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Questions tagged [objectdb]

Fast Object Database for Java - with JPA/JDO support

ObjectDB is a powerful object oriented database management system (ODBMS). It is compact, reliable, easy to use and extremely fast. ObjectDB provides all the standard database management services (storage and retrieval, transactions, lock management, query processing, etc.) but in a way that makes development easier and applications faster.

ObjectDB Database Key Features:

  • 100% pure Java Object Oriented Database Management System (ODBMS).
  • No proprietary API - managed only by standard Java APIs (JPA 2 / JDO 2).
  • Extremely fast - faster than any competitive JPA / JDO product.
  • Suitable for database files ranging from kilobytes to terabytes.
  • Supports both Client-Server mode and Embedded (in process) mode.
  • Single JAR with no external dependencies.
  • Database is stored as a single file.
  • Advanced querying and indexing capabilities.
  • Effective in heavy loaded multi user environment.
  • Can easily be embedded in applications of any type and size.
  • Tested with Tomcat, Jetty, GlassFish, JBoss and Spring.

See ObjectDB's features in more detail...

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ObjectDB returns Integer instead of Long when I select just ID, but just for some entities

Testing in ObjectDB explorer while running query: SELECT FROM Post p WHERE id=:id with parameter id set to 3007120 gives me this result: Result for Post id 3007120 But running a query: SELECT p.id FROM Post p WHERE id=:id with the same parameter…
MIeraK
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ObjectDB update query with enum value is not queryable

I am having some difficulty updating enum fields using update queries. It appears that whenever I update an enum field with a new value, the updated value is impossible to match on for new queries. The update query works fine for other data types,…
Bruce Hamilton
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Can ORM + relational DB be considered Object-Relational Database Management system?

I'm wondering why is ORM so popular and everybody is using ORM implementations of JDO and JDA specifications, instead of using object databases that implements these specifications as well. The performance is much better using Object…
lisak
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could not find http://www.objectdb.com/eclipse

In eclipse when i am going to install objectDb data Source Driver like: help-->Install New Software...-->then i am adding url: http://www.objectdb.com/eclipse. it gives the error like: "could not find http://www.objectdb.com/eclipse" so i am…
Bimal Kumar Dalei
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Object db passing an Object as parameter

I have been using JSF, JPA and MySQL with EclipseLink for 5 years. I found that I want to shift to Object db as it is very fast specially with a very large dataset. During migration, I found this error. In JPA with EclipseLink, I passed objects as…
Buddhika Ariyaratne
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Populating JComboBox with TypedQuery does not show Entitys name correct

I want get the name of each object in this return list, but the output is an array of Object[], and this show entitys.Categoria[id=1] in my JComboBox control. I not understand this. Please help me! This is my code: public List…
Mateo Rodríguez
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What do I need to keep in Proguard to run ObjectDB?

I am using Proguard to minimize the size of my shaded/uber Jar. This was working great until I included a dependency on ObjectDB. What do I need to keep to make ObjectDB work? I am getting the following output when calling…
Nathan
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Use database in embedded-server mode outside the `$objectdb` home directory

I'm trying to setup ObjectDB. I am able to create a database and view it with the explorer, using the embedded-server mode to be able to keep the explorer open while running my program. This all works fine, when my database is in the $objectdb/db/…
Abby
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JPQL ordering the search results, using ObjectDB

I am facing simple problem with searching entities by some (sub)string, which they might contain. E.g. I have users with u_name as "rags","mechrags","meragsch" and I will enter to search window "rags" and I used the following query for searching…
rags18333333
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Using REST via GlassFish server- How do I allow updates on a list using HTML input and return a JSON object?

I am using GlassFish 4.1, using REST services within my web.xml (using JAX-RS,) and running queries on my temporary ObjectDB database. I need the input to by checked and return a JSON object with my desired information. I have tested the entire…
Jason V
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How can you pack ObjectDB in a runnable JAR file?

I wanted to know if it is possible to include an ObjectDB database file .odb in a runnable JAR. The method: EntityManagerFactory emf = Persistence.createEntityManagerFactory(path); takes a String path as an argument and not a URL. This means that…
fornit
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what is the purpose of @Edge and @Vertex annotation in OrientDB?

I saw these annotations on Spring Data Orientdb project and I'm wondering if I can use it on java pojo objects to create vertices and relationships. The scenario will be something like that: @Vertex public class User{ @Edge public class Follow…
daniele montagni
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Which is better SQL database or json file?

I am creating an application where large number of data will be stored in the server. For example a to-do list. A user comes, writes down his to-do list like a list of 100 tasks for each day. So, all the task will be shown to him like a list (of 100…
pramodshetty001
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Open ObjectDB explorer whilst running the tomcat server / instance

I'm new to ObjectDB and not sure if I've done something wrong here but I'm getting a couple of issues I'm hoping the community can help me with. First is this annoying inability to view the db in the explorer when the server is running. If the…
null
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UserException: Attempt to open odb database file that is currently in use by another process

I have an application which runs correctly in Netbeans IDE but after building it, it won't just run sometime, the app stop responding to event at a particular point. I was able to reproduce this issue while running the jar file in command line and I…
olyjosh
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