org.h2.command.dml

类 SelectOrderBy

java.lang.Object

org.h2.command.dml.SelectOrderBy

public class SelectOrderBy
extends Object

Describes one element of the ORDER BY clause of a query.

字段概要

字段

限定符和类型	字段和说明
Expression	columnIndexExpr The column index expression.
boolean	descending If the column should be sorted descending.
Expression	expression The order by expression.
boolean	nullsFirst If NULL should be appear first.
boolean	nullsLast If NULL should be appear at the end.

构造器概要

构造器

构造器和说明
SelectOrderBy()

方法概要

限定符和类型	方法和说明
String	getSQL()

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

expression

public Expression expression

The order by expression.

columnIndexExpr

public Expression columnIndexExpr

The column index expression. This can be a column index number (1 meaning the first column of the select list) or a parameter (the parameter is a number representing the column index number).

descending

public boolean descending

If the column should be sorted descending.

nullsFirst

public boolean nullsFirst

If NULL should be appear first.

nullsLast

public boolean nullsLast

If NULL should be appear at the end.

构造器详细资料

SelectOrderBy

public SelectOrderBy()

方法详细资料

getSQL

public String getSQL()