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;
  
  import com.google.common.base.MoreObjects;
  
  import org.apache.cassandra.index.sai.postings.OrdinalPostingList;
  import org.apache.cassandra.index.sai.postings.PostingList;
  
  public class ArrayPostingList implements OrdinalPostingList
  {
      private final long[] postings;
      private int idx = 0;
  
      public ArrayPostingList(long... postings)
      {
          this.postings = postings;
      }
  
      @Override
      public long getOrdinal()
      {
          return idx;
      }
  
      @Override
      public long nextPosting()
      {
          if (idx >= postings.length)
          {
              return PostingList.END_OF_STREAM;
          }
          return postings[idx++];
      }
  
      @Override
      public long size()
      {
          return postings.length;
      }
  
      @Override
      public long advance(long targetRowID)
      {
          for (int i = idx; i < postings.length; ++i)
          {
              final long segmentRowId = getPostingAt(i);
  
              idx++;
  
              if (segmentRowId >= targetRowID)
              {
                  return segmentRowId;
              }
          }
          return PostingList.END_OF_STREAM;
      }
  
      @Override
      public String toString()
      {
          return MoreObjects.toStringHelper(this)
                            .add("idx", idx)
                            .add("hashCode", Integer.toHexString(hashCode()))
                            .toString();
      }
  
      public void reset()
      {
          idx = 0;
      }
  
      public long getPostingAt(int i)
      {
          return postings[i];
      }
  }
  