content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.cassandra.db.rows;
  
  /**
   * An iterator over rows belonging to a partition.
   *
   * A RowIterator is an UnfilteredRowIterator to which any deletion information has been
   * filtered out. As such, all cell of all rows returned by this iterator are,
   * by definition, live, and hence code using a RowIterator don't have to worry
   * about tombstones and other deletion information.
   *
   * Note that as for UnfilteredRowIterator, the rows returned must be in clustering order (or
   * reverse clustering order if isReverseOrder is true), and the Row objects returned
   * by next() are only valid until the next call to hasNext() or next().
   */
  public interface RowIterator extends BaseRowIterator<Row>
  {
      /**
       * Returns whether the provided iterator has no data.
       */
      public default boolean isEmpty()
      {
          return staticRow().isEmpty() && !hasNext();
      }
  }
  