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Dont want to use Proxy Class

an instance of java.util.ArrayList, we are getting UserException that states "Failed to generate dynamic ... . Therefore, using defineClass dynamically by ObjectDB, although it is a standard Java feature, is not supported ... -time and include them in the objectdb.jar file to eliminate the need of dynamic class generation. support Support

Multi-tenant setup

request to appropriate database, how to dynamically add new database or schema. There are lot ... managers in Java EE and JPA is static. ObjectDB supports a dynamic schema, if your application generates entity classes dynamically (e.g. using CGLIB, javassist, asm, bcel). However, you will lose

ObjectDB within a resource adapter module and Java EE Connector Architecture

://stackoverflow.com/questions/8784302/dynamic-persistencecontext-unitname-attribute-for-container-based-entitymanager https://stackoverflow.com/questions/9957179/jpa-dynamic-persistence-unit-name https://stackoverflow.com/questions/33790875/how-to-dynamically-modifying-unitname-in-persistencecontext Not

Problem of Enhancer with JAXB / Proxified Entity Bean.

observed that the Enhancer is unable to process dynamic class created with JAXB, so my beans aren't ... this will not be easy. In our tests we also use enhancement of dynamically generated classes. We do not use JAXB or CGLIB, but classes that are generated dynamically can be enhanced, if they do not reference

ObjectDB Enhancer Tool in Java 9

.UserException: Failed to generate dynamic type jdk.internal.reflect.SerializationConstructorAccessorImpl ... .UserException: Failed to generate dynamic type jdk.internal.reflect.ConstructorAccessorImpl at com

Field not persisted in abstract class with two level of nesting

to generate dynamic type objectdb.BUG2.AS (error 361) at com.objectdb.jpa.EMImpl.persist(EMImpl.java:445 ... dynamic type objectdb.BUG2.AS at com.objectdb.o.MSG.d(MSG.java:74) at com.objectdb.o.ACL.d(ACL.java

how explorer queries work

well, even if i have to avail to dynamic class loading, reflection, etc. jon jon ObjectDB knows ... . If you build your classes dynamically it could definitely explain the mismatching. Try to avoid using user

Query fails with failed to read

1142, issue 1682. At least issue 1682 is related to online backup and was fixed in version 2.6.3. Are you using online backup when the exception is thrown? Any other special activity at that time ... your application). support Support we have it now 5-10 times per day. There is not any backup activity

InternalException caused by OOM: Metaspace

.objectdb.o.InternalException: com.objectdb.o.UserException: Failed to generate dynamic type objectdb.java.util.ArrayList com.objectdb.o.UserException: Failed to generate dynamic type objectdb.java ... a dynamic wrapper class for ArrayList (objectdb.java.util.ArrayList) If the JVM MaxMetaspaceSize

Compare two schemas or odb files

For example, if we make a backup of our database it would be helpful to have the possibility to compare the backup schema (odb file) with the current version in the database and as result ... graphs stored in the db with old graphs from backup db. wua Andreas Wurm

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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