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package com.sun.enterprise.admin.monitor.stats;
import org.glassfish.j2ee.statistics.RangeStatistic;
/** An implementation of a RangeStatistic. All instances of this class are
* immutable. Provides all the necessary accessors for properties.
* @author Muralidhar Vempaty
* @author Kedar Mhaswade
* @since S1AS8.0
* @verison 1.0
*/
public final class RangeStatisticImpl extends StatisticImpl implements RangeStatistic {
private final long currentVal;
private final long highWaterMark;
private final long lowWaterMark;
/** Constructs an immutable instance of RangeStatistic.
* @param curVal The current value of this statistic
* @param highMark The highest value of this statistic, since measurement
* started
* @param lowMark The lowest value of this statistic, since measurement
* started
* @param name The name of the statistic
* @param unit The unit of measurement for this statistic
* @param desc A brief description of the statistic
* @param startTime Time in milliseconds at which the measurement was started
* @param sampleTime Time at which the last measurement was done.
*/
public RangeStatisticImpl(long curVal, long highMark, long lowMark,
String name, String unit, String desc,
long startTime, long sampleTime) {
super(name, unit, desc, startTime, sampleTime);
currentVal = curVal;
highWaterMark = highMark;
lowWaterMark = lowMark;
}
/**
* Returns the current value of this statistic.
* @return long indicating the current value
*/
public long getCurrent() {
return currentVal;
}
/**
* Returns the highest value of this statistic, since measurement started.
* @return long indicating high water mark
*/
public long getHighWaterMark() {
return highWaterMark;
}
/**
* Returns the lowest value of this statistic, since measurement started.
* @return long indicating low water mark
*/
public long getLowWaterMark() {
return lowWaterMark;
}
public final String toString() {
return super.toString() + NEWLINE +
"Current: " + getCurrent() + NEWLINE +
"LowWaterMark: " + getLowWaterMark() + NEWLINE +
"HighWaterMark: " + getHighWaterMark();
}
}