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Object explorer cannot open odb file. ObjectDB many-to-many relationship

the to many direction with no queries) is not supported by ORM JPA implementations

Unexpected exception (Error 990)

:597) at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler

@OrderColumn issue

Hi All, For some reason I'm not able to make the @OrderColumn annotation work. The test case is attached to the thread. Kind regards Martin1978 Martin Mihalev As stated on this documentation page, this ORM/SQL annotation is silently ignored by ObjectDB. This is because ObjectDB does not map entity

The attribute column name (EXCEPTION) is a reserved SQL-99 keyword.

names (such as exception). You can either use the @Column annotation or define the mapping in an orm xml


Hi, For last few days I was refactoring my application from standrad ORM aproach to ODB. Everything is fine for now, but I have a question about Explorer. It works only in R/O mode, which in some cases is insufficient for effective work. Is there any plan to release a R/W version of Explorer

Failed to write the value of field using reflection (error 363) on LAZY fetch

am using a spring context (org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean)? Any

Does JPA have any configuration to create DDL's that are database specific

. But this is relevant only for ORM (Object Relational Mapping) JPA and ignored by ObjectDB. support Support

Suggestion for improving the examples

of the documentation. Note also that ObjectDB, as an object database, silently ignores @Table and other ORM

Once served to JSF page via @EJB query bean, many list fields are null (but same query ok after fresh persist in @PostConstruct)

getOwner() { return owner; } (For completeness I've left the old ORM annotations in

ObjectDB 2 JDO Manual

, I just see it as an ORM tool used to awkwardly map an object language to an object database. And I

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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