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EntityManagerFactory objects being locked during EntityManager creation

should be fast. In this specific case, the locking thread's stack trace indictes a slower operation

NullPointerException in ENH.g(ENH.java:401)

for your fast response. You were right, I forgot about this schema change. Glad you found it... Thanks

Bidirectional OneToMany is slow on updated items

Hello, I have a problem with the following situation. I insert persons with addresses. In the first run, they are all new with a new address. It runs fast. In the second run, the persons are all loaded and got a second address. This seams to be much slower. The Entities are all enhanced by

Is persistence version 2.1 supported?

/persistence/persistence_2_1.xsd"> <!-- in-memory persistence unit for fast performance and minimal

Tomcat + JPA Problem

was tested with Tomcat 6. Are you using Tomcat 7? support Support thx 4 the fast support. I fixed the Problem

Native ObjectDB Support for EnumSet ?

are supported and are fast (but I am not sure to which classes you want to compare them). Currently

Sample JDO Architecture for Follow Up Questions

JPA). * Database access needs to be super fast, like microsecond times. * The application has many

Warmup ( preLoad all table rows into memory )

Hi , I have 3 questions for objectdb : 1-) How can i preload all table rows into memory in objectdb ? So i can query fast. I have seen @Cacheable annotation. But i need warmup table to memory when my software boots up. 2-) Also for speed up I am inserting a message into table. But within 1 or 10

Why does ObjectDB duplicate classes from javax.jdo:jdo-api?

Hello, I'm using the Java Persistence API (JPA) in a library to not lock myself in to using a specific database. In a project that uses said library, I'm using ObjectDB because it is fast and eliminates the need for another dependency to an ORM, such as Hibernate, since it implements the JPA

Best practise loading big data

, as the screenshots provide very limited information. support Support Hello, thank you for your fast

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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