javax.persistence.criteria

Interface Order

All Known Implementing Classes:

OrderImpl

public interface Order

An object that defines an ordering over the query results.

Since:

Java Persistence 2.0

Method Summary

Modifier and Type	Method and Description
Expression<?>	getExpression() Return the expression that is used for ordering.
boolean	isAscending() Whether ascending ordering is in effect.
Order	reverse() Switch the ordering.

Method Detail

reverse

Order reverse()

Switch the ordering.

Returns:

a new Order instance with the reversed ordering

isAscending

boolean isAscending()

Whether ascending ordering is in effect.

Returns:

boolean indicating whether ordering is ascending

getExpression

Expression<?> getExpression()

Return the expression that is used for ordering.

Returns:

expression used for ordering