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How can I enable serialization for objectdb or an entity manager if I do not use a configuration file: System.setProperty("objectdb.???", /* ??? */); OR this.entityManager.setProperty(/* ??? */, /* ??? */); itsme Martin Petzold It has to be enabled in the objectdb.conf file as shown on this manual

Hi, I have the following test class that is failing when the enhancer is enabled , resulting in ... ; for (MyEntity2 myEntity : em.createQuery(" select e from MyEntity2 e", MyEntity2.class).getResultList()) {   ... myEntity2 : em.createQuery(" select from MyEntity2 e where e.values.get('key1').value = 'value1

Hello, Can I enable and disable the auto schema update? In some cases if multiple applications are using same database and mistakenly one of application uses entity of older version build(my specified entity libs) then the whole db is being corrupted and db need to be restart.  Expected

internally runs SELECT NEW ... queries. For example: SELECT NEW com.arunta.base.db.FileNameDTO(r.id, r.fileName) FROM RecordingMetaData AS r WHERE ... A remote RMI client runs SELECT (but not SELECT ... is that once we UPDATE a record from the client (via the RMI interface), all SELECT NEW ... queries

The Query interface defines two methods for running SELECT queries: Query.getSingleResult ... objects in return: TypedQuery query = em. createQuery (" SELECT c FROM Country c", Country.class); List ... ) type: Query query = em. createQuery (" SELECT c FROM Country c"); List results = query

Developers extension. To install it: Open the [Install] dialog box by selecting Help Install New Software ... and press ENTER. Select the ObjectDB Birt/ODA feature. Complete the installation by clicking Next twice ... ] window and selecting   New Data Source . Select ObjectDB Data Source from the list of available

. This enables us to repeatedly commit on the second database and in case of a fault we can still recover ... . support Support A build with ability to use temporary files is available now (2.6.2_06). To enable ... and preferred. support Support We test to enable temporary files in transaction flush/commit

: @NamedQuery ( name ="Country.findAll", query =" SELECT c FROM Country c") The  @NamedQuery annotation ... . But since the scope of named queries is the entire persistence unit, names should be selected ... ", query =" SELECT c FROM Country c") public class Country { ... } Attaching multiple named queries

identification variables and SELECT result variables. Parameters - when instances of these classes ... : SELECT c.name, c.capital.name FROM Country c The c  identification variable is used ... : SELECT COUNT(e) FROM Object e WHERE TYPE(e) Country Binding an identification variable ( e

and range queries: SELECT p FROM Point p WHERE p.x = 100 SELECT p FROM Point p WHERE p.x BETWEEN 50 AND 80 SELECT p FROM Point p WHERE p.x = 50 AND p.x = 10 But this time a full index scan is required ... for sorting results and for projection: SELECT MIN(p.x) FROM Point p WHERE p.x

DELETE queries provide an alternative way for deleting entity objects. Unlike SELECT queries ... . Selective Deletion The structure of DELETE queries is very simple relative to the structure of SELECT queries. DELETE queries cannot include multiple variables and JOIN, and cannot include the GROUP

that enables transparent use of old entity objects after schema change. When an entity object

should be stateless and should have a public no-arg constructor (or no constructor at all) to enable

. If global cascade persist is enabled all the reachable entity objects that are not managed

on the data directory, its subdirectories and database files, to enable operations of the server process

should only be enabled for fields that hold private non shared dependent objects. Orphan removal can also be set

an argument a name of a persistence unit . As an extension, ObjectDB enables specifying a database URL (or

annotation enables configuring cascade and fetch policy, using the following enum types: Additional

The JPA Metamodel API, which is introduced in JPA 2.0, enables examining the classes, fields and properties of the persistent object model, similarly to the Java reflection API. The main interface of the JPA Metamodel API is: Types (mainly classes) and attributes (persistent field and properties

a Site License OEM License ObjectDB 2.x OEM license enables distribution of ObjectDB runtime bundled in

that doesn't contain  'English' . ObjectDB enables as an extension to standard JPQL to use

has to be enabled , but no other preparations or settings are required. Setting Slave Databases Setting slave

You with services available through the Website and to enable You to use some of its features. They help

provide an alternative way of updating entity objects. Unlike SELECT queries, which are used ... - the executeUpdate method returns the number of objects that have been modified by the query. Selective Update ... , which is essential for updating selected entity objects, is supported. For example, the following

It is getting more and more frustrating :( We've introduced distinct select instead of regular selection in our code (no changes else) and suddenly receive invalid identifiers in queries exceptions ... ) multiple times for different selections in the same query!! so after debugging the query returns

for both Query and TypedQuery : Query q1 = em. createQuery (" SELECT c FROM Country c"); TypedQuery q2 = em. createQuery (" SELECT c FROM Country c", Country.class); In the above code, the same JPQL query

