About ORDER BY

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Exception when dataset bigger than treshold

I was working on reporting service for my application and found a problem with datasets bigger than treshold set in objectdb.conf.   ... java.lang.Thread.run(Thread.java:636) [na:1.6.0_24] Caused by: java.io.FileNotFoundException: /tmp/ObjectDB/789641482/BatchQueryItr_0.fls ... Avoid overflow of published source code examples by breaking long lines . You may mark in paragraph code words ...

 
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openejb jpa jaas module

    hello , i've finished jpa jaas module. Here it is :   package com.bayner.auth; import com.bayner.jpa.Principals; import com.bayner.jpa.UserInfo; import com.bayner.jpa.UserPrincipal; ... Avoid overflow of published source code examples by breaking long lines . You may mark in paragraph code words ... names) with the code style (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex ...

 
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Issue with orphanRemoval and multiple EntityManagers

Hi, We have a problem where our database size grows over time more than expected. We've traced it down to the following issue: ... Avoid overflow of published source code examples by breaking long lines . You may mark in paragraph code words ... names) with the code style (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex ...

 
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ClassCastException: cannot be cast to com.objectdb.spi.TrackableUserType

Hello, I have a class TherapeauticDrugScreenRqst with two other nested subclasses - all using Groovy. My first attempt to persist TherapeauticDrugScreenRqst to Objectdb 2.2.8 is successfully. However, although my method to store the method is shown below: ... Avoid overflow of published source code examples by breaking long lines . You may mark in paragraph code words ... names) with the code style (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex ...

 
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CriteriaQuery using isNotNull with other conditions results in InternalException

When I try to execute the following criteria query   ... java.lang.Thread.run(Thread.java:662) Caused by: com.objectdb.o.InternalException at ... Avoid overflow of published source code examples by breaking long lines . You may mark in paragraph code words ... names) with the code style (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex ...

 
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Performance problem

Hi, we have a strange performance problem with ObjectDB 2.5.3_01 and JBoss 7.1.1. We have two ObjectDB databases on one ObjectDB server. Production database is running 5-10 times slower than test database. Their size and number of records are almost identical. When running production database in separate test environment its speed is very good. We did a performance analysis on our 2 linux servers one running JBOSS and other running ObjectDB. - CPU utilization of JBOSS server is max 5-10% (per core)... load of objects from the database. You may find out that by a recursive EAGER fetch you enforce loading of the entire database. ... mentioned in this issue. We solved this problem temporary by migrating all data to new database. We would appreciate if you could ...

 
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Spring + Maven + persitence.xml

Hi, I tested ObjectDB embedded and it is really fast! Everything worked out of the box. Maven: <dependency>    <groupId>com.objectdb</groupId>    <artifactId>objectdb</artifactId>    <version>2.4.3</version>   </dependency> Persistence.xml ... Avoid overflow of published source code examples by breaking long lines . You may mark in paragraph code words ... names) with the code style (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex ...

 
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Error using query with MAX() function

I have a class that is persisting a Entity that holds remarks and a time. Then when I query for the latest remark I get a internal error when the remark is larger than 1966 chars. Here is a test class and entity that reproduces the problem on my system. ... 2.2.2] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.6.0_24 (on Linux ... ObjectDB supports strings in any length that is supported by Java (i.e. up to 2GB). Your test case demonstrates an ObjectDB bug ... 2.2.2_02] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.6.0_24 (on Linux ...

 
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2.5.3_02: java.lang.UnsupportedOperationException

Hello! I use Glassfish 4.0.0 and ObjectDB 2.5.3_02. When I do entityManager.createQuery I get an exception: ... Avoid overflow of published source code examples by breaking long lines . You may mark in paragraph code words ... names) with the code style (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex ...

 
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Should I use ObjectDB and JDO?

My application is not meeting required performance because JavaDB appears to be my bottleneck.  I require a faster DB.  Surveying the Internet lead me to believe that ObjectDB might be just what I am looking for (to achieve MUCH faster database access).  But, I have a few concerns.   ... Avoid overflow of published source code examples by breaking long lines . You may mark in paragraph code words ... names) with the code style (can be applied by ctrl + D). Long stack traces (> 50 lines) and complex ...