ObjectDB ObjectDB

Internal Website Search

181-190 of 200 resultsRefresh

EntityManager.find(entityClass, primaryKey) is slow when accessing non-existent IDs

.getResultList(); order.put(between(t, now()), "read\t" + l.size() + "/" + (EVALUATION_LIMIT ... .size() + "/" + (EVALUATION_LIMIT - 1) + "\t" + mode; order.put(d, s); out.println

Listing large number of complicated objects with paging.

server in newest (2.3.3_04) version is running with bigger heap size - now it's 384MB. I was trying ... : " + resultList.size());                 emf.close();     }         @Entity     public static class

Failed to read the value of field using reflection

.ArrayList.size(Unknown Source) Player.toSFSObject(Player.java:45) <-- this is my code from here. I am trying to access the size of a List of an object I fetched from the database. ... The database

JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

Guest count: " + guests.size() );   return guests;     } } I get an exception when I want to use ... () );    final List<Guest> guests =  query.getResultList();    if ( guests.size() > 0 ) guest = guests

"where in" query

();         System.out.println("Result Size: " + results.size());         em.close();         emf.close

Change path for urls2.xml file

to the user.home directory. But you can disable it by specifying 0 as the maximum history list size:     <url-history size="0" user="true" password="true" /> The url history is used to enable

com.objectdb.o.InternalException: java.lang.ArrayIndexOutOfBoundsException: null:

16K page size in the database section of the config file: <size initial="256kb" resize="256kb" page

Online Backup degrades responsiveness.

in size with 79 million records. I don't know if it's because the size of the DB making the backup


No idea what happened. A simple getResultList() opearation. DB table affected size is ~ 26000 records, physical DB file size is ~ 8.5MB Thanks for any help ! Leon log file: ------------------------------------------------------------------------------------------------------------------------ [2016

JPQL support for mapped by (inverse) collections

As discussed and demonstrated in this forum thread, collection operators and methods (IS EMPTY, SIZE, MEMBER OF, IN) are currently not supported for mapped by (inverse) collections. These operations ... ");         //System.out.println(query.getResultList().size());         // SELECT a FROM A a WHERE a.list IS NOT

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.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support