About Explorer

issue

Issue with UPPER ?

Hi, Assuming those queries which are all the same except the UPPER calls: ... Here're the query stack traces from the explorer for each case. Attached you can also find my database for testing hope ...

 
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schema update procedure

Is there a specific procedure that we should follow when making schema updates? #1 2011-09-02 12:15 Is there a specific procedure that we should follow when making schema updates? I have often found that i ...

 
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How to upgrade from ObjectDB 1.0?

Explains how to upgrade from ObjectDB 1.0 to ObjectDB 2.0.... by default. Not all the features of the old 1.0 Explorer are already supported . ...

 
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Slow performance on Mac

- This code is tested on Windows and Mac. Windows is working great, Mac is very slow (read is 11 seconds on Mac, and 100 milliseconds on Windows). - Application is using Spring Boot console application (for JPA implementation) - MacOS Sierra 10.12.3, Core i7 CPU, 16GB RAM, SSD drive java version "1.8.0_131" Java(TM) SE Runtime Environment (build 1.8.0_131-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)   Running sample jar: ... method, which would take 5 seconds. Also the ObjectDB explorer behaved weirdly and would hang for ~20 seconds when opening a database ...

 
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Safe Settings

Hi, I am trying to set up ObjectDb in a safe way that allows turning the machine off while database transactions are running. I would like to test if things are really safe and if I don't get corrupted database files in any possible case. I found "recovery" and "recording" in the objectdb.conf file. Which one is safer to use? I suppose I should turn on sync="true", right? #1 2011-03-28 16:05 Hi, I am trying to set up ObjectDb in a safe way that allows turning the machine off while database trans ...

 
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database optimization

Hi, couple of questions regarding database optimization: 1) Noticed something odd with the level 2 cache configuration:    level2="0mb" -> 20 msec query    level2="2mb" -> 10 msec    level2="10mb" -> 40 msec Question: why is a larger level2 cache worse than no level2 cache, ie 10mb worse than 0mb? 2) (separate issue) I'm noticing that write queries are around 20-50x slower than read queries, on the same set of objects. #1 2011-02-25 05:29 Hi, couple of questions regarding database optimization: 1) Noticed something odd with the level 2 cache ...

 
issue

Internal Exception

Critical error:: com.objectdb.o.InternalException: Unexpected internal exception at com.objectdb.o.JPE.h(JPE.java:165) [objectdb-2.4.4_05.jar:] at com.objectdb.o.ERR.f(ERR.java:70) [objectdb-2.4.4_05.jar:] at com.objectdb.o.OBC.onObjectDBError(OBC.java:1505) [objectdb-2.4.4_05.jar:] at com.objectdb.jpa.JpaQuery.getSingleResult(JpaQuery.java:723) [objectdb-2.4.4_05.jar:] ... Caused by: java.lang.NullPointerException at com.objectdb.o.WVP.q(WVP.java:539) [objectdb-2.4.4_05.jar:] at com.objectdb.o.WVP.l(WVP.java:220) [objectdb-2.4.4_05.jar:] at com.objectdb.o.WV... ) On the attached database. Also happens in Explorer. ...

 
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Can't post on your forum

Since yesterday, I can't post on the forum because it always says that I should log in in order to do that. I was already logged in, but, anyway, it appeared as not. I go to log in, then I authenticate, then I'm redirected to the home page, but it still looks that I'm not logged in, so I can't post on the forum. I tried removing the cookies, but nothing. I tried in another browser, but the same. I have new bugs to post, so it's pretty important. ... tried in incognito, but nothing. Just in Internet Explorer 11 your website seems to work properly. ...

 
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Question about overriding default equals and hashcode

Hello Support, I have overrided equals and hashcode method in my entities beans. I don't know if you use these methods in your objectdb implementation. ( for comparing bean ? ) If yes, does it have an impact on performance of database ? Regards, Xirt   ... queries when entity classes are not available (e.g. in the Explorer). If JAXB adds fields to your classes, their names and types ...

 
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Change path for urls2.xml file

I am using ObjectDB embedded and have set my home path in relation to the JAR, but running the program still creates .objectdb/urls2.xml in my system user folder.  Is there a setting to change the creation path of this file?  I assumed it would be in relation to the home path, similar to the db and log files. ... is used to enable opening recent database files in the Explorer. Your end users probably don't need that feature. Disabling it ...