Examples of org.apache.commons.collections.ReferenceMap$SoftRef

org.apache.commons.collections.ReferenceMap
sun.com/j2se/1.4/docs/api/java/util/WeakHashMap.html"> WeakHashMap. However, you can also specify hard keys and weak values, or any other combination. The default constructor uses hard keys and soft values, providing a memory-sensitive cache.
The algorithms used are basically the same as those in {@link java.util.HashMap}. In particular, you can specify a load factor and capacity to suit your needs. All optional {@link Map} operations are supported.
However, this {@link Map} implementation does notallow null elements. Attempting to add a null key or or a null value to the map will raise a NullPointerException.
As usual, this implementation is not synchronized. You can use {@link java.util.Collections#synchronizedMap} to provide synchronized access to a ReferenceMap. @see java.lang.ref.Reference @deprecated Moved to map subpackage. Due to be removed in v4.0. @since Commons Collections 2.1 @version $Revision: 1.22 $ $Date: 2004/02/18 01:15:42 $ @author Paul Jack

    }


    public void clearAll() {
        // Just make a new one
        if (log.isDebugEnabled()) log.debug("Cleared entire " + type + " cache.");
        cache = Collections.synchronizedMap(new ReferenceMap());
        if (cacheMonitor != null) {
            cacheMonitor.allElementsEvicted();
        }
    }

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    public SoftRandomAccessResultList(ResultObjectProvider rop) {
        super(rop);
    }


    protected Map newRowMap() {
        return new ReferenceMap();
    }

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   */
  private synchronized void init() {
    if (this.objectCache == null)
      this.objectCache =
        Collections.synchronizedMap(
          new ReferenceMap(ReferenceMap.SOFT, ReferenceMap.SOFT));
  }

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  public StatefulPersistenceContext(SessionImplementor session) {
    this.session = session;


    entitiesByKey = new HashMap( INIT_COLL_SIZE );
    entitiesByUniqueKey = new HashMap( INIT_COLL_SIZE );
    proxiesByKey = new ReferenceMap( ReferenceMap.HARD, ReferenceMap.WEAK );
    entitySnapshotsByKey = new HashMap( INIT_COLL_SIZE );


    entityEntries = IdentityMap.instantiateSequenced( INIT_COLL_SIZE );
    collectionEntries = IdentityMap.instantiateSequenced( INIT_COLL_SIZE );
    collectionsByKey = new HashMap( INIT_COLL_SIZE );

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        rtn.entitiesByUniqueKey.put( EntityUniqueKey.deserialize( ois, session ), ois.readObject() );
      }


      count = ois.readInt();
      log.trace( "staring deserialization of [" + count + "] proxiesByKey entries" );
      rtn.proxiesByKey = new ReferenceMap( ReferenceMap.HARD, ReferenceMap.WEAK, count < INIT_COLL_SIZE ? INIT_COLL_SIZE : count, .75f );
      for ( int i = 0; i < count; i++ ) {
        EntityKey ek = EntityKey.deserialize( ois, session );
        Object proxy = ois.readObject();
        if ( proxy instanceof HibernateProxy ) {
          ( ( HibernateProxy ) proxy ).getHibernateLazyInitializer().setSession( session );

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    /**
     * @see org.apache.avalon.framework.service.Serviceable#service(ServiceManager)
     */
    public void service(ServiceManager comp) {
        compMgr = new DefaultServiceManager(comp);
        mailboxes = new ReferenceMap();
    }

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    /**
     * @see org.apache.avalon.framework.service.Serviceable#service(ServiceManager)
     */
    public void service(ServiceManager comp) {
        compMgr = new DefaultServiceManager(comp);
        mailboxes = new ReferenceMap();
    }

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     */
    public void initialize()
        throws Exception {


        getLogger().info("JamesMailStore init...");
        repositories = new ReferenceMap();
        classes = new HashMap();
        defaultConfigs = new HashMap();
        Configuration[] registeredClasses
            = configuration.getChild("repositories").getChildren("repository");
        for ( int i = 0; i < registeredClasses.length; i++ )

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     */
    public void initialize()
        throws Exception {


        getLogger().info("JamesMailStore init...");
        repositories = new ReferenceMap();
        classes = new HashMap();
        defaultConfigs = new HashMap();
        Configuration[] registeredClasses
            = configuration.getChild("repositories").getChildren("repository");
        for ( int i = 0; i < registeredClasses.length; i++ )

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  public StatefulPersistenceContext(SessionImplementor session) {
    this.session = session;


    entitiesByKey = new HashMap( INIT_COLL_SIZE );
    entitiesByUniqueKey = new HashMap( INIT_COLL_SIZE );
    proxiesByKey = new ReferenceMap( ReferenceMap.HARD, ReferenceMap.WEAK );
    entitySnapshotsByKey = new HashMap( INIT_COLL_SIZE );


    entityEntries = IdentityMap.instantiateSequenced( INIT_COLL_SIZE );
    collectionEntries = IdentityMap.instantiateSequenced( INIT_COLL_SIZE );
    collectionsByKey = new HashMap( INIT_COLL_SIZE );

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