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client server mod of communication

client server mode. 1)EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb://localhost:6137/settercode.odb;user=admin;password=admin"); 2)EntityManagerFactory emf = Persistence ... Clent { public static void main(String[] args) { try{ Getter gtr; EntityManagerFactory emf

ArrayIndexOutOfBoundsException at com.objectdb.o.ALS.c(ALS.java:89)

.run(ForkJoinWorkerThread.java:325) Line 16 in ArpMonitor.scala: val emf: EntityManagerFactory ... it is more efficient to create a single EntityManagerFactory with multiple EntityManager instances. It is uncommon to create multiple EntityManagerFactory instances as demonstrated by your code. support Support

objectdb-2.6.9_02 (with "objectdb.temp.no-enhancement-crc-check") vs. generic classes with interfaces: detailed investigation

() + "," +             EnumValue.class.getName()         );         EntityManagerFactory emf ... and error: Create EntityManagerFactory .. 2016-08-23 00:12:32.946 INFO Main []: *** Create Project ... is performed in Main at: 61: protected void createProject(EntityManagerFactory emf) { log_info

UserException: Invalid configuration in 'internal' - Check permissions

: EntityManagerFatory entityManagerFactory = Persistence.createEntityManagerFactory(filePath); EntityManager = entityManagerFactory.createEntityManager(); However I get the following error com.objectdb.o ... ) ... 21 more It seems like if the EntityManagerFactory class can't be initialized because it can't

system exception occurred during an invocation on EJB GuestDao

.lang.IllegalStateException: Unable to retrieve EntityManagerFactory for unitName null at com.sun ... (Thread.java:744) Caused by: java.lang.IllegalStateException: Unable to retrieve EntityManagerFactory ... .IllegalStateException: Unable to retrieve EntityManagerFactory for unitName null You may have missed

Best practise loading big data

the database (i.e. the EntityManagerFactory). If you need an advice regarding tuning cache sizes ... .persistence.EntityManagerFactory; import javax.persistence.FetchType; import javax.persistence.Id ... .exists()) { f.delete(); } EntityManagerFactory emf = Persistence

Weird issue with variable naming

; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import ... ) {   EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb:$objectdb/db/test ... javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import javax

combined index not used

Exception { EntityManagerFactory emf = Persistence ... , added: entityManager = entityManagerFactory.createEntityManager(); Thread thread = entityManager ... .temp.no-schema-upgrade", "true"); EntityManagerFactory emf

Tracking changes to new collections (in enhancement mode) after flush

;drop";         EntityManagerFactory emf = Persistence.createEntityManagerFactory(dbUrl ... ) { EntityManagerFactory emf = Persistence .createEntityManagerFactory("objectdb:c ... ());                  String dbUrl = "objectdb:F2640c.tmp;drop";         EntityManagerFactory emf = Persistence

Remove of an entry from a @OneToMany collection is not possible if the enhancer is disabled

.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence ... [] args) {   EntityManagerFactory emf = Persistence.createEntityManagerFactory("objectdb:$objectdb/db ... T1602b {     public static void main(String[] args) {         EntityManagerFactory emf

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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