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.index.sai.disk.v1.segment;
  
  import java.io.IOException;
  import java.util.Iterator;
  
  import org.apache.cassandra.index.sai.utils.IndexEntry;
  
  public interface SegmentWriter
  {
      /**
       * Appends a set of terms and associated postings to their respective overall SSTable component files.
       *
       * @param indexEntryIterator an {@link Iterator} of {@link IndexEntry}s sorted in term order.
       *
       * @return metadata describing the location of this inverted index in the overall SSTable terms and postings component files
       */
      SegmentMetadata.ComponentMetadataMap writeCompleteSegment(Iterator<IndexEntry> indexEntryIterator) throws IOException;
  
      /**
       * Returns the number of rows written to the segment
       *
       * @return the number of rows
       */
      long getNumberOfRows();
  }
  