About managed

forum_thread

Pessimistic Lock Timeouts setting

Hi,   I realise that JPA2 doesn't necessarily define a standard API way for Lock Timeouts. However, there is a standardised query 'hint' that can be setup to make the underlying DB lock a record for a specific time. The hint property is: "javax.persistence.lock.timeout" #1 2011-04-29 04:30 Hi,   I realise that JPA2 doesn't necessarily define a standard API way for Lock Timeouts. Howev ...

 
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Failover from Master to Slave

Good morning! I am interested in ObjectDB for a client project I am currently working on. In order to evaluate your tool I would like to know if your product has the ability to failover from a Master Database to a Slave Database and then recover back to the master when the master comes back online. I don't see any documentation about automatic failover.   Thanks Rich   #1 2014-02-19 18:44 Good morning! I am interested in ObjectDB for a client project I am currently working on. In order to eva ...

 
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Externalising persistence.xml properties in Glassfish?

Hi, ... to have a connection pool setup to the database - aka a managed pool. In Glassfish, setting up this pool is like this (domain.xml): ...

 
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Type ... is not defined as an entity (@Entity is missing) (error 302)

Hello, I am using ObjectDB 2.2.8_08 with eclipse 3.6 and Groovy objects. I am attempting to persist an instance of CultureRqst in the project com.epimss.lab by using a Connection class imported from the project com.epimss.admin.   I can access the database OK, but attempting to persist the CultureRqst leads to the following exceptions: ... progress with these issues and objectdb. If you have managed to use it in multiple OSGi (Eclipse) projects, please let me know. I ...

 
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"where in" query

Is it possible to run a query selecting values that exist in a provided list? e.g. something like: SELECT u FROM User m WHERE u.username IN ('test_user','anotheruser') I've tried various combinations of this including passing the list as a named parameter but without any joy. The only similar examples I can find in the docs involve a join query - but my list isn't in the database - and the MEMBER OF operator doesn't seem to do what I want (although I may be using it incorrectly! #1 2011-06-23 08:12 Is it possible to run a query selecting values that exist in a provided list? e.g. something like: SELEC ...

 
issue

EOFException

Not sure if you'll be able to help with this but I've had an application get into a state where it cannot access anything from the database - queries fail with the following exception: Bug Version: 2.3.3 Priority: Critical Status: Fixed Replies: 2 Type:  Bug ...

 
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Weird behaviour with enhanced classes and embedded entities

Hi, I've found some weird behaviour in my project (www.tinymediamanager.org): Sometimes some entries of my ArrayLists with embedded entities are missing. I've hunted the problem down to an enhanced/proxied list in my entity which contains embedded entities and some .add(obj) are simply failing. Here is a small sscce which reproduces the issue: ... by one thread another thread is trying to work with a managed entity object and update it. ObjectDB Support ...

 
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Persist error @ManyToMany how to define correct entities relationships

I have Product entities containing a list of Category enties. Each product can have multiple Category but all sue the same limited set of Category entities. There is not changes made to Category from Product. The category ID is taken from the webservice Object ID (unique too). ... 16:28 I finally managed to get it working by using merge when commit fails on persist and using ...

 
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Speed of queries that return many objects

Hi, I have a DB of 146MB - with 1_000_000 elements. Loading the contents (objectDB query in java) takes about 10sec. I am using a recent MacBook (SSD blabla - disk I/O speed is about 400MB/sec - according to blackMagicTest app for mac) - so I was expecting the query to take less than one sec (146/400 = 0.35sec.. + some overhead). I was wondering if this kind of speed is "normal", or if this is something I should investigate. Thanks EKK #1 2015-08-29 21:10 Hi, I have a DB of 146MB - with 1_000_000 elements. Loading the contents (objectDB query in java) ...

 
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Explorer in 2.3

First, the new Explorer in ObjectDB is fantastic! This is exactly what we've needed - an easy way to do ad-hoc JPQL queries and navigate through the results and even make small changes to primitive data and Strings. After playing with it for a while, here is a list of additional features I'd love to have: 1. Export of selected data: a. Simple - Select a range of cells or a column header and copy text to the clipboard or save to a file (csv, html, etc..). (There appear to be copy menu options, but I cannot get them to work.) #1 2011-10-04 20:50 First, the new Explorer in ObjectDB is fantastic! This is exactly what we've needed - an easy way to do ad-ho ...