ObjectDB Database Search

the PersistenceManager after reading the DB: java.lang.ClassCastException: com.objectdb.o.ENT ... ; the method on the bottom of the stack trace looks like this: private PersistenceManager persistenceManager ; public void close() {   if( ! this. persistenceManager .isClosed()) {   

.conf to give 256KB disk accesses and use PersistenceManager L1 ref=soft caching and datastore pagefile caching 1 MB (4 256KB sized pages).  The goal is to have frequent PersistenceManager L1

PersistenceManager.getObjectsById(Collection,boolean) throwing JDOException

to reproduce: import javax.jdo. PersistenceManager ; import javax.jdo.PersistenceManagerFactory; import ... .setConnectionURL("build/testcase.odb"); PersistenceManager pm = factory.getPersistenceManager(); Sequence seq1

myself and, upon detecting a full JVM GC, manually evict JdoBlob2s from their relevant PersistenceManager (via persistenceManager .evict(jdoBlob2)).  I would have to maintain the list with a LRU ordering ... " entries from PersistenceManager ). So at this point I think ObjectDB Support Personnel could really

its 1GB.(however, attached the screen shot from the profiler) I have also tried persistenceManager ... ? It may be the result of creating multiple PersistenceManager instances without closing them. support ... PersistenceManager instance (com.objectdb.jdo.PMImp) The application tries to persist records

;   PersistenceManager pm = em.unwrap( PersistenceManager .class);     pm ... their content (discarding changes if any):      PersistenceManager pm = em.unwrap( PersistenceManager .class); pm.currentTransaction().setRestoreValues(true); The first option

tried using ThreadLocal on the PersistenceManager created from a once-per-test-class ... , to no avail. I'm using JDO, and I only ever knowingly create one PersistenceManager ... only ever knowingly create one  PersistenceManager During all tests, you probably create

PersistenceManager - it is useful only to see changes that have been committed by other persistence managers. To undo changes of the current PersistenceManager you will have to invoke pm.refreshAll ... PersistenceManager " Cool, that is exactly the effect I am looking for. What is the difference / characteristics

. PersistenceManager ; import javax.jdo.PersistenceManagerFactory; import java.nio.file.Files; import java.nio.file ... .getPersistenceManagerFactory(properties); PersistenceManager persistenceManager = persistenceManagerFactory.getPersistenceManager(); persistenceManager .close(); persistenceManagerFactory.close(); if(Files.exists

PersistenceManager from your EntityManager :     em.unwrap( PersistenceManager .class ... ) 3) use jdo from jpa - is there a performance penalty for unwrapping PersistenceManager .class ... David Moshal 3) use jdo from jpa - is there a performance penalty for unwrapping PersistenceManager

); // Persist one Counter object: PersistenceManager pm = pmf.getPersistenceManager(); pm ... (); // First user retrieves and updates the Counter:   PersistenceManager pm1 = pmf ... (); c1.increase(); // Second user retrieves and updates the Counter:   PersistenceManager pm2

code to delte the odb files      PersistenceManager pm = ( PersistenceManager ... .setMultithreaded(true); PersistenceManager pm = pmf.getPersistenceManager(); if (codeLogger ... the lock so that database files can be deleted      PersistenceManager pm = getPM

; ... }   PersistenceManager persistenceManager = ...; Transaction transaction = persistenceManager .currentTransaction(); try{ transaction.begin(); MyClass myPersistedClass = persistenceManager

entries under "General".   import javax.jdo.JDOHelper; import javax.jdo. PersistenceManager ; import ... .getPersistenceManagerFactory(properties); PersistenceManager persistenceManager = persistenceManagerFactory.getPersistenceManager(); persistenceManager .close(); persistenceManagerFactory.close(); } } CBE CBE Is it expected

Hi, I am new to JDO and trying to get the PersistenceManager .detachCopy functionality working. I ... =JDOHelper.getPersistenceManagerFactory(properties); PersistenceManager pm = pmf.getPersistenceManager ... "); PersistenceManagerFactory pmf =JDOHelper.getPersistenceManagerFactory(properties); PersistenceManager pm

EntityManager/ PersistenceManager instance then operations are executed sequentially ... / PersistenceManager level. To have real concurrent operations, you have to use ObjectDB 2.0 (and not ObjectDB 1.0) and you have to use multiple EntityManager/ PersistenceManager instances, usually one per thread

) Is this because I'm somehow not closing a transaction properly, or a PersistenceManager , or ... ( PersistenceManager's close doesn't close the database file). support Support Another possibility ... ( PersistenceManager's close doesn't close the database file). I have been closing the PersistenceManagerFactory in

"); PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory(prop); PersistenceManager pm ... . PersistenceManager ; import javax.jdo.PersistenceManagerFactory; public class Main {    ... );          PersistenceManager pm = pmf.getPersistenceManager(); /

and PersistenceManager : In objectdb 1 : PersistenceManagerFactory pmf = JDOHelper ... only 3ms and PersistenceManager pm = pmf.getPersistenceManager(); takes 40ms However, with objectdb 2 ... Gabbouch Just tried to create PersistenceManagerFactory and  PersistenceManager for your database

