package org.dbunit.dataset;
   
   /**
    * <p>
    * Copyright (c) 2003 OZ.COM. All Rights Reserved.
    * </p>
    * 
    * @author manuel.laflamme
    * @since Mar 30, 2004
   */
  public class EmptyTableDataSet extends AbstractDataSet
  {
      private final IDataSet _dataSet;
  
      public EmptyTableDataSet(IDataSet dataSet)
      {
          _dataSet = dataSet;
      }
  
      ////////////////////////////////////////////////////////////////////////////
      // IDataSet interface
  
      public String[] getTableNames() throws DataSetException
      {
          return _dataSet.getTableNames();
      }
  
      public ITableMetaData getTableMetaData(String tableName)
              throws DataSetException
      {
          return _dataSet.getTableMetaData(tableName);
      }
  
      public ITable getTable(String tableName) throws DataSetException
      {
          return new DefaultTable(_dataSet.getTableMetaData(tableName));
      }
  
      ////////////////////////////////////////////////////////////////////////////
      // AbstractDataSet class
  
      protected ITableIterator createIterator(boolean reversed)
              throws DataSetException
      {
          return new EmptyTableIterator(
                  reversed ? _dataSet.reverseIterator() : _dataSet.iterator());
      }
  
      public static class EmptyTableIterator implements ITableIterator
      {
          private final ITableIterator _iterator;
  
          public EmptyTableIterator(ITableIterator iterator)
          {
              _iterator = iterator;
          }
  
          public boolean next() throws DataSetException
          {
              return _iterator.next();
          }
  
          public ITableMetaData getTableMetaData() throws DataSetException
          {
              return _iterator.getTableMetaData();
          }
  
          public ITable getTable() throws DataSetException
          {
              return new DefaultTable(_iterator.getTableMetaData());
          }
      }
  }