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How to resolve 404 errors with Eclipse/Maven Spring MVC

a logically named directory. (3) Verify maven 3 is installed and verify it works fine from eclipse

Query Method NullPointerException on List iteration


Spring Transactions (@Transactional) within ObjectDB

the lookup is also part of same transaction so it should be aware of the persisted object. The logic

Update is ignored by ObjectDB

) client, they both implement same game logic, but Flash has a way different getter/setter syntax. Using

Attempt to refresh a non managed entity object (error 635)

() it with every transaction (in an application with one thread handling all the business logic) ? dmoshal

Java 9 support

you for the detailed answers. Your approach is clear and very logical. As a result of your initiative

Beginners questions

the posting instructions and use a separate thread for every logical subject. support Support I did, sorry caitanya Caitanya

Update Entity references if we change the type of an entity

Hello, we must change (extend) our entity model and therefor we convert the type of some entities. As example (like in the attached example): We have an EntityA that have a reference to an EntityB. But now we introduced as example a new Entity NewKindOfEntityB. And we have a defined logic

Modifying something with Explorer -> app JPQL with Enum doesn't work anymore

with Long, and add ids for each Enum in my logic, because using @Ordinal is not proper for long term

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

), and there is no reason why any of these entities involved should suddenly become detached. The logic

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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