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42

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

: objectdb.temp.no-detach NOT USED This problems only seems to occur in my large web application. I know ... application parallel to the large web application, but the problem does not happen in the smaller web ... operations (while "visiting" the loaded managed entity) to load and fetch desired values. In addition
41

Occasionally slow requests in load testing

, however there are quite a few "spikes" in the performance where we are getting a lot of very slow ... we can see that most of the requests get stuck in one of 2 places: com.objectdb.o.PGC:w: line number ... threads in the db server process and it is configured for 400. The server it is running on looks
41

Explorer in 2.3

First, the new Explorer in ObjectDB is fantastic! This is exactly what we've needed - an easy way ... . Then allow import of that file into another database. 2. Lazy loading of data, especially in table view ... movement of the scrollbar also causes large pauses (> 30 seconds in some cases). I am using remote
41

Performance in large transactions

Hello, we have a performance problem when we use a large transaction. Let's do exactly the same in several transactions the ObjectDB works much faster. In our use case, we create many new entities ... iteration. (In the query, we search for an item of type Entity2. However, there is only one entity
41

UserException: Invalid configuration in 'internal' - Check permissions

. With such information I have tried to create an entityManager, in each slave, as follows ... .UserException: Invalid configuration in 'internal' - Check permissions.: Is there any way to change ... ) at com.objectdb.jpa.Provider.createEntityManagerFactory(Provider.java:57) Exception in thread
8

Eclipse Public License - v 1.0

OF THIS AGREEMENT. 1. DEFINITIONS "Contribution" means: a) in the case of the initial Contributor, the initial code and documentation distributed under this Agreement, and b) in the case of each subsequent ... which: (i) are separate modules of software distributed in conjunction with the Program
8

Explorer bug ? Objects seem to be missing from database in Class view, but are present as references

.Source [null](TEST: a 2nd source in (1st project)) INFO: RequestBean []: Persisted: com.greensoft.entity.Source [4](TEST: a 2nd source in (1st project)) INFO: RequestBean []: Created: com.greensoft.entity.Source [null](TEST: a 3rd source (in 2nd project)) INFO: RequestBean []: Persisted: com.greensoft
8

Index Definition

Querying without indexes requires iteration over entity objects in the database one by ... . Index management introduces overhead in terms of maintenance time and storage space, so deciding ... ; // unique } @Unique represents a unique index that prevents duplicate values in the indexed field
8

Once served to JSF page via @EJB query bean, many list fields are null (but same query ok after fresh persist in @PostConstruct)

, the inability to robustly query relationship fields in a web application renders the ObjectDB ... showing the query result in indexTest.xhtml. The problems is illustrated by running the attached JavaEE ... via a querying @EJB gives many fields null (and not even empty, I mean truly null). In the following
8

JPA Persistable Types

The term persistable types refers to data types that can be used for storing data in the database ... can be stored in the database directly. Other persistable types can be embedded in entity classes as fields. In addition, only instances of entity classes preserve identity and are stored

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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