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The configuration element lists the users that are allowed to access the ObjectDB Server ... more subelements indicating which paths under the server data directory the user is allowed to access ... to access a directory always includes the permission to access the whole tree of subdirectories

. There is one case, however, where enhancement is required. Non persistable classes that access directly (not ... (and actually required by JPA but not enforced by ObjectDB) to avoid accessing persistent fields ... the Java Enhancer Agent. Therefore, when using this technique persistent fields may only be accessed

these databases accessible to client applications in other processes including ones on other remote ... are: The ability to access and use databases from different processes simultaneously. The ability to access ... , if an ObjectDB database is accessed directly only by a web application, it should be embedded in

may be accessed using different paths in the tree and therefore may be represented by more than one node ... client server mode, it can be accessed simultaneously by other applications. If the database is modified ... for easier future access - first select it in a viewer window and then select the Tools Bookmark

should always return void and take no arguments. They can have any name and any access level ( public , protected ... methods and should not access any other entity objects. If a callback method throws an exception

this case, the master database can be accessed  ordinarily as follows: EntityManagerFactory emf ... =a"); A slightly different URL is required in order to access the slave database: EntityManagerFactory emf

, but to make your application JDO portable these objects are accessed through the standard JDO interfaces ... ). javax.jdo.option.ConnectionURL Specifies a database location. To access a database file directly ... client server mode should be used to access that database. To use embedded mode, an absolute path

class. Usually this is used for accessing fields of the candidate object, but it can also be used ...  = 18" are also valid filter expressions. Field accessing is not limited to the this reference. Persistent fields of any entity that represents a persistent object can be accessed

(running on the same machine or on different machines) can safely access the database simultaneously ... . The database file is accessed directly by the application's process, using JDO and ObjectDB jar files ... , however, is useful for accessing remote databases and for database access of several processes simultaneously

that the same database object might be accessed using different paths in the tree ... is open in the Explorer using client server mode, it can be accessed simultaneously by ... only when accessing a local database using embedded mode. 9.4  Tools and Threads The "Thread" tabbed