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issue

Negative snapshot user count exception

I found the following stack trace in my log files; it's cropped up a number of times: ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...

 
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Enforce Second Level cache

In my application I have an entity with few transient Collection fields, these are constantly updateing very fast and access to those fields is needs to be fast too, thus I dont persist them (also this information is temporary and doesent need to be kept). I suppose that entity modified is the same that is cached in 2nd level cache. so that if i request that entity again I will get actually the same object with already ready state. Not sure about this but please leave your comment on this (is it really the same object kept in cache).... ... Collection fields, these are constantly updateing very fast and access to those fields is needs to be fast too, thus I dont persist them (also this information is temporary and ...

 
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Selective merge/cascade of detatched entity

I'm having an issue with my application, and I'm hoping you guys will be able to help. Please forgive typos and obvious errors, I'm having to retype from a non-internet connected network. A contrived example is: ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...

 
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JPA Metamodel (JPA 2.0)

The JPA Metamodel API enables examining the classes, fields and properties of the persistent object model, similarly to the Java reflection API. The JPA Metamodel API has a major role in defining queries using the JPA Criteria API.... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...

 
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Bean Validation (JPA 2.0)

JPA 2 adds support for integration with the Bean Validation API. Constraints are added to entity and embeddable classes by annotations, and can be checked automatically on PrePersist, PreUpdate and PreRemove lifecycle events. Integration with the Validation API is currently not supported by ObjectDB.... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...

 
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Example database world.odb

Hello! Where can I find classes for example database world.odb? Thanks for the answer.   ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...

 
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JPQL Update & Delete (JPA 1.0)

The JPQL (Java Persistence Query Language) supports updating and deleting database objects by queries. Currently ObjectDB supports only JPQL SELECT queries.Delete queries are supported for JDOQL (JDO Query Language).... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...

 
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JPA Query Criteria API (JPA 2.0)

The JPA Criteria API supports dynamic definition of JPQL queries using CriteriaBuilder as a factory. ObjectDB supports dynamic definition of JPQL queries as strings and expected to support also the new JPA 2 Criteria API in future versions.  ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...

 
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Possible issue for JPQL "LEFT [OUTER] JOIN"

Possible issue for JPQL "LEFT [OUTER] JOIN" is doing "[INNER] JOIN".   Thanks. ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... 15:23 Great and fast solution but it doesn't work with the following JPQL queries string: ...

 
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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   ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...