public boolean postExists(final Get get, boolean result) throws IOException {
    if (this.coprocEnvironments.isEmpty()) {
      return result;
    }
    return execOperationWithResult(
      new ObserverOperationWithResult<RegionObserver, Boolean>(regionObserverGetter, result) {
        @Override
        public Boolean call(RegionObserver observer) throws IOException {
          return observer.postExists(this, get, getResult());
        }
      });
  }
@param get    the Get request
@param result the result returned by the region server
@return the result to return to the client
@exception IOException Exception
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java