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How to use ObjectDB properly in spring boot application?

catch finally blocks in order to properly close connections. I want to refactore my application so that database operations are done in JpaRepositories or Dao classes with @Transactional methods (as described in https://spring.io/guides/gs/accessing-data-jpa/) I had a research on the web

Is there an update on running ObjectDB purely in-memory?

ObjectDB purely in-memory, without a any file on disk? Note that "file on RAM disk", which was proposed in the past, is not an option for the application I have in mind. It would need to be true in ... We had this as an unreleased feature for a while, and following your post it is now included in

Problems down-casting in WHERE clause

AND ((Derived2)b).val4 LIKE :search When I run my query in the ObjectDB explorer, I get Query Execution Error ... {         String val4;     } } It seems to be a bug, but we will need your help in reproducing ... example to throw the exception, even after adding in a few details. I have opened a direct support

Performance issue in a query due to internal calls visitRefs and visitKeyRefs

Hello, we have a question about a performance issue in a query. We executed a query on the following entity and there is only one entity in the database and we expects that the query is executed within 1 ms. SELECT v.sheetUID FROM TCVector But how you can see in the attached snapshot 'stacktrace

Stalling on "run File" in Netbeans when using -javaagent:lib/objectdb.jar

. To enable enhancement I use the following in the Project Properties dialog Run section under VM Options ... fine for a Netbeans Web Application (that runs in Glassfish as web application container). However I ... .jar is present in the VM Options, in which case the class begins to execute then simply "stalls

Query to search for common elements in two separate collections.

OF :someCollection Is something like this possible in the JPA spec? bensteele Ben Steele A possible ... for equality. The hash code of every stored collection should be stored in an indexed field, possibly in a new entity or embeddable class that would wrap the collection with its hash code. support

"where in" query

Is it possible to run a query selecting values that exist in a provided list? e.g. something like: SELECT u FROM User m WHERE u.username IN ('test_user','anotheruser') I've tried various ... below). The only similar examples I can find in the docs involve a join query - but my list isn't in the database

Missing (null) elements in eager loaded references

the issue in this case. support Support It happend yesterday after we installed an update and I was the only logged in user. So it beeing another Thread closing the EntityManager is not possible. It happend when I made an export, which happens all in one Thread. Is there an event, notification

Is it ok to put list or map of embeddable objects in entity ?

Hi, Is it ok to put list or map of embeddable objects in entity? I mean, for example : @Entity ... ? In the examples, there is only situation where there is one single instance of embeddable class in ... >()) on an entity that had some Class_B instances in bList? Will they be deleted correctly from database

Query in nested transaction returns detached entity if lazy-loaded

of the relevant work flow and fails at the assert in line 58: assertTrue(secondQueryResult.get(1).strValue ... will be available soon. support Support Your test case demonstrates a bug in retrieving new objects ... then we get another issues in our test suites. We worked on enhanced classes. We activated the entity listeners for pre

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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