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collection of embedded objects

of @Embeddable objects? ie. Suppose I want to query: SELECT count(a) FROM A a WHERE a.setOfB.value =:value

Wrong data stored in time only fields

();         Query q = em.createQuery("SELECT COUNT(r) FROM DateTime AS r");         Long r = (Long

com.objectdb.o.NLV cannot be cast to com.objectdb.o.CMV

We are using ObjectDB 2.5.1_04. The following JPQL query causes an internal exception: SELECT COUNT(r) FROM RecordingMetaData AS r WHERE ((r.mapFromCli LIKE '' ESCAPE '\')) The exception: Caused by: java.lang.IllegalStateException: com.objectdb.o.InternalException: Unexpected

Doctor - high memory usage

------------------- [1] Unexpected total page count: 33024 (expected 33152) Creating a database copy

java.sql.Timestamp.getTime() not working

Hi, I need to work with Timestamp diff in two entity fields, but this queries SELECT count(p) FROM Player p WHERE p.loginAt.getTime()-p.registeredAt.getTime()>:value SELECT p.loginAt.getTime() FROM Player p fails with object is not an instance of declaring class or java.lang

persitencia (Preguntas y respuestas)

getRowCount() with a SELECT COUNT query. Implement getValueAt() with an ORDER BY query. support Support I

Left join fetch behaviour doesn't retrieve children?

less parent entities than no left join fetch. Example : Doing count(*) of MyEntity => 50000 entities

createQuery method error

Hello, I am learning ObjectDB now. I create a simple Dao method as below: public boolean isJobExist(String name) { TypedQuery<Long> query = em.createQuery( "SELECT count(j) FROM MFJob j WHERE j.jobName = :name", Long.class); return query.setParameter("name", name

Use temporary files to enable very large transactions

arrays which are referenced by ObjectDB classes. The count of byte arrays grows after flush and clear

InternalException when using MEMBER OF on a large list in a query

if you reduce the count (line: 31) to 20.000 or if you switch to the modified query "queryString_Ok

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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