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[ODB1] Chapter 8 - ObjectDB Server

An ObjectDB server can manage one or more databases. Databases that are managed by a server can be accessed by multiple processes simultaneously. In addition, the server supports accessing these databases from remote machines by TCP/IP. More details about client server mode vs. embedded database mode are discussed in Section 1.2. An ObjectDB server can manage one or more databases. Databases that are managed by a server can be accessed by multiple processes simultaneously. In addition, the server supports accessing these databases from remote machines by TCP/IP. More details abo ...

 
issue

Error 990 when querying a class with persistence-capable-superclass

[ObjectDB 2.4.7_07] Unexpected exception (Error 990) Generated by Java HotSpot(TM) Server VM 1.7.0_10 (on Linux 3.2.0-39-generic-pae). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: null com.objectdb.o.InternalException at com.objectdb.o.InternalException.f(InternalException.java:236) at com.objectdb.o.STA.K(STA.java:339) at com.objectdb.o.ENT.D(ENT.java:533) at com.objectdb.o.ENT.M(ENT.java:681) at com.objectdb.o.LDR.F(LDR.java:589) at com.objectdb.o.LDR.E(LDR.java:466) Bug Version: 2.5.4 Priority: Normal Status: Active Replies: 8 Type:  Bug ...

 
forum_thread

Master database switching to read-only mode, possibly caused by slave failure

We had a database failure causing a production outage. Both master and slave databases have failed, slave became unresponsive and the master switched to read-only mode. By the look of it the slave database failed first and possibly caused the master to switch to read-only mode. The sequence of events was: ... do collect quite a lot of monitoring data, so if you would like to see anything specific, please let me know. The load was not ...

 
issue

[ObjectDB 2.5.5_03] Unexpected exception (Error 990)

Hello! When I run this query SELECT t FROM Unit t WHERE t.lastGeocodedPosition IS NULL OR t.lastGeocodedPosition.receiveTime < :lastGeocodedPosition.receiveTime I get the following exception: ... appended to the parameter name. A real world query looks like this: SELECT t FROM Unit t WHERE ( t . ...

 
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OptimisticLockException

Ran into this error for the first time (after many years of using odb): Caused by: com.objectdb.o._OptimisticLockException: Optimistic lock failed for object model.UserSession#28 (object has version 2 instead of 3) Also the first time I'm using odb in C/S mode rather than embedded. Also have the Explorer open Questions: a) what is it about? #1 2011-04-28 01:37 Ran into this error for the first time (after many years of using odb): Caused by: com.objectdb.o._Opti ...

 
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Start ObjectDB inside java code.

I am building an MMORPG with ObjectDB, and I use it both for the saving of character and inventory (permanent object), but also the storing of ability and maps information (object I load, use, and dispose and then reuse without having change anything). The problems is, as my server and client both run on the same machine and more than one client can be started, they all need access to this information without being able to share any thread, so am forced to use the server model. ... ; And it work, but as soon as i try something like :   String [] test = new String[2] ;   ...

 
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Delete me

Why does the below code not enforce unique restrictions?   Person.java ... Notice that adding Unique to an existing database is like adding an index (since  Unique is implemented as an index), and ...

 
forum_thread

Failed to read the value of field using reflection

I have recently encountered an issue with reading objects: ... the database. This generates the above error. It seems like it is trying to fetch all the characters from the database first, and ...

 
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ObjectDB - Object Database for Java (JPA/JDO)

Fast Object Database for Java with JPA 2 and JDO 2 support. Reduce development time and improve productivity ObjectDB is the most productive software for developing Java database applications using the Java Persistence API (JPA). It is the first persistence solution ...

 
issue

DISTINCT key causing internal exception on 2.6.4.b10

I observed that on new ObjectDb v.2.6.4.b10 query below causes internal exception SELECT DISTINCT $1 FROM Pa3DictionaryItem $2 JOIN $2.values $1 WHERE ($2.namespace == 'com.anritsu.pa3.ttcn3' AND $2.key == 'TliEvent' AND $1 != '') Query above also worked fine on ObjectDb version 2.6.1.b06 ... the validity of your query (the '' suffix looked like a single double quote character " with no closing). This ...