File	Doc	Category	Size	Date	Package
MutableTimeStatisticImpl.java	API Doc	Glassfish v2 API	6188	Fri May 04 22:25:48 BST 2007	com.sun.enterprise.admin.monitor.stats

MutableTimeStatisticImpl

• java.lang.Object

Fields Summary
private final javax.management.j2ee.statistics.TimeStatistic	initial
private long	methodCount
private long	min
private long	max
private long	total
private long	lastSampleTime

Constructors Summary

public MutableTimeStatisticImpl(javax.management.j2ee.statistics.TimeStatistic initial) Constructs an instance of this class from its immutable equivalent. Note that there are some constraints on the parameter passed: The maxTime, minTime and totTime of param must be same param instance of (immutable) {@link TimeStatistic} this.initial = initial; methodCount = initial.getCount(); min = initial.getMinTime(); max = initial.getMaxTime(); total = initial.getTotalTime(); final boolean minMax = min == max; final boolean minTot = min == total; if (! (minMax && minTot)) throw new IllegalArgumentException("Invalid initial values: " + min + ", " + max + ", " + total); lastSampleTime = initial.getLastSampleTime();

Methods Summary
public long	getCount() return ( this.methodCount);
public java.lang.String	getDescription() return ( initial.getDescription() );
public long	getLastSampleTime() return ( this.lastSampleTime );
public long	getMaxTime() return ( this.max );
public long	getMinTime() return ( this.min );
public java.lang.String	getName() return ( initial.getName() );
public long	getStartTime() return ( initial.getStartTime() );
public long	getTotalTime() return ( this.total );
public java.lang.String	getUnit() return ( initial.getUnit() );
public void	incrementCount(long current) Increments the count of operation execution by 1 and also increases the time consumed. A successful execution of method will have all the data updated as: method count ++ max time, min time and total time are accordingly adjusted param current long indicating time in whatever unit this statistic is calculated if (methodCount == 0) { total = max = min = current; } else { total += current; max = current >= max ? current : max; min = current >= min ? min : current; } methodCount++; lastSampleTime = System.currentTimeMillis();
public javax.management.j2ee.statistics.Statistic	modifiableView() return ( this );
public void	reset() Resets the Statistic. Calling this method has following effect: Initial state of this Statistic is restored as far as Count, Minimum/Maximum and Total time of execution is considered. methodCount = initial.getCount(); min = initial.getMinTime(); max = initial.getMaxTime(); total = initial.getTotalTime(); lastSampleTime = initial.getLastSampleTime();
public void	setDescription(java.lang.String s) try { ((StatisticImpl)this.initial).setDescription(s); } catch(final Exception e) { }
public javax.management.j2ee.statistics.Statistic	unmodifiableView() This method is the essence of this class. Returns the unmodifiable view of this instance. return an instance of {@link TimeStatistic} return ( new TimeStatisticImpl( this.methodCount, this.max, this.min, this.total, initial.getName(), initial.getUnit(), initial.getDescription(), initial.getStartTime(), this.lastSampleTime ) );