mx4j.tools.stats
Interface StatisticsRecorderMBean

All Known Subinterfaces:
ObserverStatisticsRecorderMBean, TimedStatisticsRecorderMBean, ValueStatisticsRecorderMBean
All Known Implementing Classes:
AbstractStatisticsRecorder, NotificationStatisticsRecorder, ObserverStatisticsRecorder, TimedStatisticsRecorder, ValueStatisticsRecorder

public interface StatisticsRecorderMBean

Management interface to be implemented by recorder MBeans. RecorderMBeans store a value and also keep statistics about the given value. Different implementations can determine how to acquire and calculate the value.

The MBean doesn't starts automatically. It has to wait for a start() call

Version:
$Revision: 1.4 $
See Also:
PointTime

Method Summary
 java.lang.Number getAverage()
          Returns the Average Value
 java.util.SortedMap getEntries()
          Returs a sorted map of the recorded values indexed by PointTime
 java.lang.Number getMax()
          Returns the Maximum Value
 int getMaxEntries()
          Returns how many entries may be recorded.
 java.lang.Number getMin()
          Returns the Minimum Value
 java.util.Date getRecordingStart()
          Returns the date when it started recording
 boolean isActive()
          Indicates whether the MBean is recording values
 void setMaxEntries(int maxEntries)
          Sets the maximum entries stored in this recorder
 void start()
          Starts recording a variable
 void stop()
          Stops recording a variable
 

Method Detail

getMax

java.lang.Number getMax()
Returns the Maximum Value


getAverage

java.lang.Number getAverage()
Returns the Average Value


getMin

java.lang.Number getMin()
Returns the Minimum Value


getMaxEntries

int getMaxEntries()
Returns how many entries may be recorded. When the maximum amount is reached the default behaviour is to forget the oldest one


setMaxEntries

void setMaxEntries(int maxEntries)
Sets the maximum entries stored in this recorder


getRecordingStart

java.util.Date getRecordingStart()
Returns the date when it started recording


getEntries

java.util.SortedMap getEntries()
Returs a sorted map of the recorded values indexed by PointTime


isActive

boolean isActive()
Indicates whether the MBean is recording values


start

void start()
Starts recording a variable


stop

void stop()
Stops recording a variable



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