About JDO

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Field not persisted in abstract class with two level of nesting

Hi, I have a field (embedded TZ1) which is not persisted in class MHD1 (TZ1  extends AS and AS extends ATT). But it seems to work fine when I skip the AS and make TZ2 extend directly from ATT. Here is an example code MHD1 ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
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Potential ObjectDB bug

Hi, do you know is this error an objectDB bug ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
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Memory consumption of empty Strings

After doing some memory related research in my program, I found a possible place for an enhancement of objectdb: My program has several entities which contain many String. Often some of these String are empty (""). To avoid unnecessary memory consumption, the String within the entities are initialized like: String firstName = ""; ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
manual

Setting and Tuning of JPA Queries

Explains various JPA query settings - result range, flush and lock.... as one of "JPQL" (JPA query language), "JDOQL" (JDO query language) or "ODBQL" (ObjectDB query language). The default is ...

 
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Error when using Object DB Java Agent

Hello! We are using the Java Agent while developing our application because it's not possible to tell IntelliJ to enhance the classes after compiling them. Without enhancing it's painfully slow. So we are using the agent as a workaround while JetBrains is investigating the issue. Our production code is built with maven and the classes are compile time enhanced. With the agent we have a problem. In a couple of our projects this exceptions gets thrown when we initialize logback: ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
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Add class to objectdb ?

Hello , i've made blank db project and opened with explorer.jar How can i add class file then push objects manually by explorer.jar   It only gave me blank : http://img543.imageshack.us/img543/7463/screenshot20130203at001.png       ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
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Failed to write the value of field using reflection (error 363) on LAZY fetch

Hi There I am using ObjectDB 2.6.3. I get the following Exception when I try to read my entities with a query where I have set to use LAZY initalization. It fails when it tries to set a 1:n member (e.g. a Modell has several Artikels) . When I remove the LAZY hint on the query execution it works. Any hints why this can happen? The Mapping of class Modell and its member: ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
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Memory leak with OutOfMemoryError exception

Hi, I'm new to using object databases. Currently I'm experience the following error: ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
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Exception when querying Map property with @embedded & Enhancer enabled

Hi, I have the following test class that is failing when the enhancer is enabled, resulting in the error 'Failed to write the value of field field TestEmbeddableMap$MyAttributeItem.id using enhanced method.', if I disable the enhancement the test works as expected, and returns the expected MyEntity2 Thanks   ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
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Persist not working when ObjectDB and another db is used in the same application (through spring) with different tx managers

Hi,  Object are not being persisted when ObjectDB and another db is used in the same application (through spring) with different tx managers, please find an example of this below. Any help is greatly appreciate as we are currently evaluating ObjectDB to use in our new enterprise application and we need to decide if we are going to purchase it very soon. Many Thanks   Persistence.xml ... Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...