6 | Selective merge/cascade of detatched entity activity that is too slow. The problem is with the cascading merge operation that becomes too heavy |
6 | Is it possible to remove parent/child entities without refresh?We have a big entity object tree in our project. If I use the entityManager.remove(childEntity) method to remove a child entity a entityManager.refresh(parentEntity) is necessary in order to have an updated parent/child object tree in memory. But entityManager.refresh is too slow for our project |
6 | Navigation to Collection Elements penalty, how slow is it and would you recommend something better ? Thanks geekox86 Mohannad AlAwad |
6 | Should I use ObjectDB and JDO? because I am storing objects to avoid apparent relative slowness of relational databases). I want |
6 | Should I be able to persist a JFrame (or gui components in general)? like this, so that I am not spending a long time (I'm slow) programming what I'll call "mapping the UI |
6 | JPA Configuration without persistance.xmlHi, I've been using Hibernate with JPA, and found it too slow, so am moving my project to use ObjectDB. My Jar is being held inside another application, so I don't want to have to rely on a persistance.xml file being in a particular place. When using Hibernate, I was able to do the following: org |
6 | IMK Stall with certain query? Is there anything i can do? Thanks. lo Hoel No such known issue. The query looks fine. It could be slow |
6 | Is it ok to put list or map of embeddable objects in entity ? be very efficient). I am not sure how ORM JPA implementations handle this. About the slow lazy loading |
6 | Connection performace after upgrade to objectdb 2 of PersistenceManagerFactory and PersistenceManager per PersistenceManagerFactory are slow, but this is normal |
1 | ObjectDB 2.8.6_01Added an option to slow backup (see feature request #2681). |
