About JBoss AS

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Manual
2

General Settings and Logging

data, such as query results that contain millions of objects. The element specifies temporary ... . The $temp prefix can be used to represent the system default temporary path, as demonstrated ... sockets become obsolete as a result of inactivity. The value is the timeout in seconds, where 0
Manual
2

Working with JPA Entity Objects [2011-04-18]

at it is that the persistence context also functions as a local cache for a given EntityManager. ObjectDB also manages a level 2 shared cache for the EntityManagerFactory as well as other caches as explained in ... ); The persistence context can be cleared by using the clear method, as so: em.clear
Manual
2

Working with JPA Entity Objects

at it is that the persistence context also functions as a local cache for a given EntityManager. ObjectDB also manages a level 2 shared cache for the EntityManagerFactory as well as other caches as explained in ... ); The persistence context can be cleared by using the clear method, as so: em.clear
FAQ
2

What are the main benefits of using ObjectDB?

. Less (and more simple) code to write, debug and test, as well as a much easier learning curve leads ... fields can be stored by ObjectDB simply as part of the containing object. Relational databases lack ... multiple values (even for a simple data structure such as a collection of strings). In addition
Tutorial
2

Step 3: Define a Spring DAO Component

) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right ... > Java Class.... Enter GuestDao as the class name - use exactly that case sensitive class name ... the controller, as shown in the next step. Prepares an EntityManager automatically and injects it into the em
JPA Doc
2

JPA Queries

concatenating JPQL strings into a valid complete JPQL query. JPA 2 introduced the JPA Criteria Query API, as ... : As noted above, eventually every criteria query is managed by an ordinary TypedQuery instance ... queries as well as of criteria query elements. It can be obtained either by the EntityManagerFactory's
Manual
2

UPDATE SET Queries in JPA/JPQL

Existing entity objects can be updated, as explained in chapter 2, by: Retrieving the entity ... a separate EntityManager for UPDATE queries. As with any operation that modifies the database, UPDATE ... Country c SET c.population = c.population * 11 / 10 UPDATE Country AS c SET c.population = c.population
Tutorial
2

Step 4: Add a Controller Class

New > Java Class... Enter GuestController as the class name - use exactly that case sensitive class ... ModelAndView("guest.jsp", "guestDao", guestDao); } } The GuestController class is defined as ... ("guest.jsp") and passes the GuestDao component to the JSP as a request attribute (whose name
Manual
2

UPDATE SET Queries in JPA/JPQL [2011-11-22]

Existing entity objects can be updated, as explained in chapter 2, by: Retrieving the entity ... a separate EntityManager for UPDATE queries. As with any operation that modifies the database, UPDATE ... Country c SET c.population = c.population * 11 / 10 UPDATE Country AS c SET c.population = c.population
Manual
2

Deleting JPA Entity Objects

method or implicitly as a result of a cascade operation. Explicit Remove In order to delete an object ... is automatically cascaded to the referenced Address instance, which is then automatically removed as ... , such as when setting the address field to null or to another Address object. If orphanRemoval=true