return this;
public void	reset() mutableBoundedRangeStat.reset(); this.resetAverageStats();
private void	resetAverageStats() numberOfSamples = 0L; runningTotal = 0L;
public void	setCount(long current) mutableBoundedRangeStat.setCount(current); if(DEFAULT_MAX_BOUND - runningTotal < current) { this.resetAverageStats(); } numberOfSamples++; runningTotal += current;
public javax.management.j2ee.statistics.Statistic	unmodifiableView() return ( new AverageRangeStatisticImpl( this.getCurrent(), // this is the actual changing statistic this.getHighWaterMark(), // highWaterMark may change per current this.getLowWaterMark(), // lowWaterMark may change per current mutableBoundedRangeStat.getUpperBound(), // upperBound is not designed to change mutableBoundedRangeStat.getLowerBound(), // lowerBound is not designed to change mutableBoundedRangeStat.getName(), // name does not change mutableBoundedRangeStat.getUnit(), // unit does not change mutableBoundedRangeStat.getDescription(), // description does not change this.getLastSampleTime(), // changes all the time! this.getStartTime(), // changes if reset is called earlier this.numberOfSamples, // this is the current number of samples this.runningTotal // this is the current running total ));