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of a collection valued association or element collection at the point when the association or ... _item]* orderby_item::= [property_or_field_name] [ASC | DESC] If ASC or DESC is not specified, ASC (ascending order) is assumed.

, MOD, NEW, NOT, NULL, NULLIF, OBJECT, OF, OR, ORDER, OUTER, POSITION, SELECT, SET, SIZE, SOME, SQRT

for building date and time expressions that represent the current date and/or time:

] EMPTY operator checks whether a specified collection is empty or not. For example:

] window) and selecting New > Folder (or New > Other... >

This tutorial demonstrates how to create and run a full Java Spring MVC (Model View Controller) web application using Tomcat (or GlassFish), JPA, ObjectDB and Maven. The demo web application manages a basic guestbook page. Every visitor can sign the guestbook by filling

the new run configuration at the toolbar and click the green run icon (or Shift+F10).

;Open With > Text Editor or by double click and then moving to the Source

JDOImplHelper loaded by the same or an ancestor class loader as ... >PersistenceCapable superclass for this class, or null the new instance, or null

.annotations.Join">generateForeignKey Generate or assume a foreign key constraint exists on the column or columns associated with this join. Generate or assume a foreign