11 | Index on a low cardinality column (e.g., a count query, as part of a composite index, etc.), so the recommendation is to try a simple ... that is needed for executing the query? If it does it would be helpful. Therefore, composite indexes |
8 | javax.persistence.PersistenceExceptionHi I am trying to get a basic EclipseRCP project working with Objectdb. At the very first line in creating a View public void createPartControl(Composite parent) { EntityManagerFactory emf = Persistence.createEntityManagerFactory("$objectdb/db/pilots.odb"); I get the following |
8 | Extended mapping-definitions. You can also use composite indexes that consist of the className field with other fields in order to retrieve |
8 | ObjectDB Clustering VS Hadoop Hbase larger databases, but that will come with a price tag of slower performance. In using composite urls |
2 | Automatic Switch to Replicated Server LimitationsObjectDB supports master-slave replication, with the ability to switch connections automatically to another server when a server goes down, by specifying a composite url. Currently this feature has the following limitations: The first server in the composite url has to be available when connecting |
1 | javax.servlet.ServletException: Annotated methods must follow the JavaBeans naming convention. __odbHidden_getPropertyName and a "secondary" h:form in the sidebar (see FYI only attached XHTML composite expertise_level.xhtml |
1 | ObjectDB 2.6.1Added an option to disable temporary file deletion. Added support of using entity classes with missing dependent types. Added support of composite indexes with components of different lengths. Fixed a bug in reflection mode in detecting changes after flush (issue #1602). Fixed |
1 | ObjectDB 2.3.2Fixed a bug in "p.id IN :ids" queries. Fixed a bug in handling NOT = queries (issue #536). Fixed ClassCastException and NullPointerException in using a composite index in queries (issue #531). Fixed Explorer bugs: editing embedded objects and using connection urls. Fixed a NullPointerException |
1 | ObjectDB needs "insert ignore" (see this page). Use an ID class or an embedded ID as the second parameter if you have a composite primary |
1 | Threaded Test - Failed to commit transaction: Unexpected internal exception with a composite index that contains both priority and creationTime (in the same index). If the sort |
