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• PercentileSnapshot.java

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se.l4.vibe.percentile.PercentileSnapshot Maven / Gradle / Ivy

package se.l4.vibe.percentile;

import se.l4.vibe.probes.ModifiableData;

/**
 * Snapshot of the state of a {@link PercentileCounter}.
 * 
 * @author Andreas Holstenson
 *
 */
public interface PercentileSnapshot
	extends ModifiableData
{
	/**
	 * Get the total value measured.
	 * 
	 * @return
	 */
	long getTotal();
	
	/**
	 * Get how many times we have measured.
	 * 
	 * @return
	 */
	long getSamples();
	
	/**
	 * Estimate the value of the given percentile. This gives the
	 * maximum upper bound if the {@link PercentileCounter} uses
	 * some form of ranges.
	 * 
	 * @param percentile
	 * @return
	 */
	long estimatePercentile(int percentile);
}