About join

forum_thread

Database size is much larger than expected (x2)

I store images into objectdb. The schema is : <URI>::=(<sUrl>, <cMark>, <iSize>, <baBody>, <id>) <sUrl>::=String <cMark>::=char <iSize>::=int <baBody>::=byte[] <id>::=@ID So simple a class will fail after 155,648 insertions with -Xmx1432m, #1 2011-08-18 02:10 I store images into objectdb. The schema is : <URI> ::= ( <sUrl>, <cMark&g ...

 
release

2.5.4

... and maps of invalid types. Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated the PDF manual. ...

 
forum_thread

@OneToMany(fetch = FetchType.LAZY) list is always null

Hello. @OneToMany(fetch = FetchType.LAZY) doesn't work when using EJB or something else related to J2EE. parent.getChildren() returns null. Here is a simple example: Bean: #1 2014-06-05 20:19 Hello. @OneToMany(fetch = FetchType.LAZY) doesn't work when using EJB or something else related to J2 ...

 
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Failed to commit transaction: Attempt to commit a rollback only transaction

Anyone know what this means?? Suddenly cropped up.   Failed to commit transaction: Attempt to commit a rollback only transaction (error 613) at com.objectdb.jpa.EMImpl.commit(EMImpl.java:271) at javax.jdo.Transaction$commit.call(Unknown Source) #1 2011-05-24 22:22 Anyone know what this means?? Suddenly cropped up. Failed to commit transaction: Attempt to commit ...

 
issue

Unexpected error when loading all entity instance

Hi, when going through all entity instance to find orphaned entries we get the exception: Bug Version: 2.7.0 Priority: Critical Status: Fixed Replies: 19 Type:  Bug ...

 
forum_thread

Activated ObjectDB still throws "Too many persistable types"

I have upgraded from 2.3.7 to 2.4.4 and now my activation won't work, throwing the dreaded com.objectdb.o.UserException: Too many persistable types (>10) - exceeds evaluation limit I have already reactivated and checked that my objectdb.conf is correctly used (by inserting random chars at the beginning of the file, which lead to an error). Yet I still get the error thrown. Nothing in my configuration changed except the version. What could possibly be the problem with that? #1 2012-10-29 14:43 I have upgraded from 2.3.7 to 2.4.4 and now my activation won't work, throwing the dreaded com. objec ...

 
release

2.5.3

... and maps of invalid types. Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated the PDF manual. ...

 
forum_thread

Check for index existence ?

Hello, Is there a simple way to check if indexes specified in entities are well taken into account by ObjectDb ? Regards, Xirt #1 2016-08-06 16:09 Hello, Is there a simple way to check if indexes specified in entities are well taken into account by Obj ...

 
forum_thread

How to change properties in urls2.xml?

Hello, I am using objectdb in an embedded case with network private access to each database. I see it exists a file name "urls2.xml". <url><main>/var/lib/tomcat7/db/myDb.odb;user=admin;password=admin</main><alt>objectdb://127.0.0.1:38059/;user=$code;password=a2e54ea3-d889-41a7-953c-dabc42877742</alt></url> This file is autogenerated by objectdb. And it describes the locals databases url and their port / user / password properties. #1 2013-09-09 15:52 Hello, I am using objectdb in an embedded case with network private access to each database. I see it ...

 
forum_thread

Unexpected internal exception during set field of an Embeddable to null

Hello, we get an Unexpected internal exception and have no idea what goes wrong. We can reproduce (mostly) the error in a very big use case. In the big use case and we create and persist millions of SignalValueImpl objects (Embeddables). Partly as in the stack trace an Embeddable contain another Embeddable. It seems like that we can't reproduce the problem in smaller use cases with less objects. Stack trace: #1 2016-06-24 08:36 Hello, we get an Unexpected internal exception and have no idea what goes wrong. We can reproduce ...