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Hibernate developmental JSR 317 (Java Persistence API 2.0) contracts. Used to allow incremental implementation of features on the way to full JPA 2.0 support.

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// $Id: Order.java 17221 2009-07-30 21:30:58Z [email protected] $
// EJB3 Specification Copyright 2004-2009 Sun Microsystems, Inc.
package javax.persistence.criteria;

/**
 * An object that defines an ordering over the query results.
 */
public interface Order {

   /**
    * Switch the ordering.
    * @return a new Order instance with the reversed ordering
    */
    Order reverse();

   /**
    * Whether ascending ordering is in effect.
    * @return boolean indicating whether ordering is ascending
    */
    boolean isAscending();

   /**
    * Return the expression that is used for ordering.
    * @return expression used for ordering
    */
   Expression getExpression();
}