Examples of SoftValueHashMap

com.lightcrafts.utils.SoftValueHashMap
SoftValueHashMap is a volatile cache that utilizes SoftReferences of the value itself rather than the key. The benefit over a WeakHashMap is that a WeakHashMap uses WeakReferences for keys. Since keys are often Strings, and Strings are often interned, there is the potential that an entry will never be garbage collected. Also, WeakReferences are garbage collected too frequently for the type of volatile caching for which SoftValueHashMap is intended.
org.geotools.util.SoftValueHashMap
A hash map implementation that uses {@linkplain SoftReference soft references}, leaving memory when an entry is not used anymore and memory is low.
This map implementation actually maintains some of the first entries as hard references. Only oldest entries are retained by soft references, in order to avoid too aggressive garbage collection. The amount of entries to retain by hard reference is specified at {@linkplain #SoftValueHashMap(int) construction time}.
This map is thread-safe. It accepts the null key, but doesn't accepts null values. Usage of {@linkplain #values value}, {@linkplain #keySet key} or {@linkplain #entrySet entry}collections are supported except for direct usage of their iterators, which may throw {@link java.util.ConcurrentModificationException} randomly depending on the garbage collectoractivity. @param < K> The type of keys in the map. @param < V> The type of values in the map. @since 2.3 @source $URL$ @version $Id$ @author Simone Giannecchini @author Martin Desruisseaux
org.jboss.util.collection.SoftValueHashMap
This Map will remove entries when the value in the map has been cleaned from garbage collection @version $Revision$ @author Bill Burke

Examples of com.lightcrafts.utils.SoftValueHashMap


        this.engine = engine;


        source = image;
        if (source != null) {
            backgroundCache = new SoftValueHashMap();
            source.addTileComputationListener(tileManager);
            // Swing geometry
            setPreferredSize(new Dimension(source.getWidth(), source.getHeight()));
        }
        setOpaque(true);

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Examples of com.lightcrafts.utils.SoftValueHashMap

        validImageBackground = new boolean[maxTileX+1][maxTileY+1];


        synchronizedImage = synchronous;


        if (oldImage == null || !oldImage.getBounds().equals(image.getBounds())) {
            backgroundCache = new SoftValueHashMap();


            // Swing geometry
            Dimension dim = new Dimension(source.getWidth(), source.getHeight());
            setPreferredSize(dim);
        }

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Examples of org.geotools.util.SoftValueHashMap

    XSDTypeDefinition container;


    public BindingWalker(BindingLoader factory) {
        this.loader = factory;


        chains = new SoftValueHashMap(100);
        typeWalker = new TypeWalker();
    }

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Examples of org.jboss.util.collection.SoftValueHashMap

    * Tests of the SoftValueHashMap
    * @throws Exception
    */
   public void testSoftValueHashMap() throws Exception
   {
      SoftValueHashMap map = new SoftValueHashMap();
      for(int n = 0; n < 1000; n ++)
      {
         String key = "Key#"+n;
         String value = "Value#"+n;
         map.put(key, value);
      }
      assertEquals("Size == 1000", 1000, map.size());
      forceSoftRefCollection();
      assertEquals("Size == 0 after gc", 0, map.size());
   }

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