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Forum
16

Does ObjectDB create one instance of each entity class on (web app) load ?

reason create an instance of each entity (and if so, under what circumstances) ?   I can also see that for Abstract bases of entities it is creating one instance with an instrumented class name ... was inadvertently creating the said instances myself, because I also usually at startup do temporarily create
Issue
16

ObjectDB tries to create a File in a localtion without write access

: Failed to create a new file 'IndexManager_12.mrg_filter' at com.objectdb.o._PersistenceException ... .g(JPE.java:78) ... 25 more Caused by: com.objectdb.o.UserException: Failed to create a new file ... Source) at com.objectdb.o.LFL.D(LFL.java:855) ... 37 more Please provide a fix which creates
Forum
16

how to create only table structure.

hi, I want to create only a table without insertions of data. And also table contains constraints like not_null, unique, primary key etc. Ex: (In sql) create table emp (id int(5) primary key, name varchar2(20)); , so it will create only table. when we want to see the table structure then "desc emp
Forum
15

How to create a wildfly datasource with dsJndi name to an objectdb database?

Hello everybody, maybe someone can help me creating a wildfly datasource to an objectdb database? I want to setup the authentication in my JEE-Application working the following way: - users ... Therefore I need a dsJndiName for the objectdb database and I can't find anything how to create
Forum
15

Is there any GUI for creating/editing entity?

Hi, I'm new for JPA/JDO. How should I create/edit entity class? Is there any GUI?   In my searching easily, there is the jpa function of myeclipse, or Dail. http://www.myeclipseide.com/documentation ... for creating/editing entity and JPA/JDO things. I'm expecting the one like MySQL Workbench.    TIA :) Some
Forum
15

Create simple index for a Id field

, so you don't have to create an index for the id. The thing is that I noticed it's really fast
Forum
15

Does JPA have any configuration to create DDL's that are database specific

There some JPA classes who's names more that 30 character. This worked well in MySQL , Derby , PostgreSQL but when it was tried on oracle , we hit the constraint that oracle has of 30 characters.   So basically my question is that is there any JPA have any configuration to create DDL's
Forum
15

How to create a Unique constraint?

Hi, I'm trying to create a unique constraint. Here is a simple example: @Entity public class Account { @Id @GeneratedValue private long id; @Index(unique="true") private String name; } The code runs and my Account objects are persisted. But no exception is thrown
Forum
15

how to create in memery database in objectdb

plz can u give or help me how to create in memory database in objectdb   with example See answer in this forum thread (also use that other thread for further discussion). yadavanil
Forum
15

Is there an administration tool with which I could create extra indexes?

Hello, I have composite index, and it was working fine, but now I need to add more features to the software and I need to throw more indexes in there. I wanted to know what's the best way to do this. 1. Have some admin tool CREATE INDEX..... ON a.b or 2. add more @Index to the object entities. in