24 | JPA query of a Set of terms? For example, suppose I have a table that maps a search terms to pages: @Entity public class SearchIndex { @Index SearchTerm term; @Index Page page; } Now suppose I have an array ... that are already persisted. em.createQuery( "SELECT DISTINCT si.page FROM SearchIndex si |
22 | Soft Reference Object Cache Recommendation and use 1 MB for the ObjectDB Datastore page file cache with page file size of 64 KB. Here are relevant objectdb.conf settings: <size initial="64kb" resize="64kb" page="64kb" /> <processing cache ... datastore page file cache keeping strong references to the pages that comprise the data of the byte |
9 | Chapter 3 - Using JPAThis chapter explains how to manage ObjectDB databases using the Java Persistence API (JPA). The first two pages introduce basic JPA interfaces and concepts: The next section explains how to use JPA for database CRUD operations: More advanced topics (e.g. locking and events) are discussed in the last section: |
9 | Shared (L2) Entity Cache on the client side - ObjectDB manages also several caches on the server side: Cache of database file pages |
9 | Chapter 6 - Configuration> </objectdb> Each one of these seven configuration elements is explained in a separate section: This page |
9 | ObjectDB Website - Terms and Conditions of Use are under other licenses. See the Credits and Attributions page. 3. Disclaimer The materials on ObjectDB |
9 | JPA Primary Key continuously and can be collected by accessing a minimum number of database pages. On the other end |
6 | Unexpected exception (Error 990) on find 850977) [2] Unexpected total page count: 206592 (expected 206563) BTree Value Errors ... ) Page Relation Errors -------------------- [1] Page #96658 unexpected exception: null [2] Page #96658 last key is null, parent page #144908 next key is 'Elementarprodukt:400000100465140:7:1:' [3 |
1 | NetBeans/JPA Java EE TutorialThis is the NetBeans version of the Java EE JPA tutorial. It demonstrates how to create and run a full Java EE 6 MVC (Model View Controller) web application in NetBeans - using GlassFish, ObjectDB and JPA. The demo web application manages a basic guestbook page. Every visitor can sign the guestbook |
1 | Step 3: Add a Context Listener Class and the database - when the application stops (contextDestroyed). The next step is adding a servlet class that will manage the guestbook page. |
