About activation code

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JDO Doc
3

javax.jdo.PersistenceManager

if a transaction is not active. If a datastore transaction is active, this method verifies ... if flush were called, but it is not required to do so. If an optimistic transaction is active ... the persistent instance from the data store. This method must be called in an active transaction
JDO Doc
3

javax.jdo.FetchPlan

javax.jdo Interface FetchPlan Fetch groups are activated using methods on this interface ... the fetch group to the set of active fetch groups. Add the fetch group to the set of active fetch groups ... all active groups leaving no active fetch group. Remove all active groups leaving no active fetch
JDO Doc
3

javax.jdo.Transaction

environment, or if the transaction is already active. Since: JDO 1.0 See Also: setOptimistic getOptimistic ... is not active. Since: JDO 1.0 String getIsolationLevel() Get the value for transaction isolation level ... getNontransactionalRead() If true, allows persistent instances to be read without a transaction active
FAQ
3

What are the main benefits of using ObjectDB?

. The ability to store ordinary objects in the database directly can simplify the code significantly. Less (and more simple) code to write, debug and test, as well as a much easier learning curve leads
Manual
3

JPA Query API

with an EntityManager (represented by em in the following code snippets), which serves as a factory ... > q2 = em.createQuery("SELECT c FROM Country c", Country.class); In the above code
Tutorial
3

Step 3: Add a Context Listener Class

the new listener class. Now replace the content of the new source file with the following code: package ... "); emf.close(); } } The code above: Invokes the Enhancer to enhance the entity class
Tutorial
3

Step 3: Add a Context Listener Class

of the new source file with the following code: package guest; import javax.persistence.*; import ... )e.getServletContext().getAttribute("emf"); emf.close(); } } The code
Tutorial
3

Step 3: Add a Main Class

In this step we will add code to the Main class (that was generated with the project) in order to store Point objects in the database and then retrieve them from the database. Use copy and paste ... the database. Finally it closes the database. A detailed explanation of the code is provided in the Quick
Tutorial
3

Step 3: Add a Main Class

In this step we will add a main class to the project with code that will store Point objects in the database and then retrieve them from the database: Open the [New Java Class] dialog box by right ... . A detailed explanation of the code is provided in the Quick Tour chapter of the ObjectDB Manual
JDO Doc
3

javax.jdo.PersistenceManagerFactory

addFetchGroups( FetchGroup... groups) Add the FetchGroups to the set of active fetch groups. Add the FetchGroups to the set of active fetch groups. FetchGroups are made unmodifiable before being added ... to see that all PersistenceManager instances obtained from this PersistenceManagerFactory have no active