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FAQ
9

Where can I learn how to use ObjectDB?

All about Where can I learn how to use ObjectDB? in Java/JPA database - explanations, examples, references, links and related information.
JPA Doc
9

javax.persistence.EntityManager

. The EntityManager API is used to create and remove persistent entity instances, to find entities by their primary ... ). Parameters: name - the name of a query defined in metadata Returns: the new query instance Throws ... specified by the resultClass argument. Parameters: name - the name of a query defined in metadata
Manual
8

JPA Lifecycle Events

/persistence/orm_1_0.xsd" version="1.0"> metadata> metadata> The mapping file
Manual
8

Storing JPA Entity Objects

"> metadata> metadata> The mapping file
Forum
6

JPA 2.0 Criteria API: (When) Fully supported ?

implementation creates a JPQL query string for fetching while the JPA 2.0 implementation uses Criteria API ... have a bug in the Criteria API implementation which prevents correct negation of conjunction and disjunction ... query with Criteria API.    * ObjectDB 2.1.0 - FAIL. Does not support Criteria API:      java.lang
Issue
6

No Entity Class API

and should not be bound to specific entity classes and persistent fields. Therefore, an API for accessing ... the Metamodel API to find details on the entity classes in a database. Obtain Class representation ... the classpath.  Use Java reflection API with information from the Metamodel API to access fields
Issue
6

JPA Query Criteria API (JPA 2.0)

The JPA Criteria API supports dynamic definition of JPQL queries using CriteriaBuilder as a factory ... API in expected in future versions.   Implementation of the JPA Criteria Query API was just added ... with full support of the JPA Criteria Query API, including complete test coverage and documentation. lwalkowski psartini kaosko
Issue
6

ArrayIndexOutOfBounds with Critera API and function call

Hello, This is getting really frustrating sorry but we're close before delivering our app to our customer and went against a show-stopper again. We're building a simple query with the criteria api ... () { return 100; } }; Create Selection Query (Critera-API) from * TestEntity and add WHERE class
Forum
6

Enhancement API - NullPointerException

Hi! I am trying to use the Enhancement API from within my application like this: com.objectdb.Enhancer.enhance("my.package.Foo"); However, I get the following NullPointerException: [ObjectDB 2.7.1 ... , the class exists and trying the API with a non-existent class gives me the expected "is not found by
Issue
6

Enhancer API (JDO 3.0)

One of the new features of JDO 3 is a standard API for enhancement. Currently ObjectDB implements its own enhancement API.