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Sample JDO Architecture for Follow Up Questions

databases. Each database will be represented by a single PersistenceManagerFactory and a single

Freeze during save

class I2299 { public static void main(String[] args) { PersistenceManagerFactory pmf

[ObjectDB 2.4.1] Unexpected exception (Error 990) on getObjectById

) {                 PersistenceManagerFactory pmf =             JDOHelper.getPersistenceManagerFactory("objectdb:d:\\temp\\test.tmp

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.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
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  5. Search or file an issue
  6. Contact support