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Questions tagged [datanucleus]

DataNucleus AccessPlatform is an implementation of the JDO and JPA API specifications for Java object persistence, as well as providing a REST API. It is fully standards-compliant, and supports persistence to RDBMS, ODBMS, documents (XML, Excel, ODF), web-based (JSON, Amazon S3, GoogleStorage), map-based (HBase, Cassandra), document-based (MongoDB), graph-based (Neo4j) as well as some others (LDAP).

DataNucleus AccessPlatform is an implementation of the JDO and JPA API specifications for Java object persistence, as well as providing a REST API. It is fully standards-compliant, and supports persistence to RDBMS, ODBMS, Documents (XML, Excel, ODF), Web-based (JSON, Amazon S3, GoogleStorage), Map-stores (HBase, Cassandra), document-based (MongoDB), graph-based (Nep4j) as well as some others (LDAP).

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Find by multiple ids in datastore using jpa 2.0

Here is my JPA query: String jpql = "SELECT a FROM Account a WHERE a.id IN :list"; TypedQuery q = mgr.createQuery(jpql, Account.class); q.setParameter("list", list); return q.getResultList(); Here is the error log: Cannot find type of…
Katedral Pillon
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How to store recursive object in database?

How can I store an object that has references to other objects of the same class? I have tried a lot of ways to doing it with annotations and XML but all of them have failed. In the best cases, I get the following error: WARNING: Insert of object…
Facon
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DataNucleus type converter: JPA 2.1 compliant?

Is DataNucleus (latest 5.1.1) JPA 2.1 compliant? JPA 2.1 supports @Converter. But DataNucleus has its own way (as extension) ignoring JPA standard: http://www.datanucleus.org/documentation/extensions/type_converter.html UPDATE The same code with…
eastwater
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JPA Native Query MongoDB

Does Datanucleus JPA have support for MongoDB For example: entityManager.createNativeQuery("db.Movie.find()");
Ramesh Manly
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Datanuclues With Hbase Not Working With Collections Via JPA

Has anybody any experience with HBase usage with Datanucleus via JPA. I'm struggling to get Datanucleus to fetch collections for me from the Datastore. Any pointers would be much…
Ravindranath Akila
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