Package org.jppf.utils.stats

Class CumulativeSnapshot

java.lang.Object

org.jppf.utils.stats.AbstractBaseJPPFSnapshot

org.jppf.utils.stats.AbstractJPPFSnapshot

org.jppf.utils.stats.CumulativeSnapshot

All Implemented Interfaces:

Serializable, JPPFSnapshot

public class CumulativeSnapshot
extends AbstractJPPFSnapshot

In this implementation, getLatest() is computed as the cumulated sum of all values added to the snapshot. If values are only added, and not removed, then it will always return the same value as getTotal().

Author:

Laurent Cohen

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.jppf.utils.stats.JPPFSnapshot

JPPFSnapshot.LabelBasedFilter, JPPFSnapshot.LabelExcludingFilter, JPPFSnapshot.LabelIncludingFilter

Constructor Summary

Constructors

Constructor	Description
CumulativeSnapshot(String label)	Initialize this snapshot with a specified title.

Method Summary

Modifier and Type	Method	Description
void	addValues(double accumulatedValues, long count)	Add a set of aggregated values to this snapshot.
void	assignLatestToMax()	Assign the value of getLatest() to max.
JPPFSnapshot	copy()	Make a copy of this time snapshot object.

Methods inherited from class org.jppf.utils.stats.AbstractJPPFSnapshot

getAvg, getLatest, getMax, getMin, getValueCount, reset, toString

Methods inherited from class org.jppf.utils.stats.AbstractBaseJPPFSnapshot

getLabel, getLastUpdateNanos, getTotal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

CumulativeSnapshot

public CumulativeSnapshot(String label)

Initialize this snapshot with a specified title.

Parameters:

label - the title for this snapshot.

Method Details

addValues

public void addValues(double accumulatedValues,
 long count)

Add a set of aggregated values to this snapshot.

Parameters:

accumulatedValues - the accumulated sum of the values to add.

count - the number of values in the accumalated values.

assignLatestToMax

public void assignLatestToMax()

Assign the value of getLatest() to max.

Specified by:

assignLatestToMax in class AbstractJPPFSnapshot

copy

public JPPFSnapshot copy()

Make a copy of this time snapshot object.

Returns:

a TimeSnapshot instance.