6 | Database Doctor is not in the current directory a path to it has to be specified. The tool main class is com.objectdb |
6 | JPA Metamodel APIThe JPA Metamodel API, which is introduced in JPA 2.0, enables examining the classes, fields and properties of the persistent object model, similarly to the Java reflection API. The main interface of the JPA Metamodel API is: Types (mainly classes) and attributes (persistent field and properties |
6 | ObjectDB 2.8 Developer's GuideWelcome to ObjectDB for Java/JPA Developer's Guide. Here you can learn how to develop database applications using ObjectDB and JPA (Java Persistence API). The main purpose of this guide is to make you productive with ObjectDB and JPA in a short time. Guide Structure This manual is divided into |
6 | Database Connection using JPA database connection, using a separate EntityManager instance, for every HTTP request. The main role |
6 | JPA Metamodel APIThe JPA Metamodel API provides the ability to examine the persistent object model and retrieve details on managed classes and persistent fields and properties, similarly to the ability that Java reflection provides for general Java types. The Metamodel Interface The main interface of the JPA |
6 | Paths and Types in JPQL and Criteria API expressions in the above code can be divided into two main groups: FROM variable expressions, represented by |
1 | Step 4: Run the ApplicationYou can now run the application by right clicking the Main.java file (in the [Package Explorer] window) and selecting Run As > Java Application. The expected output in the Eclipse [Console] window, is: Total Points: 1000 Average X: 499.5 (0,0) (1,1) (2,2) (3,3) : : (998,998) (999,999 |
1 | Java EE 6 JPA Tutorial - NetBeans Project the project: Select Run > Run Main Project... (or F6). Choose or define the server and click OK |
1 | Step 2: Entity Class and Persistence Unit that was added to the project (under Other Sources > src/main/resources > META-INF). Open |
1 | Step 5: Add a JSP PageIn this step we will add the JSP that generates the guestbook HTML output: Open the [New JSP File] dialog box by right clicking WEB-INF under src/main/webapp (in the [Package Explorer] window), selecting New > Other... > Web > JSP File and clicking Next. The parent folder should be WEB-INF |
