Package net.sf.ehcache.management

Interface CacheStatisticsMBean

  • All Known Implementing Classes:
    CacheStatistics
    public interface CacheStatisticsMBean
    Since:
    1.3
    Version:
    $Id$
    Author:
    Greg Luck

    • Method Detail

      • getCacheHits

        long getCacheHits()
        The number of times a requested item was found in the cache.
        Returns:
        the number of times a requested item was found in the cache

      • getInMemoryHits

        long getInMemoryHits()
        Number of times a requested item was found in the Memory Store.
        Returns:
        the number of times a requested item was found in memory

      • getOffHeapHits

        long getOffHeapHits()
        Number of times a requested item was found in the off-heap store.
        Returns:
        the number of times a requested item was found off-heap, or 0 if there is no BigMemory storage configured.

      • getOnDiskHits

        long getOnDiskHits()
        Number of times a requested item was found in the Disk Store.
        Returns:
        the number of times a requested item was found on Disk, or 0 if there is no disk storage configured.

      • getCacheMisses

        long getCacheMisses()
        Returns:
        the number of times a requested element was not found in the cache

      • getInMemoryMisses

        long getInMemoryMisses()
        Returns:
        the number of times a requested element was not found in the memory cache

      • getOffHeapMisses

        long getOffHeapMisses()
        Returns:
        the number of times a requested element was not found in the off-heap cache

      • getOnDiskMisses

        long getOnDiskMisses()
        Returns:
        the number of times a requested element was not found in the disk cache

      • getObjectCount

        long getObjectCount()
        Returns:
        the number of elements in the ehcache, with a varying degree of accuracy, depending on accuracy setting.

      • getMemoryStoreObjectCount

        long getMemoryStoreObjectCount()
        Gets the number of objects in the MemoryStore
        Returns:
        the MemoryStore size which is always a count unadjusted for duplicates or expiries

      • getOffHeapStoreObjectCount

        long getOffHeapStoreObjectCount()
        Gets the number of objects in the OffHeapStore
        Returns:
        the OffHeapStore size which is always a count unadjusted for duplicates or expiries

      • getDiskStoreObjectCount

        long getDiskStoreObjectCount()
        Gets the number of objects in the DiskStore
        Returns:
        the DiskStore size which is always a count unadjusted for duplicates or expiries

      • getAssociatedCacheName

        java.lang.String getAssociatedCacheName()
        Returns:
        the name of the Ehcache, or null is there no associated cache

      • getCacheHitPercentage

        double getCacheHitPercentage()
        Returns the percentage of cache accesses that found a requested item in the cache.
        Returns:
        the percentage of successful hits

      • getCacheMissPercentage

        double getCacheMissPercentage()
        Returns the percentage of cache accesses that did not find a requested element in the cache.
        Returns:
        the percentage of accesses that failed to find anything

      • getInMemoryHitPercentage

        double getInMemoryHitPercentage()
        Returns the percentage of cache accesses that found a requested item cached in-memory.
        Returns:
        the percentage of successful hits from the MemoryStore

      • getOffHeapHitPercentage

        double getOffHeapHitPercentage()
        Returns the percentage of cache accesses that found a requested item cached off-heap.
        Returns:
        the percentage of successful hits from the OffHeapStore

      • getOnDiskHitPercentage

        double getOnDiskHitPercentage()
        Returns the percentage of cache accesses that found a requested item cached on disk.
        Returns:
        the percentage of successful hits from the DiskStore.

      • getWriterQueueLength

        long getWriterQueueLength()
        Gets the size of the write-behind queue, if any. The value is for all local buckets
        Returns:
        Elements waiting to be processed by the write behind writer. -1 if no write-behind

      • getWriterMaxQueueSize

        int getWriterMaxQueueSize()
        Gets the maximum size of the write-behind queue, if any.
        Returns:
        Maximum elements waiting to be processed by the write behind writer. -1 if no write-behind