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Issue
4

objectdb-2.6.9_06: Extended Persistence Context fails: 'Attempt to begin a new transaction when a transaction is active'

entity wiring methods: As simplified here to demonstrate the problem: @Singleton @Startup public ... an ideal solution. It works (for now) as a workaround (only) for the purposes of my main real-world ... @Remove remove() from client after calling another method requiring a transaction such as buildProject
Manual
4

JPA / JDO Class Enhancer

tracking of persistent field modifications, avoiding the need for snapshot comparison of entities (as ... (one-to-one relationship) have to be loaded eagerly. Special optimized methods are added to enhanced classes as ... .jar file. You can run it from the command line as follows: > java -cp objectdb.jar com.objectdb
Manual
4

WHERE clause (JPQL / Criteria API)

variable. Before passing these Country objects to the SELECT clause for collecting as query results, the WHERE clause gets an opportunity to function as a filter. The boolean expression in the WHERE clause, which is also known as the WHERE predicate, defines which objects to accept. Only Country
Manual
4

Database Connection using JPA

instance obtained from the EntityManager. An EntityManager instance also functions as a factory ... of the createEntityManagerFactory method takes a map of persistence unit properties as a second parameter: Mapas an argument a name of a persistence
Manual
4

JPA Criteria API Queries

JPQL queries are defined as strings, similarly to SQL. JPA criteria queries, on the other hand ... . as named queries) may be preferred. For dynamic queries that are built at runtime - the criteria API ... Country c An equivalent query can be built using the JPA criteria API as follows: CriteriaBuilder cb
Manual
4

SSL Configuration

") specifies if SSL is used. As shown above, SSL is disabled by default. It could be enabled when accessing remote ObjectDB databases over an insecure network such as the Internet. SSL Keystore and Truststore Files To use SSL you have to generate at least two files: A Keystore file that functions as
Forum
4

2.5.3_02: java.lang.UnsupportedOperationException

) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582) at org.jboss.weld.ejb ... .invoke(Method.java:606) at org.jboss.weld.util.reflection.Reflections.invokeAndUnwrap(Reflections.java:396) at org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke
Result
4

Posting to ObjectDB Website - Important Instructions

. Where to Post Almost everything should be posted to the ObjectDB Forum - and not as an help desk support ticket or as an issue. The exceptions are: Clear ObjectDB bugs, such as unexpected exception thrown ... discussions that must remain private (e.g. special licensing topics) should be posted as Help desk support
Manual
4

Collections in JPQL and Criteria Queries

Collections may appear in JPQL queries: as parameters - when collections are assigned as arguments. as path expressions - in navigation to persistent collection fields. IS [NOT] EMPTY The IS [NOT ... , which should be used for checking other collections, such as a collection that is passed to the query
Manual
4

Database Schema Evolution

and either the same type or a convertible type, as explained below. A matching field ... int to Date) the fields are not considered as matching and the new field is initialized ... that are stored as numeric ordinal values (the default). From any type to Boolean or boolean (0, null