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){         EntityManagerFactory emf = Persistence.createEntityManagerFactory(             "$objectdb/db/test.odb ... final class Test { public static void main(String[] args){   EntityManagerFactory emf

Database(*.odb) file size on disk

.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.FlushModeType ... (String[] args) {   EntityManagerFactory emf;   emf = Persistence.createEntityManagerFactory

EntityManager refresh problem

javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import javax ... (dbFileName);         odbFile.delete();         EntityManagerFactory emf = Persistence

Memory leak while merging parent with No Cascade annotation with children

.EntityManagerFactory; import javax.persistence.Id; import javax.persistence.ManyToMany; import ... (String[] args)  {         EntityManagerFactory emf = Persistence.createEntityManagerFactory

Mysterious "Attempt to persist a reference to a non managed instance" error

.EntityManagerFactory; import javax.persistence.EntityTransaction; import javax.persistence.Persistence; import ... ) {     Enhancer.enhance("failing.*");       EntityManagerFactory emf = Persistence

Cannot sort descending, when ordering by caluculated float in a method

main(String[] args)     {         EntityManagerFactory emf =             Persistence ... ("javaapplication.*"); EntityManagerFactory emf = Persistence

multiple LEFT JOINs do not work as expected

static void main(String[] args) {         EntityManagerFactory emf =             Persistence ... class T616 { public static void main(String[] args) { EntityManagerFactory emf

Server connection management

can also be specified in properties map when instantiating the EntityManagerFactory. Currently the default pool ... {     public static void main(String[] args)     {         EntityManagerFactory emf

Performance and memory usage of queries

; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax ... = 500000; public static void main(String[] args) {   EntityManagerFactory emf = Persistence

Join performance in Objectdb

) {         EntityManagerFactory emf =             Persistence.createEntityManagerFactory ... ) {         EntityManagerFactory emf =             Persistence.createEntityManagerFactory

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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