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Error 363 - Failed to read value of inverse relationship

works fine and the relationships (both forward and inverse) behave as expected in the Object DB Explorer, however when I try to read the Event type, I'm getting the following exception. As far as I ... up with both of them. If you help me to find the problem, I will be grateful. I need to know the answer as soon as possible

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

<- comparably effective as 7, 8", order); iterate(em, false, "hot\titerate\t\tcached\t\tunexisting\t ... \tcached\t\texisting\t<- comparably effective as 5, 6", order); } public static void main ... (" " + d + "\t" + order.get(d)); } } --- 11:00:49.520 [main] DEBUG org.jboss.logging

Criteria Query results in a NoResultException instead of returning object

._NoResultException: No matching results for a unique query at org.jboss.seam.security.IdentityImpl.authenticate(IdentityImpl.java:304) at org.jboss.seam.security.IdentityImpl.login(IdentityImpl.java:223) at org.jboss.seam.security.org$jboss$weld$bean-WEB-INF$lib$seam-security-impl-ManagedBean-class_org

ObjectDB Enincompatible with Quarkus?

introspection. (if I understand it correctly). Feb 18, 2021 3:37:23 PM org.jboss.threads.Version <clinit> INFO: JBoss Threads version 3.2.0.Final java.lang.ExceptionInInitializerError java.lang ... . Actually it seems as an issue with Quarkus (or GraphQL), which takes exclusive control

Schema Update

databases as a complementary operation to renaming or moving these elements in the IDE during source code refactoring. Only these schema changes are specified in the configuration file. As explained in ... $E" /> </package> </schema> The hierarchy, as demonstrated above, is strict: <package


As explained in chapter 2, entity objects can be deleted from the database by: Retrieving ... a separate EntityManager for DELETE queries. As with any operation that modifies the database, DELETE ... variable DELETE FROM Country AS c  // AS + an optional variable ObjectDB supports using the java.lang

Database Management Settings

the background, a soon as new indexes are detected, in order to activate these new indexes. The priority attribute specifies the speed of the index building background process as a number between 10 and 70, indicating a processing rate of between 10% to 70% of the maximum database writing rate. As soon

Storing JPA Entity Objects

or implicitly as a result of a cascade operation. Explicit Persist The following code stores ... .getTransaction().commit(); The Employee instance is constructed as an ordinary Java object and its initial ... of other persistable types can only be stored in the database embedded in containing entities (as

Database Server

embedded mode, ObjectDB is integrated as a library and runs within the application process, which is much more efficient. As a result, embedded mode should be preferred when possible. For example ... Server tool is bundled in the objectdb.jar file. You can run it from the command line as follows

Chapter 6 - Configuration

from the location of the objectdb.jar file. It is defined as the path to the directory in ... directory is considered to be the ObjectDB home directory ($objectdb). As a result, $objectdb ... "); // new $objectdb As with any other system property it can also be set as an argument to the JVM

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.

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