Method getDeferredRoot

src/HBaseClient.java:4152–4171

Returns a deferred that will be called back once we found -ROOT-. @return A deferred which will be invoked with an unspecified argument once we know where -ROOT- is. Note that by the time you get called back, we may have lost the connection to the -ROOT- region again.

()

     * back, we may have lost the connection to the -ROOT- region again.
     */
    public Deferred<Object> getDeferredRoot() {
      final Deferred<Object> d = new Deferred<Object>();
      synchronized (this) {
        try {
          connectZK();  // Kick off a connection if needed.
          if (deferred_rootregion == null) {
            LOG.info("Need to find the "
                     + (has_root ? (split_meta ? new String(HBASE98_ROOT_REGION) : new String(ROOT)) : 
                       (split_meta ? new String(HBASE96_META) : new String(META))) 
                     + " region");
            deferred_rootregion = new ArrayList<Deferred<Object>>();
          }
          deferred_rootregion.add(d);
        } catch (NonRecoverableException e) {
          LOG.error(e.getMessage(), e.getCause());
          d.callback(e);
        }
      }
      return d;
    }

    /**
     * Like {@link getDeferredRoot} but returns null if we're not already