Examples of CacheMap

com.sun.jmx.remote.opt.util.CacheMap

Like WeakHashMap, except that the keys of the n most recently-accessed entries are kept as {@link SoftReference softreferences}. Accessing an element means creating it, or retrieving it with {@link #get(Object) get}. Because these entries are kept with soft references, they will tend to remain even if their keys are not referenced elsewhere. But if memory is short, they will be removed.
com.sun.jmx.remote.util.CacheMap

Like WeakHashMap, except that the keys of the n most recently-accessed entries are kept as {@link SoftReference softreferences}. Accessing an element means creating it, or retrieving it with {@link #get(Object) get}. Because these entries are kept with soft references, they will tend to remain even if their keys are not referenced elsewhere. But if memory is short, they will be removed.
org.apache.lenya.util.CacheMap
A map with a maximum capacity. When the map is full, the oldest entry is removed. @deprecated Use org.apache.commons.collections.map.LRUMap
org.apache.marmotta.kiwi.ehcache.util.CacheMap
A map API wrapper around EHCache caches so it is compatible with the KiWi caching API. @author Sebastian Schaffert (sschaffert@apache.org)
org.apache.openjpa.util.CacheMap
Fixed-size map that has ability to pin/unpin entries and move overflow to a backing soft map. @author Patrick Linskey @author Abe White
org.knopflerfish.util.CacheMap
Timeout version of a HashMap.
Entries in the map have a limited lifelength, and the get method will only return the stored object during a limited time period.

After the timeout period, thr object will be removed.
@see CachedObject
org.zkoss.util.CacheMap
The cache map. The key-to-value mappings hold in this map is temporary. They are removed when GC demanding memory and a criteria is met. The criteria is whether the mapping is old enough (called lifetime), or the upper bound is hit (called max-size).
The criteria can be changed by overriding {@link #canExpunge}. When to check the criteria can be changed by overriding {@link #shallExpunge}.
If the criteria is totally independent of GC, you could override {@link #newQueue} to return null. Then, {@link #shallExpunge}always returns true (rather than when GC is activated) -- of course, you could override {@link #shallExpunge}, too.
It is different from WeakHashMap:
- The mapping might be removed even if the key is hold somewhere (i.e., strong reachable).
- The mapping might not be removed when GC demanding memory if the criteria doesn't meet.
- It is not serializable.
Like other maps, it is not thread-safe. To get one, use java.util.Collections.synchronizedMap.
Implementation Note: there is another version of CacheMap that uses WeakReference for each value (refer to obsolete). The drawback is that all mapping will be queued and need to be examined, because GC tends to release all reference at once.
We don't use PhantomReference because it is still required to re-create the reference after enqueued. @author tomyeh

Examples of org.apache.openjpa.util.CacheMap

            }


            if (cache instanceof DelegatingDataCache)
                cache = ((DelegatingDataCache) cache).getInnermostDelegate();
            if (cache instanceof ConcurrentDataCache) {
                CacheMap map = ((ConcurrentDataCache) cache).getCacheMap();
                map.setCacheSize(3);
                map.setSoftReferenceSize(0);
            } 


            startTx(em);
            CacheObjectH h = new CacheObjectH("h");
            em.persist(h);

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Examples of org.apache.openjpa.util.CacheMap

  private ReentrantLock _lock = new ReentrantLock();
  private Log _log;
    private static Localizer _loc = Localizer.forPackage(PreparedQueryCacheImpl.class);
    
  public PreparedQueryCacheImpl() {
    _delegate = new CacheMap();
    _uncachables = new CacheMap();
    _exclusionPatterns = new ArrayList<Exclusion>();
  }

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Examples of org.apache.openjpa.util.CacheMap


    /**
     * Return the map to use as an internal cache.
     */
    protected CacheMap newCacheMap() {
        return new CacheMap();
    }

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Examples of org.apache.openjpa.util.CacheMap

    /**
     * Return the map to use as an internal cache; entry expirations must
     * invoke {@link AbstractDataCache#keyRemoved}.
     */
    protected CacheMap newCacheMap() {
        return new CacheMap() {
            protected void entryRemoved(Object key, Object value,
                boolean expired) {
                keyRemoved(key, expired);
            }
        };

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Examples of org.apache.openjpa.util.CacheMap

            }


            if (cache instanceof DelegatingDataCache)
                cache = ((DelegatingDataCache) cache).getInnermostDelegate();
            if (cache instanceof ConcurrentDataCache) {
                CacheMap map = ((ConcurrentDataCache) cache).getCacheMap();
                map.setCacheSize(3);
                map.setSoftReferenceSize(0);
            } else if (cache instanceof ConcurrentDataCache) {
                CacheMap map = ((ConcurrentDataCache) cache).getCacheMap();
                map.setCacheSize(3);
                map.setSoftReferenceSize(0);
            }


            startTx(em);
            CacheObjectH h = new CacheObjectH("h");
            em.persist(h);

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Examples of org.apache.openjpa.util.CacheMap

    /**
     * Return the map to use as an internal cache; entry expirations must
     * invoke {@link AbstractDataCache#keyRemoved}.
     */
    protected CacheMap newCacheMap() {
        return new CacheMap() {
            protected void entryRemoved(Object key, Object value,
                boolean expired) {
                keyRemoved(key, expired);
            }
        };

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Examples of org.apache.openjpa.util.CacheMap


    /**
     * Return the map to use as an internal cache.
     */
    protected CacheMap newCacheMap() {
        return new CacheMap();
    }

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Examples of org.apache.openjpa.util.CacheMap

     * query cache.
     * 
     */
    protected int queryCacheGet() {
        ConcurrentQueryCache dcache = getQueryCache();
        CacheMap map = dcache.getCacheMap();
        return map.size();
    }

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Examples of org.apache.openjpa.util.CacheMap

            }


            if (cache instanceof DelegatingDataCache)
                cache = ((DelegatingDataCache) cache).getInnermostDelegate();
            if (cache instanceof ConcurrentDataCache) {
                CacheMap map = ((ConcurrentDataCache) cache).getCacheMap();
                map.setCacheSize(3);
                map.setSoftReferenceSize(0);
            } 


            startTx(em);
            CacheObjectH h = new CacheObjectH("h");
            em.persist(h);

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Examples of org.apache.openjpa.util.CacheMap

            }


            if (cache instanceof DelegatingDataCache)
                cache = ((DelegatingDataCache) cache).getInnermostDelegate();
            if (cache instanceof ConcurrentDataCache) {
                CacheMap map = ((ConcurrentDataCache) cache).getCacheMap();
                map.setCacheSize(3);
                map.setSoftReferenceSize(0);
            } else if (cache instanceof ConcurrentDataCache) {
                CacheMap map = ((ConcurrentDataCache) cache).getCacheMap();
                map.setCacheSize(3);
                map.setSoftReferenceSize(0);
            }


            startTx(em);
            CacheObjectH h = new CacheObjectH("h");
            em.persist(h);

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