Internal Website Search

selective update does not work

Multiple joins did not return expected result

Maven not OK for objectDB

not possible to add an existing object to an array via explorer

are fields that do not participate in persistence and their values are never stored in the database (similar to transient fields in Java that do not participate in serialization). Static and final ... EntityWithTransientFields { static int transient1; // not persistent because of static final

> NOT ! as part of its JDO support. Unary NOT (!) Operator The following query retrieves all the countries whose population does not exceed a specified limit:

the database. The retrieval of objects does not require an active transaction because it does not change ... object is not found in the persistence context a new object is constructed and filled with data ... to Employee is not required because

. IS [NOT] EMPTY The IS [NOT] EMPTY operator checks whether a specified collection is empty or not. For example:FALSE otherwise. c.languages IS NOT EMPTY is FALSE

> Some JVM arguments can be useful. For instance, by default Java does not use more than 64MB ... would not be found by explorer.exe. By default, running explorer.exe is equivalent to the following ... the copy and use it to start Explorer. In this way, the edited script will not be deleted

. We start with the HelloWorld sample program, which is not JDO portable because it uses some ... } 22 catch (JDOException x) { 23 // If not found - construct ... does not exist in that path, a new database file is created automatically. To enable updating