ObjectDB Database Search

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Can I Disable the Creation of the "log" Directory?

ObjectDB as the log directory is in the  objectdb.conf file. See this manual page regarding

Too many objects for this ObjectDB Edition

. Shane1234 Shane Murray It is a restriction of the free edition. Please see this license page . support Support

Low performance when getting grove roots

is explained in this manual page . support Support As I understand, I require having javax.annotation.xxx

SSL cannot connect from client StackOverflow error

you again for this report. The relevant manual page was updated now. support Support

connection pooling

them when it creates new EntityManager instances. See this manual page for more information on working

Where do i download the explorer from

Hi, Where do i download the explorer from? I dont see any link. Please guide. Ravi ravionweb Ravi It is included in the zip file that can be downloaded from the download page  (with the entire ObjectDB distribution) in the bin directory. support Support

General Performance Issues Illustrated with a Specific Method

defined (see this manual page regarding indexes) so a full scan of all ClientBasicData instances

RT Java application recording into 100DB run OOM after a few hours.

are per database. For example, the default cache size for database pages is 64GB per database, or 6.4GB per 100

Query can't see recently persisted object

// mem.flush(); } ... paul Paul Hudson You can change default flush mode on the EntityManager level or on the Query level. See this manual page . support Support

Connecting to a remote objectdb server

page .   support Support I've tried your suggestion already. Isn't that objectdb should create

Getting a list of all the entity class names

I was wondering if there is any way to get a list of the entity names in the database? dmoshal David Moshal You can use the Metamodel API as explained by the JPA Metamodel API   page in the manual. support Support Actually, there is a simpler way to get the class names (in one line of code

embed the .odb file in tomcat webapp container

hi all new at objectdb, just wondering if i put the odb file inside tomcat webapp, how do i change the "$objectdb/db/fm.odb"? thanks macroselfian Jeff liu See this page for details about the ObjectDB home path ( $objectdb ). support Support

ObjectDB future

the forum, the issue tracking and the download page and see that ObjectDB is different. Since it first

@PrePersist Problem

HI I am trying to use @PrePersist annotation in my project.This application is using struts2 with jpa combination .so can u please tell me how to us this annotaton before save the record into persistence.   claerly how to use in pojo and in action class rameshanem rameshanem Please read this manual page . support Support

Spring Data JPA - PersistenceException thrown

on the maven page   http://m2.objectdb.com/com/objectdb/objectdb/2.6.3/      

Performance issue in a query due to compareTo calls

private TCStep step; See examples on  this manual page . support Support

auto-generated uuid fields

Hello, we're porting a JDO application to ObjectDB which uses uuid-hex generated values. However the page on generated values in your JPA tutorial only mentions numeric generated values, and when we try to use it the error message seems to imply that auto-generating strings isn't supported

How to start a objectdb server with new Daemon (without blocking the thread)??

;com.objectdb.Server.main(...); where the parameters are explained in the server documentation page . This can also be invoked in a separate thread. support Support

Replicated cluster recovery

Currently the slave servers are limited to read only (it is indicated at the beginning of the page

Vacuum - Reclaiming Unused Space In Odb

because of the use of BTrees (in which pages are at least half full but usually not completely

Database size is much larger than expected (x2)

:     image.ImageSogou     image.Meta     image. Page  

Delete object from collection versus delete from JPQL

, and accordingly break the synchronization between memory and database objects. See these manual pages

Unexpected query token 'delete' (SELECT is expected) (error 752)

simple codes(see attachment), failed.   gzdillon Lai Yang DELETE queries should not be run with getSingleResult ( which is for SELECT queries). Use executeUpdate instead. See this manual page . support Support

Understanding limitations of schema evolution

update page http://www.objectdb.com/java/jpa/setting/schema it is not clear how to handle this case

Modifying something with Explorer -> app JPQL with Enum doesn't work anymore

what a great support team ObjectDB has. PS. As a very happy user, I created the wiki page for "objectdb

Error in reading Enum in JPA - Failed to read using reflection

, please submit a small test case that demonstrates the problem (using the template on the posting instructions page ). support Support

Significant I/O costs during batch update or insert data.

