Iterator iter = rsets.iterator( ); while ( iter.hasNext( ) )
IResultSet rset = getResultSet( ); if ( rset == null )
	public boolean has( String name, Scriptable start )	{		Iterator iter = rsets.iterator( );		while ( iter.hasNext( ) )		{			IResultSet rset = (IResultSet) iter.next( );			try			{				IResultMetaData metaData = rset.getResultMetaData( );				for ( int i = 0; i < metaData.getColumnCount( ); i++ )				{					String colName = metaData.getColumnName( i );					if ( colName.equals( name ) )					{						return true;					}				}			}			catch ( BirtException ex )			{				// not exist			}		}		return false;	}