: Select File Import... Maven Existing Maven Projects and click Next . Select the points-console directory as Root Directory and press ENTER . Select the project and click  Finish . Run the project in Eclipse: Right click the project node and select Run As Java Application . Select Main - point and click OK .

selecting Help Install New Software... In the [Work with] field enter the BIRT update site url. http ... /update-site/4.6  (Eclipse Neon, Oxygen) and press ENTER. Click the Select All button to select ... ] dialog box by selecting Help Install New Software... In the [Work with] field enter the ObjectDB

.g. by using File New Project... Select Java Web Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and click Next . Select Apache Tomcat 6 as the Server. Note ... and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory of the ObjectDB

] dialog box, e.g. by using File New Project... Select Java Web Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and click Next . Select GlassFish Server 3 (or above)  ... ] window and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory

) and selecting   New Class . Enter  guest as the package name - use  exactly that case ... node (in the [Project Explorer] window) and selecting New Folder (or  New Other... General Folder and clicking Next ). Select the project src folder as a parent folder, enter META-INF as a new

the project node (in the [Package Explorer] window), select   New Source Folder ... right clicking the new source directory node (in the [Package Explorer] window) and selecting   ... the [Project Explorer]) and select   New Folder. The parent folder should be resources. Enter META

NetBeans: Select File Open Project... . Select the points-console directory and click Open Project . Run the project in NetBeans: Select Run Run Main Project... (or F6 ). Click Select Main Class .

IntelliJ IDEA: Select File Open Project... . Select the points-console directory and click Open Project . Run the project in IntelliJ IDEA: Select Run Run Main Project... (or F6 ). Click Select Main Class .

Eclipse: Select   File Import... Maven Existing Maven Projects and click  Next . Select the  guestbook-jee6 directory as Root Directory and press  ENTER . Select the project and click  Finish . Run the project in Eclipse: Right click the project node and select   Run As Run

the project zip file: Spring MVC JPA - Maven Project (8KB) Open the Maven project in Eclipse: Select   File Import... Maven Existing Maven Projects and click  Next . Select the  guestbook-spring directory as Root Directory and press  ENTER . Select the project and click  Finish

and extract the project zip file: JPA Web App - Maven Project (6KB) Open the Maven project in Eclipse: Select   File Import... Maven Existing Maven Projects and click  Next . Select the  guestbook-web directory as Root Directory and press  ENTER . Select the project and click  Finish

We start by creating a new NetBeans Project: Open the [New Project] dialog box, e.g. by using File New Project... Select Java Java Application and click Next . Choose a Project Name (e.g. Tutorial ... ] window and select Add Jar/Folder... Select the objectdb.jar file from the bin subdirectory

project in NetBeans: Select   File Open Project... . Select the  guestbook-jee6 directory and click  Open Project . Run the project: Select   Run Run Main Project... (or  F6

: Select   File Open Project... . Select the  guestbook-spring directory and click  Open Project . Run the project: Select   Run Run Main Project... (or  F6 ). Choose or define

: Select   File Open Project... . Select the  guestbook-web directory and click  Open Project . Run the project: Select Run Run Main Project... (or F6 ). Choose or define the server and click

and selecting New Data Set . Select the data source that was created in the previous step (e.g. ObjectDB ... value in a specified range: SELECT p.x as x, p.y as y FROM Point p WHERE p.x BETWEEN :low AND :high Use

In this step we will add a simple chart to the report: Open the [New Chart] dialog box by dragging a  Chart from the [Palette] window and dropping it on the report design (.rptdesign) layout. In the [ Select Chart Type] tab select Tube as the chart type and click Next . In the [ Select Data

Project] dialog box: Select Java Project and click Next . Choose a Project Name (e.g. Tutorial ) and click Next . In the Libraries tab, click Add External JARs... and select the objectdb.jar file from

We start by creating a new Eclipse Dynamic Web Project: Open the [New Project] dialog box, e.g. by using File New Project... Select Web Dynamic Web Project and click Next . Choose a Project Name (e.g. Guestbook ). Select Apache Tomcat v6.0 as the Target runtime. Note: You may have to add Tomcat 6

File] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New Other... Select Web Web Application Listener and click Next . Enter GuestListener as the class name

In this step we will add a servlet to manage guestbook web requests: Open the [New Servlet] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New Servlet ... .getTransaction().commit(); } // Display the list of guests: List guestList = em.createQuery( " SELECT g FROM

server connection to enable user identification and permission checking. Username and password ... a JDOUserException (a subclass of JDOException ) to be thrown. A true value enables modifying

file does not exist in that path, a new database file is created automatically. To enable updating

with every ObjectDB product, is a sophisticated tool that enables browsing, querying, editing and the construction