ObjectDB, which may increase memory usage and cause paging . If you still experience a problem

Connect to objectdb database

; "objectdb://11.13.0.151/my_database.odb" ) ; See the   persistence unit manual page

Failing in embedded mode, correct javax.persistance?

I'm trying to run the tutorial example as given in the tutorial on ObjectDB's net pages . I am using NetBeans IDE 13 with Java 17.0.2 on Windows 11and with ant. My ObjectDB is version 2.8.7. Q 1) The tutorial is supposed to run embedded. If the file given does not exist, it should be created

Insertion Speed Rate and Batch Load

number of objects per transaction. This is explained in the Storing JPA Entity Objects page in the manual

Using Enum type in NamedQuery: Field is not found in type

Persistable Types page Thanks for the help asmiller Andrew Miller The problem may be related to using an inner

recovery enabled="false", still creates tablename.odb$ files

explained on this page  (with more details): The value of $objectdb (the ObjectDB home directory

@Column( name = "columnName") doesn't work

by ObjectDB (as indicated for example on the Column annotation doc page ). When you use ObjectDB

Exception while accessing the Persistence unit ...?

eclipse is deploying the application and I can access the web page but I am unable to do any

Using explorer with a live embedded db

only when no configuration file is found elsewhere. Please read the explanations on this manual page

java.lang.ClassCastException: CriteriaQueryImpl cannot be cast to java.util.List

= query.getResultList(); For more details see this manual page . support Support Please delete

Memory consumption of empty Strings

/memory-efficient-java-tutorial.pdf - page 26 e.g.). I assume objectdb is doing a "new String

Attempt to execute a query using a closed EntityManager

Hi again! Suddenly, my app started to throw this exception. I would really appreciate some advices. com.objectdb.o.UserException - Attempt to execute a query using a closed EntityManager at com.objectdb.o.MSG.d(MSG.java:61) The doesn't make any sense. Scenario: 1. JSF page with create form is used

Error 613 - i cant put a list into a Squad object

cascading persist . See the Storing JPA Entity Objects page in the ObjectDB manual for more details. support Support

ObjectDB 2.3.6

Improved performance of collection and map size evaluation in queries. Fixed a critical bug in page caching (issues #610 , #621 , #625 ). Fixed a bug in optimization of non ASCII string indexes. Fixed the new query HOUR function to return hours as 0 to 23 (using 24-hour clock). Fixed a regression

evalution limit error on digital ocean ubuntu

ObjectDB. More details about the location of the ObjectDB configuraiton file can be found in this manual page . support Support

JQL-Update Queries fails with activated L2-Cache

on the UPDATE query manual page : Updating entity objects in the database using an UPDATE query may be slightly

Navigation through lazy loading from Detached Objects

A main limitation of detached objects (as explained on the Detached Entities manual page ) is: Retrieval by navigation from detached objects is not supported, so only persistent fields that have been loaded before detachment should be used. As explained on the Object DB vs EclipseLink/TopLink

Tutorial Typo

I was going through the Eclipse Spring tutorial as part of my training, and I noticed this.  On the page : http://www.objectdb.com/tutorial/jpa/eclipse/spring/entity The tutorial first says: Enter META-INF as a new folder name and click Finish. Then, after the picture, it says: Right click

Sometimes the ObjectDB throws an internal expeption if a persist() was executed

: The new version is not yet available on the download page . btc_es BTC EmbeddedSystems Sorry, 2.6.7

ObjectDB Server not able to handle large collections

result paging to retrieve results in smaller chunks of less than 2GB.     support Support

Errors after unexpected server shutdown

: com.agile.hummingbird.ObjectNode[modified] [2018-03-26 14:39:30 #1100 store] BTree Page : 18071876

message: RetrievalTask in log

we faced a poor performance of objectdb last week, during that time frame we have this message in the log: ... [2019-03-01 11:53:40 #5 store]  RetrievalTask.reportPrimaryResult0: page #27184134, reader.getPos() = 816 ... what does that mean, what to do ?   hgzwicker Hans-Georg Zwicker

ObjectDB 2.7.0

property access mode. Fixed a bug in allowing page sizes larger than 64KB (which are not supported by ObjectDB). Fixed an issue of very slow online backup.

Read only hint for query

modify those entities - like listing entities, paging , logging, reporting. lwalkowski Lukasz Walkowski