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.getTransaction().isActive()) { em.getTransaction().rollback(); } } } Trianglehead Json Error The default

Optimistic locking: prevent version increment on entity collection attribute

constructor and we are still in the same transaction (before any commit or rollback). In the debugger

How to use ObjectDB properly in spring boot application?

()) em.getTransaction().rollback(); } It works but the code has become uggly since I had to use try

How to delete M2M relationship?

if (transaction != null && transaction.isActive()) { transaction.rollback

Bug with unique constraint exception not resulting in transaction roll back

a transaction rollback as expected. However, this same method is where the persistence is happening

Empty temporary dat files in the temp folder

rollback the transaction and closing the EntityManager. In some scenarios we use additional databases

java 8 LocalDateTime is not working in query

standard, I get an rollback caused by this exception: com.objectdb.o.UserException: Attempt to store

ObjectDB 2.5.0

Added support of nested paths in JOIN FETCH. Added support of persisting collections and maps of user defined types. Added support of Google (Guava) collections. Added support of inheritance of ID fields. Added support of disabling detachment on rollback in JPA. Added support of using entity

Unexpected exception (Error 990) - NullPointerException

, that the transaction has been marked for rollback. Why it has been marked was not clear. KFlash Kevin

ArrayIndexOutOfBoundsException on flush

().rollback(); throw new ApplicationException("Error flushing graph container", e); } finally

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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