Home » JPA » Queries » Selection and Results » Order
75 words

javax.persistence.criteria.Order - JPA interface

javax.persistence.criteria
Interface Order

An object that defines an ordering over the query results.
Since:
JPA 2.0
Learn how to use JPA Criteria API's Order in Chapter 4 of the ObjectDB/JPA manual.
Expression<?> getExpression()
Return the expression that is used for ordering.
Return the expression that is used for ordering.
Returns:
expression used for ordering
Since:
JPA 2.0
boolean isAscending()
Whether ascending ordering is in effect.
Whether ascending ordering is in effect.
Returns:
boolean indicating whether ordering is ascending
Since:
JPA 2.0
Order reverse()
Switch the ordering.
Switch the ordering.
Returns:
a new Order instance with the reversed ordering
Since:
JPA 2.0
This documentation page is derived (with some adjustments) from the open source JPA 2 RI (EclipseLink)
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
Object Relational Mapping (ORM) JPA 2 providers include Hibernate, EclipseLink, TopLink, OpenJPA and DataNucleus.
Object DB is not an ORM JPA implementation but an Object Database for Java with built in JPA 2 support.