Object used to represent a column in the ORDER BY clauses of a select statement. More...

Inheritance diagram for Deveel.Data.Sql.SortColumn:

Public Member Functions
	SortColumn (SqlExpression expression, bool ascending)
	Constructs the `BY` column reference with the expression and the sort order given. More...

	SortColumn (SqlExpression expression)
	Constructs the `BY` column reference with the expression given and the ascending sort order. More...

	SortColumn (string expression, bool ascending)
	Constructs the `BY` column reference with the expression and the sort order given. More...

	SortColumn (string expression)
	Constructs the `BY` column reference with the expression given and the ascending sort order. More...

Properties
SqlExpression	Expression `[get, set]`
	Gets the expression used to order the result of a query. More...

bool	Ascending `[get, private set]`
	Gets a boolean value indicating whether we're sorting in ascending or descending order. More...

Private Member Functions
object IPreparable.	Prepare (IExpressionPreparer preparer)
	Converts the underlying value of this instance into an object that can be evaluated by an expression. More...

Detailed Description

Object used to represent a column in the ORDER BY clauses of a select statement.

Definition at line 26 of file SortColumn.cs.

Constructor & Destructor Documentation

Deveel.Data.Sql.SortColumn.SortColumn	(	SqlExpression	expression,
		bool	ascending
	)

inline

Constructs the BY column reference with the expression and the sort order given.

Parameters

expression	The expression of the column reference.
ascending	The sort order for the column. If this is set to true, the column will be used to sort the results of a query in ascending order.

Definition at line 35 of file SortColumn.cs.

                                                                     {
             Expression = expression;
             Ascending = ascending;
         }

Deveel.Data.Sql.SortColumn.SortColumn ( SqlExpression expression )

inline

Constructs the BY column reference with the expression given and the ascending sort order.

Parameters

expression The expression of the column reference.

Definition at line 45 of file SortColumn.cs.

46 : this(expression, true) {

47 }

Deveel.Data.Sql.SortColumn.SortColumn	(	string	expression,
		bool	ascending
	)

inline

Constructs the BY column reference with the expression and the sort order given.

Parameters

expression	The expression of the column reference.
ascending	The sort order for the column. If this is set to true, the column will be used to sort the results of a query in ascending order.

Definition at line 57 of file SortColumn.cs.

58 : this(SqlExpression.Parse(expression), ascending) {

59 }

Deveel.Data.Sql.Expressions.SqlExpression.Parse

static SqlExpression Parse(string s)

Parses the given SQL string to an expression that can be evaluated.

Definition: SqlExpression.cs:219

Deveel.Data.Sql.Expressions.SqlExpression

Defines the base class for instances that represent SQL expression tree nodes.

Definition: SqlExpression.cs:35

Deveel.Data.Sql.SortColumn.SortColumn ( string expression )

inline

Constructs the BY column reference with the expression given and the ascending sort order.

Parameters

expression The expression of the column reference.

Definition at line 66 of file SortColumn.cs.

67 : this(expression, true) {

68 }

Member Function Documentation

object IPreparable. Deveel.Data.Sql.SortColumn.Prepare ( IExpressionPreparer preparer )

inlineprivate

Converts the underlying value of this instance into an object that can be evaluated by an expression.

Parameters

preparer The context used to prepare this object.

Returns: Returns an object that can be evaluated by an expression.

Implements Deveel.Data.Sql.Expressions.IPreparable.

Definition at line 81 of file SortColumn.cs.

                                                                  {
             var exp = Expression;
             if (exp != null) {
                 exp = exp.Prepare(preparer);
             }
 
             return new SortColumn(exp, Ascending);
         }

Property Documentation

bool Deveel.Data.Sql.SortColumn.Ascending

getprivate set

Gets a boolean value indicating whether we're sorting in ascending or descending order.

Definition at line 79 of file SortColumn.cs.

SqlExpression Deveel.Data.Sql.SortColumn.Expression

getset

Gets the expression used to order the result of a query.

Definition at line 73 of file SortColumn.cs.

The documentation for this class was generated from the following file:

/var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data.Sql/SortColumn.cs

Public Member Functions

Properties

Private Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Property Documentation