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can't get HashMap out of the database

have references to older ObjectDB versions in both the pom.xml and the .classpath files. support

type.loader java.lang.ClassNotFoundException

database might be the result of another issue - please try to isolate the problem. The server should work well with no entity classes in the classpath. support Support

PersistenceException: Failed to locate field

version of the class (in its classpath) without the new field. support Support I'm wondering if any

Adding indexes on existing entities.

the classpath. Update: Starting ObjectDB 2.6.6 new indexes are automatically built and activated in

Connection performace after upgrade to objectdb 2

on looking for classes and JDO metadata in the classpath (for synchronization with the database

OEM: Too many persistable types (>10) - exceeds evaluation limit (error 1011)

to get such messages unless ObjectDB cannot find your entity classes in the classpath. When an entity

migration path from JPA / Hibernate

might be straightforward. Just add objectdb.jar to the classpath and set ObjectDB as the provider in the persistence

drop a column from table

your application to register the change, or run the Doctor with a classpath that contains your entity classes. support Support

No Entity Class API

exists in the database and missing from the classpath. Use Java reflection API with information from

ObjectDB 2.0.0

Improved processing of some sorts of queries. Added support for using ObjectDB with JPA 1 jar in the classpath. Changed server start avoiding new process creation. Added logging for class loading and method finding problems. Fixed a bug in the results of IS [NOT] NULL queries. Fixed a bug in

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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