 11 | ), count(ov) from ObjectView ov group by hour(ov.created) order by hour(ov.created) ASC where ov ... have to group by date(). For few queries I was concatenating 'date' from year()-month()-day() calls ... implementation. There is only one small problem with new version. When you group by date |
11 | ObjectDB ignores lazy setting of non collection mapped by (inverse) fields and loads them always eagerly. This is allowed by JPA since lazy is only hint but it is not efficient. The reason ... , at least as hollow objects. In order to instantiate referenced objects their exact type is needed |
10 | = em.createQuery(
"SELECT g FROM Guest g ORDER BY g.id", Guest.class);
return ... Operations on the database will be performed by an instance of a Data Access Object (DAO) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right |
10 | (
"SELECT g FROM Guest g ORDER BY g.id", Guest.class);
return query ... Operations on the database will be performed by an instance of a Data Access Object (DAO) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right |
10 | of a corrupted ObjectDB database file Repairs a corrupted ObjectDB database file by creating a new ... - if recovery file is disabled. Using the database file simultaneously by two instances of the ObjectDB ... the database file externally not through ObjectDB (e.g. by malicious software such as a computer |
10 | through mapped by to-many relationships. Please check the new build. If you still get the exception we may need a test case that demonstrate the issue in order to explore it further. Thanks, no exception |
10 | declarations separated by commas. Each ordering declaration is the name of the field on which to order ... with a PersistenceManager. Multiple queries might be executed simultaneously by different threads ... , import statements, ordering and grouping specifications, result and result class, the range |
10 | ") specifies if SSL is used. As shown above, SSL is disabled by default. It could be enabled ... . This file is generated from the Keystore file by omitting the private key (it still contains ... of the client machine by the server is also required a Keystore file (which might be different from |
10 | Existing entity objects can be deleted from the database either explicitly by invoking the remove method or implicitly as a result of a cascade operation. Explicit Remove In order to delete an object ... back and not committed the object is not deleted. An IllegalArgumentException is thrown by remove |
9 | order to make the reader proficient in a short time. After reading this guide you may want to extend your knowledge of JPA by reading a book on JPA. ... required in order to follow this guide, but a strong background and understanding of the Java |
