com.triactive.jdo.store.sql.expr
Class OrderingSpec

java.lang.Object
  com.triactive.jdo.store.sql.expr.OrderingSpec

public class OrderingSpec

extends java.lang.Object

A component of an SQL ORDER BY clause.

This is just a data structure pairing an SqlExpression and a boolean. A list of these is used by QueryStatement to construct an SQL ORDER BY clause.

Author:

Mike Martin

See Also:

QueryStatement.setOrdering(java.util.List)

Field Summary

SqlExpression	expression The expression value by which to order.
boolean	isDescending Descending order if true, ascending if false.

Constructor Summary

OrderingSpec(SqlExpression expression, boolean isDescending)
Constructs an ordering spec.

Methods inherited from class java.lang.Object

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

Field Detail

expression

public final SqlExpression expression

The expression value by which to order.

isDescending

public final boolean isDescending

Descending order if true, ascending if false.

Constructor Detail

OrderingSpec

public OrderingSpec(SqlExpression expression,
                    boolean isDescending)

Constructs an ordering spec.

Parameters:

expression - the expression value by which to order

isDescending - descending order if true, ascending if false