About enhancement

issue

Sometimes the ObjectDB throws an internal expeption if a persist() was executed

[ObjectDB 2.6.6_08] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.8.0_51 (on Windows 7 6.1). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: java.lang.NullPointerException: null java.lang.NullPointerException at com.objectdb.o.OBM.bE(OBM.java:395) at com.objectdb.o.OBM.bE(OBM.java:269) at com.objectdb.jpa.EMImpl.persist(EMImpl.java:442) ... is just that we started our application without OEM enhancement on a machine without an ObjectDB license (no matching ...

 
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Activation Issue

Hi! We now reached the 10 class limit of ObjectDB. Our license is activated and if I run objectdb activation I get true back. When I start our webapp although I get the following error: #1 2014-10-22 13:07 Hi! We now reached the 10 class limit of ObjectDB. Our license is activated and if I run objectdb activat ...

 
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Mismatch client-server protocol prefix

Hello! We migrated one of our legacy webservices to Spring Boot/Spring MVC. Now i have a strange problem. At first the app runs perfectly for a couple of hours. After that it stops working and I get the following exception: #1 2015-06-17 16:02 Hello! We migrated one of our legacy webservices to Spring Boot/Spring MVC. Now i have a strange prob ...

 
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Mapped By Fetch is very Slow

Well ! I think i pointed out a HUGE performance issue with mapped-by attribute (yeah again :( ). Here is the test case : 1- Create 100 000 entities with for each 1 entity with @OneToOne(mappedBy attribute) 2- Retrieve only 10 000 for testing 3- Wait ... On my AMD FX 8350, it took 60s Now, go the MyEntity class and remove "mapped-by". You obtain 1 second max of query fetch. #1 2015-06-19 11:05 Well ! I think i pointed out a HUGE performance issue with mapped-by attribute (yeah again :( ). Here is ...

 
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Can I Disable the Creation of the "log" Directory?

These are questions asked in the context of the proposed architecture described in the forum thread titled, "Sample JDO Architecture for Follow Up Questions".   #1 2016-07-25 15:57 These are questions asked in the context of the proposed architecture described in the forum thread titled, "Samp ...

 
issue

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 get an exception if I: Bug Version: 2.3.0 Priority: Normal Status: Fixed Replies: 3 Type:  Bug ...

 
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Concerning coding style of the example in the posting instructions

(This forum item was spawned from discussions in a private helpdesk ticket.) I write with reference to the coding example in the posting instructions and many of your other examples posted in the forums. While I appreciate the recommended coding style as shown makes for convenient minimal examples and test cases,  I contest that it breaks the rules for JPA2 entities on at least 2 counts. Firstly, the posting instructions state:  ... your second point, properties can be used and when using enhancement by a Java Agent even must be used, since ObjectDB may fail to ...

 
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Connection is closed Caused by: java.io.EOFException

I am getting this exception on a regular basis, after a period of time of repeating the same code execution.  I don't understand why.  I restart the DB server and my code works again for another period of time until same exception is encountered again.  I cannot pin down a pattern e.g. after a certain period of time,  because the time  periods between exceptions are not regular, although frequent.  Any test case  I use will pass most of the time but will fail after an undetermined period. ... >   <entities > <enhancement agent = "false" reflection = "warning" /> ...

 
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Memory Leaks after COMMIT operation (checked on versions 2.6.5 & 2.6.6.b01)

During import big logs we are observed some memory leaks inside of ObjectDb, so, could you explain what we did incorrectly or investigate how to fix it ASAP. Source code which causing memory leaks: #1 2016-02-04 09:54 During import big logs we are observed some memory leaks inside of ObjectDb, so, could you explain what we did in ...

 
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Degrading performance overtime

hi, We have an application that uses embedded odb database. We have configured odb to start at 50meg chunks and grow at 50 megs a time. as the files become larger between 1 and 2 gigs we start to see considerable degrade in performance caused internal objectdb locking: ... >   <entities > <enhancement agent = "false" reflection = "warning" /> ...