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9

TimeSeries and ObjectDB

Hi, I am using ObjectDB for storing TimeSeries (large ones) - when I get new points to add ... , then add the new points, and then commit the whole timeserie again. I looked at Update queries ... ) - there is no overhead of having each TimeSerie point - in a different entity? The reason is because the parent
9

How to define database structure and insert some initial objects from scratch

=             Persistence.createEntityManagerFactory("$objectdb/db/points.odb");         EntityManager em = emf.createEntityManager();         // Store 1000 Point objects in the database:         em.getTransaction().begin();         for (int i = 0; i < 1000; i++) {             Point p = new Point(i, i
9

BIRT plugin: Trouble with Client/Server connection

I am having trouble setting up the birt points.odb sample with a client/server connection. I can connect to points.odb with the explorer. I added a "Data Source" that works fine with local file ... ://localhost:6136/points.odb;user=admin;password=admin using objectdb-jee.jar - (manifest.mf) Bundle-Version
9

Saving custom list which implements java.util.List fails

) and encountered the following problem: I took the Point-example from the tutorial and added a list ... below. @Entity public class Point implements Serializable {     ...     private List list ... .asList("not", "ArrayList"); } @Entity public class Point implements Serializable
9

Should I be able to persist a JFrame (or gui components in general)?

, and modeled after your Point class from your tutorial. This whole process worked and end result ... iterators with no concept of current record--but I digress--I got them working anyway). 4. The point ... to reply at this point. I have some more experimenting to do. milesdyson214 David Tyler Last update
9

Pre-detach loading: retrieval by navigation not working in if statement

application (as I will demonstrate below), so there is no point making that available (yet). I have been unable to find the point of difference. So I will try first just showing selected portions of code ... test app). I have tried in vain to find any point of difference between the real web app and the mini
8

Missing Data on Retrieval (0, null values)

-Keys do not match. I can't get the point - what am i doing wrong? emf = Persistence ... class if the class is enhanced). support Support Many thanks - that's the point. That are my first ... standard (POJO) classes to persist data. support Support That is the Point: "you will still get an object
8

Great product - needs better marketing - more popularity

points. (JPA and JDO APIs versus an elegant proprietary API is a negative sales point to me.) I ... realistic. Supporting the JPA and JDO APIs is an important selling point for customers
8

Modifying something with Explorer -> app JPQL with Enum doesn't work anymore

anyway, because that's the point of using them as strings. It seems that they work as @Ordinal if that error happens ... . That's the main point. That's a real pain. In the first app I encountered this I had to remove @Enumerated ... me state again the 3 bug scenarios, then I'll point the solution: Immediately after a new number
2

query.getResultList() throws ClassCastException

I modified the example code to include an index on the Point class like so: @Index(members={"x","y"}) Then when I run the following query: TypedQuery<Point> query = em.createQuery("SELECT p FROM Point p where p.x <= :x and p.y >= :y", Point.class); I get the exception at the end. I do not

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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