public ITotalExprBindings prepareTotalExpressions( List exprs, String groupName )
public ITotalExprBindings prepareTotalExpressions( List exprs )
	public ITotalExprBindings prepareTotalExpressions( List exprs, String groupName )	{				TotalExprBinding result = new TotalExprBinding();		List l = new ArrayList( );		for ( int i = 0; i < exprs.size( ); i++ )		{						Object key = exprs.get( i );			result.addColumnBindings( l );			if ( key instanceof String )			{				String expr = key == null ? null : key.toString( );				String newExpr = prepareTotalExpression( expr, l, groupName );				result.addColumnBindings( l );				result.addNewExpression( newExpr );			}			else if ( key instanceof IConditionalExpression )			{				addConditionalExprBindings( result,						(IConditionalExpression) key,						l, groupName );			}			else if ( key == null )			{				result.addNewExpression( null );			}		}		return result;	}