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Changing existing objects from Entity to Embedded

.<init>(EXA.java:87) at com.objectdb.Explorer$1.run(Explorer.java:57) at java.awt.event

Managing software release cycles.

configuration. In some cases you may have to write code. You can use the PostLoad event to adjust

Cascade delete with unidirectional mapping

that direction you have to perform the operation explicitly in your code (maybe in a lifecycle event). support Support

Compress ODB file with XML content

can remain empty in the database, and using JPA events you can initialize value by uncompressing

Best practice: Database update/migration of embedded databases in products

schema, and use a JPA event callback to make the conversion. In V1.1 your class will include

ObjectDB is opening too many sockets

logging enabled: <logger name="server" level="debug" /> During sudden events of socket

Version 2.5.6 enhancement problem solved by updating to version 2.5.7_03

After updating some of my code to java 8, enhancement threw "unexpected" exceptions from two of the source files I applied the most (maybe all) of the changes to. Problem might or might not have been related to the java 8 update. In any event, my enhancement problem went away when I updated

Working with a cleared cache

restrictions on code in JPA/JDO lifecycle event callbacks. ObjectDB should produce better error


, including the database file while it is open by ObjectDB)? Any special event before that failure (e

Bean Validation (JPA 2.0)

JPA 2 adds support for integration with the Bean Validation API. Constraints that are defined for entity and embeddable classes by using annotations can be checked automatically on PrePersist, PreUpdate and PreRemove JPA lifecycle events. Integration with the Validation API is not supported yet by

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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