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.io.sstable;
  
  import java.util.Set;
  
  import com.google.common.collect.ImmutableSet;
  
  import org.apache.cassandra.db.partitions.AbstractUnfilteredPartitionIterator;
  import org.apache.cassandra.db.rows.UnfilteredRowIterator;
  import org.apache.cassandra.io.sstable.format.SSTableReader;
  import org.apache.cassandra.schema.TableMetadata;
  
  public class EmptySSTableScanner extends AbstractUnfilteredPartitionIterator implements ISSTableScanner
  {
      private final SSTableReader sstable;
  
      public EmptySSTableScanner(SSTableReader sstable)
      {
          this.sstable = sstable;
      }
  
      public long getBytesScanned()
      {
          return 0;
      }
  
      public long getLengthInBytes()
      {
          return 0;
      }
  
      public long getCompressedLengthInBytes()
      {
          return 0;
      }
  
      public Set<SSTableReader> getBackingSSTables()
      {
          return ImmutableSet.of(sstable);
      }
  
      public long getCurrentPosition()
      {
          return 0;
      }
  
      public TableMetadata metadata()
      {
          return sstable.metadata();
      }
  
      public boolean hasNext()
      {
          return false;
      }
  
      public UnfilteredRowIterator next()
      {
          return null;
      }
  }