content: package org.rocksdb;
  
  /**
   * The config for skip-list memtable representation.
   */
  public class SkipListMemTableConfig extends MemTableConfig {
  
    public static final long DEFAULT_LOOKAHEAD = 0;
  
    /**
     * SkipListMemTableConfig constructor
     */
    public SkipListMemTableConfig() {
      lookahead_ = DEFAULT_LOOKAHEAD;
    }
  
    /**
     * Sets lookahead for SkipList
     *
     * @param lookahead If non-zero, each iterator's seek operation
     *     will start the search from the previously visited record
     *     (doing at most 'lookahead' steps). This is an
     *     optimization for the access pattern including many
     *     seeks with consecutive keys.
     * @return the current instance of SkipListMemTableConfig
     */
    public SkipListMemTableConfig setLookahead(final long lookahead) {
      lookahead_ = lookahead;
      return this;
    }
  
    /**
     * Returns the currently set lookahead value.
     *
     * @return lookahead value
     */
    public long lookahead() {
      return lookahead_;
    }
  
  
    @Override protected long newMemTableFactoryHandle() {
      return newMemTableFactoryHandle0(lookahead_);
    }
  
    private native long newMemTableFactoryHandle0(long lookahead)
        throws IllegalArgumentException;
  
    private long lookahead_;
  }
  