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NCache Professional client for java.
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package com.alachisoft.ncache.jsr107;

import javax.cache.management.CacheStatisticsMXBean;

public class NCacheStatisticsMXBean extends NCacheMXBean implements CacheStatisticsMXBean {

    /**
     * @param jCache
     */
    public NCacheStatisticsMXBean(final NCacheCache jCache) {
        super(jCache, "Statistics");
    }

    /**
     * Clears the statistics counters to 0 for the associated Cache.
     */
    @Override
    public void clear() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        jCache.clear();
    }

    /**
     * The number of get requests that were satisfied by the cache.
     *
     * @return
     */

    @Override
    public long getCacheHits() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return Math.round(getTayzGrid().getHitsPerSec());
    }

    /**
     * This is a measure of cache efficiency.
     *
     * @return
     */
    @Override
    public float getCacheHitPercentage() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        double val = Math.round(getTayzGrid().getHitsRatioSec());

        if (Double.isNaN(val)) {
            return getTayzGrid().getHitsPerSec() == 0 ? 0f : 100f;
        }
        return (float) val * 100;
    }

    /**
     * A miss is a get request that is not satisfied.
     *
     * @return
     */
    @Override
    public long getCacheMisses() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return Math.round(getTayzGrid().getCount());

    }

    /**
     * Returns the percentage of cache accesses that did not find a requested entry in the cache.
     *
     * @return
     */
    @Override
    public float getCacheMissPercentage() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        final double v = getTayzGrid().getHitsRatioSec();
        if (Double.isNaN(v)) {
            return 0f;
        }
        return (float) (1 - v) * 100;
    }

    /**
     * The total number of requests to the cache. This will be equal to the sum of the hits and misses.
     *
     * @return
     */
    @Override
    public long getCacheGets() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return (long) getTayzGrid().getGetsPerSec();
    }

    /**
     * The total number of puts to the cache.
     *
     * @return
     */

    @Override
    public long getCachePuts() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return (long) getTayzGrid().getInsertsPerSec();
    }

    /**
     * The total number of removals from the cache. This does not include evictions, where the cache itself initiates the removal to make space.
     *
     * @return
     */

    @Override
    public long getCacheRemovals() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return (long) getTayzGrid().getDelsPerSec();
    }

    /**
     * The total number of evictions from the cache. An eviction is a removal initiated by the cache itself to free up space. An eviction is not treated as a removal and does not appear in the removal counts.
     *
     * @return
     */
    @Override
    public long getCacheEvictions() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return (long) getTayzGrid().getEvictionPerSec();
    }

    /**
     * The mean time to execute gets.
     *
     * @return
     */
    @Override
    public float getAverageGetTime() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return (long) getTayzGrid().getGetsPerSec();
    }

    /**
     * The mean time to execute puts.
     *
     * @return
     */

    @Override
    public float getAveragePutTime() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return (long) getTayzGrid().getInsertsPerSec();
    }

    /**
     * The mean time to execute removes.
     *
     * @return
     */
    @Override
    public float getAverageRemoveTime() {
        //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        return (long) getTayzGrid().getDelsPerSec();
    }

}