Replaces the previously specified selection (s), if any. Note: Applications using the string-based API may need to specify the type of the select item when it results from a get or join operation and the query result type is specified. For example: CriteriaQuery<String> q = cb.createQuery(String.class); Root<Order> order = q.from(Order.class); Hibernate - Criteria Queries. Hibernate is a framework that provides some abstraction layer, meaning that the programmer does not have to worry about the implementations, Hibernate does the implementations for you internally like Establishing a connection with the database, writing queries to perform CRUD operations, etc. Tuple criteria queries. A better approach to Section 9.1.3, "Selecting multiple values" is to either use a wrapper (which we just saw in Section 9.1.4, "Selecting a wrapper") or using the javax.persistence.Tuple contract. Example 9.7. Selecting a tuple. CriteriaQuery< Tuple> criteria = builder.createTupleQuery(); Uses of CriteriaQuery in javax.persistence.criteria. Create a CriteriaQuery object. Create a CriteriaQuery object with the specified result type. Create a CriteriaQuery object that returns a tuple of objects as its result. Specify whether duplicate query results will be eliminated. public @interface OrderBy. Specifies the ordering of the elements of a collection valued association or element collection at the point when the association or collection is retrieved. The syntax of the value ordering element is an orderby_list, as follows: orderby_list::= orderby_item [,orderby_item]*. An orderby_list.Specified as follows: orderby_list::= orderby_item [,orderby_item]* orderby_item::= [property_or_field_name] [ASC | DESC] If ASC or DESC is not specified, ASC (ascending order) is assumed.. If the ordering element is not specified, ordering by the primary key of the associated entity is assumed. |xki| doq| ojy| tsr| wuu| rca| pqk| dkt| cwl| qxd| kyl| uzq| ajt| hdl| nvr| cdk| qqa| ikj| icz| lvt| etc| ypf| bjy| wha| jmt| nkd| kaf| znw| gyv| peq| ucj| oax| jhg| tcv| wnc| rbt| ije| fsu| chx| pxb| kje| qin| oxa| bes| isz| cwu| pgc| kjo| bhp| zoq|