Package jdbm.helper

Examples of jdbm.helper.Tuple

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         }
         return null;
      }

      Fqn keys = keys(name);
      Tuple t = new Tuple();
      Map map = new HashMap();

      synchronized (tree)
      {
         TupleBrowser browser = tree.browse(keys);
         while (browser.getNext(t))
         {
            Fqn fqn = (Fqn) t.getKey();
            if (!fqn.isChildOf(keys))
            {
               break;
            }
            Object k = fqn.getLastElement();
            Object v = t.getValue();
            map.put(nullUnmask(k), nullUnmask(v));
         }
      }

      if (trace)
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         log.trace("erase " + name + " self=" + self);
      }
      synchronized (tree)
      {
         TupleBrowser browser = tree.browse(name);
         Tuple t = new Tuple();
         if (browser.getNext(t) && self)
         {
            tree.remove(t.getKey());
         }

         while (browser.getNext(t))
         {
            Fqn fqn = (Fqn) t.getKey();
            if (!fqn.isChildOf(name))
            {
               break;
            }
            tree.remove(fqn);
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    * Dumps the tree past the key to debug.
    */
   public void dump(Object key) throws IOException
   {
      TupleBrowser browser = tree.browse(key);
      Tuple t = new Tuple();
      log.debug("contents: " + key);
      while (browser.getNext(t))
      {
         log.debug(t.getKey() + "\t" + t.getValue());
      }
      log.debug("");
   }
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            Object lastAckedSequenceNumber = lastAcked.getSequenceNumber();

            // lets iterate through all IDs from the

            //Tuple tuple = new Tuple();
            Tuple tuple = getOrderedIndex().findGreaterOrEqual(lastAckedSequenceNumber);

            TupleBrowser iter = getOrderedIndex().browse();
            while (iter.getNext(tuple)) {
                Long sequenceNumber = (Long) tuple.getKey();
                if (sequenceNumber.compareTo(lastAckedSequenceNumber) > 0) {
                    ActiveMQMessage message = null;

                    // TODO we could probably tune this some more since we have tuple.getValue() already
                    message = getMessageBySequenceNumber(sequenceNumber);
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        }
    }

    public synchronized void recover(QueueMessageContainer container) throws JMSException {
        try {
            Tuple tuple = new Tuple();
            TupleBrowser iter = getOrderedIndex().browse();
            while (iter.getNext(tuple)) {
                Long key = (Long) tuple.getKey();
                MessageIdentity messageIdentity = null;
                if (key != null) {
                    String messageID = (String) tuple.getValue();
                    if (messageID != null) {
                        messageIdentity = new MessageIdentity(messageID, key);
                    }
                }
                if (messageIdentity != null) {
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    }

    public synchronized void start() throws JMSException {
        try {
            // lets iterate through all IDs from the
            Tuple tuple = new Tuple();
            Long lastSequenceNumber = null;
            TupleBrowser iter = getOrderedIndex().browse();
            while (iter.getNext(tuple)) {
                lastSequenceNumber = (Long) tuple.getKey();
            }
            if (lastSequenceNumber != null) {
                this.lastSequenceNumber = lastSequenceNumber.longValue();
                if (log.isDebugEnabled()) {
                    log.debug("Last sequence number is: " + lastSequenceNumber + " for: " + this);
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     * @return
     */
    protected Object findSequenceNumber(String messageID) throws IOException, AlreadyClosedException {
        log.warn("Having to table scan to find the sequence number for messageID: " + messageID);

        Tuple tuple = new Tuple();
        TupleBrowser iter = getOrderedIndex().browse();
        while (iter.getNext(tuple)) {
            Object value = tuple.getValue();
            if (messageID.equals(value)) {
                return tuple.getKey();
            }
        }
        return null;
    }
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   }

   private Set<String> getChildrenNames0(Fqn name) throws IOException
   {
      TupleBrowser browser = tree.browse(name);
      Tuple t = new Tuple();

      if (browser.getNext(t))
      {
         if (!t.getValue().equals(NODE))
         {
            log.trace(" not a node");
            return null;
         }
      }
      else
      {
         log.trace(" no nodes");
         return null;
      }

      Set<String> set = new HashSet<String>();

      // Want only /a/b/c/X nodes
      int depth = name.size() + 1;
      while (browser.getNext(t))
      {
         Fqn fqn = (Fqn) t.getKey();
         int size = fqn.size();
         if (size < depth)
         {
            break;
         }
         if (size == depth && t.getValue().equals(NODE))
         {
            set.add((String) fqn.getLastElement());
         }
      }
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         }
         return null;
      }

      Fqn keys = keys(name);
      Tuple t = new Tuple();
      Map map = new HashMap();

      synchronized (tree)
      {
         TupleBrowser browser = tree.browse(keys);
         while (browser.getNext(t))
         {
            Fqn fqn = (Fqn) t.getKey();
            if (!fqn.isChildOf(keys))
            {
               break;
            }
            Object k = fqn.getLastElement();
            Object v = t.getValue();
            map.put(nullUnmask(k), nullUnmask(v));
         }
      }

      if (log.isTraceEnabled())
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         log.trace("erase " + name + " self=" + self);
      }
      synchronized (tree)
      {
         TupleBrowser browser = tree.browse(name);
         Tuple t = new Tuple();
         if (browser.getNext(t))
         {
            if (self)
            {
               tree.remove(t.getKey());
            }
         }
         while (browser.getNext(t))
         {
            Fqn fqn = (Fqn) t.getKey();
            if (!fqn.isChildOf(name))
            {
               break;
            }
            tree.remove(fqn);
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  • org.activemq.store.jdbm.JdbmTopicMessageStore
  • org.activemq.store.jdbm.OrderTest
  • org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmBrowserBugTest
  • org.apache.directory.server.core.partition.impl.btree.jdbm.KeyBTreeCursorTest
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