). It requires a JDO' s PersistenceManager : String[] classNames = com.objectdb.Utilities.getClassNames(pm); In JPA you have to unwrap the EntityManager as a JDO PersistenceManager :   String ... ( PersistenceManager .class)); This method remained from ObjectDB 1.x, but in JPA 2 applications the JPA Metamodel API

, it is mentioned for EntityManager. How do i achieve the same for PersistenceManager as I ... PersistenceManager to EntityManager . In ObjectDB the same object is an instance of both interfaces

be garbage-collected even after the PersistenceManager is closed and they are no longer needed from ... method PersistenceManager .makeTransient(object, true) with a correct FetchPlan? The documentation

This code generates an internal exception: package spiffy.test; import java.util.List; import javax.jdo.JDOHelper; import javax.jdo. PersistenceManager ; import javax.jdo.PersistenceManagerFactory ... ) { PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory("test.odb"); PersistenceManager

.List; import javax.jdo.JDOHelper; import javax.jdo. PersistenceManager ; import javax.jdo ... .getPersistenceManagerFactory("test.odb");         PersistenceManager pm = pmf

PersistenceManager / EntityManager instantiation operations, which are lighter) - in an ordinary ... ;  }     EntityWithJdoConstructor( PersistenceManager pm) {   

HI, I am using ObjectDB and would to change the temp directory location wihtout using objectDB.conf file. I am using JDO and setting the persistenceManager as follow properties.setProperty("javax ... ); pmf.setNontransactionalWrite(false); PersistenceManager pm = pmf.getPersistenceManager(); When pmf

;set to false  or a new PersistenceManager for new operations (i.e.  PersistenceManager

().isLoaded(m_object))     em.unwrap( PersistenceManager .class).retrieve(obj); Note

could I change sequcence id ? allocating small value may not be effect. or something other ways ? javax.jdo.datastore.Sequence seq = em.unwrap(javax.jdo. PersistenceManager .class).getSequence("MyEntity$identity"); long currentValue = seq.currentValue(); // I would like to change currentValue

and two 2 reading data but all hangs up on geting PersistenceManager from the PMF, without cluter

/ PersistenceManager is open. If the referenced objects are not already in memory they will be loaded

the PersistenceManagerFactory  (not just the PersistenceManager instances) and avoid opening

= ClassWithDate.getCorrectDate(new Date()); PersistenceManager pm = getPMF().getPersistenceManager

import java.util.SortedMap; import java.util.TreeMap; import javax.persistence.Entity; //---------------- @Entity class Person { public SortedMap memberships = new TreeMap (); } //Person   import javax.jdo. PersistenceManager ; import javax.persistence.Entity; import javax.persistence

HI, I am using ObjectDb 1.x and getting the following exception while calling the following code PersistenceManager pm = getPersistenceManager(); if (!pm.isClosed()){                       

below and persistenceManager .getSequence("com.spiffymap.model.UserSequence") returns null as

().begin(); em.unwrap( PersistenceManager .class).newQuery(License.class).deletePersistentAll(); em

. Both Hibernate and ObjectDB have an old API ( Session in Hibernate, JDO PersistenceManager in

transactions. When Does each PersistenceManager have its own 64mb processing cache? 

) bmcalist Brian McAlister The first thing that PersistenceManager 's  newObjectIdInstance does

Greetings, I am trying to get my app running on Java 10 (up to now it runs on Java 8) and with the latest version of ObjectDB it enhances fine, but during runtime when first trying to instantiate the PersistenceManager , it gives me the following error java.lang.NoClassDefFoundError

; pmf.setMultithreaded(true);      PersistenceManager pm = pmf

PersistenceManager . Today, copying urls located in urls2.xml allow me to connect to my databases. Unfortunatly

Running this example code: public static void main(String[] args) { PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory("test.odb"); PersistenceManager pm = pmf.getPersistenceManager(); pm.currentTransaction().begin(); TestClass test = new TestClass(1234,"test"); pm

; PersistenceManager by multiple threads and / or other PersistenceManager instances. You wrote: Both threads ... of them uses only objects from its own  PersistenceManager ? There are several things ... guess for a possible cause of this exception is sharing entity objects of one PersistenceManager by

;     PersistenceManager pm = pmf.getPersistenceManager();         pm ... ; public static void persist( PersistenceManager pm) {         pm.makePersistent(   ... ")));     }     public static void delete( PersistenceManager pm) {      

cache InternalException. Fixed JDO PersistenceManager 's  newObjectIdInstance to support classes

, that could be even faster, but didn't find one. I thought PersistenceManager .getObjectsById

PersistenceManager . Fixed an "Enhancement ... is old" bug on overriding persistent properties