About property

release

2.2.6

Release date: 2011-06-02 Download (5.13 MB) Binary:  objectdb-2.2.6.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

Post-compilation enhancement vs Automatic Run-time enhancement

We are getting massively different results on field loading between explicit post-compile enhancement and automatic run-time enhancement. Testing exactly where and when the results are different for our demo web app is a very time consuming task, and very difficult, it means testing literally 100s of user interfaces (noting we get different results OUTSIDE THE JAVA SERVER FACES BACKING BEAN LAYER depending on the enhancement stragegy). Can you please explain how this could possibly be so ? ... enhanced code (using the objectdb.code.output system property) we will be able to see the difference. ...

 
issue

TYE NullPointerException

I've been seeing the following stack trace in a couple of tests today: ... been seeing is related. I have a class with a collection property, this is defined as Collection<String> and is backed by ...

 
forum_thread

How the sort order (in queries) works for non english letters?

We are considering using ObjectDB in  project where target audience are czech speaking people (we are Czech company). How the sort order works for international (for us 'czech') letters? Does the ordering respects the national requirements? Thank you for clarification ... ... just use one collation sequence anyhow. Maybe some property one could set when creating a new ObjectDB datafile? ...

 
issue

Use temporary files to enable very large transactions

We have transactions in which many objects are created. These objects are no longer needed in the current transaction after creation. Unfortunately, we will receive an OutOfMemory exception because the objects are kept in the first level cache of ObjectDB. In the forum thread http://www.objectdb.com/database/forum/921 on post #4 you wrote, that ObjectDB should support very large transactions in further version. Can you implement it that ObjectDB used temporary files? ... files in transaction flush/commit set a new system property: System. setProperty ( "objectdb.temp.page-file" ... Still, this should be enabled by setting a system property (on the server side in client-server mode), as described on #10 ...

 
forum_thread

Attempt to open a non existing file '/tmp/objectdb_xxxx/SortQueryItr_6.mrg'

Hi, I came across an error - but i have not been able to create a simple reproducible case - the error does not happen often and does not happen always -  Let me explain: 1/ I run 5 java applications at the same time on one machine - each application is using an ODB file (each one is using a different one). Basically each application does a sorted query ( qqq = em.createQuery("SELECT bk FROM OBN bk ORDER BY bk.time ASC", OBN); ) 2/ after a little while - some of the applications throws this error message: #1 2015-02-11 03:52 Hi, I came across an error - but i have not been able to create a simple reproducible case - the error do ...

 
issue

Server NPE

I'm getting the following NPE when attempting to persist an object to a server based database: ... writing to the db, one reading. I had added an index to a property of the Entity object saved in the database but had mis-deployed this ...

 
issue

Blocked by find

I have a container object which wraps an objectdb database. There is a "putIfAbsent(String id, Object obj)" method which is synchronized and attempts to load an object by id using the EntityManager "find" method. If nothing is returned from the db the passed object is persisted to the db. I have 5 threads which use this method. In a run today one of the threads seems to have got stuck somewhere in the find. The thread dump looks like: ... the new temporary  "objectdb.page.circle" system property set to "true" - a page circle will be detected as soon as it is ... times (see attached thread dump for example). The system property doesnt seem to have produced any extra logging though - I've ...

 
forum_thread

Performance issues on aggregate query

we are using this aggregate query to collect some data: #1 2016-11-09 07:49 we are using this aggregate query to collect some data: select p3.doubleValue,c1.classIdentifier,c1.objec ...

 
release

2.2.5

Release date: 2011-05-20 Download (5.1 MB) Binary:  objectdb-2.2.5.zip You should start by following a  tutorial or reading the manual ...