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package org.glassfish.external.statistics;

/**
 * The Statistic model and its sub-models specify the data models which are requried to be used to provide the performance data described by the specific attributes in the Stats models. 
 */
public interface Statistic {
    /**
     * The name of this Statistic. 
     */
    String getName();

    /**
     * The unit of measurement for this Statistic.
     * Valid values for TimeStatistic measurements are "HOUR", "MINUTE", "SECOND", "MILLISECOND", "MICROSECOND" and "NANOSECOND". 
     */
    String getUnit();

    /**
     * A human-readable description of the Statistic. 
     */
    String getDescription();

    /**
     * The time of the first measurement represented as a long, whose value is the number of milliseconds since January 1, 1970, 00:00:00. 
     */
    long getStartTime();

    /**
     * The time of the last measurement represented as a long, whose value is the number of milliseconds since January 1, 1970, 00:00:00. 
     */
    long getLastSampleTime();
}