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Step 4: Add a Servlet Class

In this step we will add a servlet to manage guestbook web requests: Open the [New Servlet] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New > Servlet ... : If a new guest has registered (using a JSP form that will be added in the next tutorial step) - a new
48

Step 4: Add a Servlet Class

In this step we will add a servlet to manage guestbook web requests: Open the [Create Servlet] dialog box by right clicking the guest package node (in the [Package Explorer] window), selecting New ... that will be added in the next tutorial step) - a new Guest entity object is constructed and stored in the database
48

Step 4: Add a Controller Class

In this step we will add a Spring Controller to manage guestbook web requests: Open the [New Java Class] dialog box by right clicking the guest package node (in the [Projects] window) and selecting ... is automatically constructed and injected by Spring into the guestDao field (because it is annotated
48

Step 4: Add a Controller Class

In this step we will add a Spring Controller to manage guestbook web requests: Open the [New Java Class] dialog box by right clicking the guest package node (in the [Package Explorer] window ... is automatically constructed and injected by Spring into the guestDao field (because it is annotated
48

Step 4: Add a Servlet Class

In this step we will add a servlet to manage guestbook web requests: Open the [New Servlet] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New > Servlet ... ) is constructed. If a new guest has registered (using a JSP form that is shown in the next tutorial step
48

Step 4: Add a Servlet Class

In this step we will add a servlet to manage guestbook web requests: Open the [Create Servlet] dialog box by right clicking the guest package node (in the [Package Explorer] window), selecting New ... that is shown in the next tutorial step) - a new Guest entity object is constructed and stored in
48

Step 3: Define an EJB Session Bean

Operations on the database will be performed by an instance of a session bean (EJB) class that we will define in this step: Open the [New Session Bean] dialog box by right clicking the guest package ... () { TypedQuery<Guest> query = em.createQuery( "SELECT g FROM Guest g ORDER BY g.id", Guest
48

Step 3: Define an EJB Session Bean

Operations on the database will be performed by an instance of a session bean (EJB) class that we will define in this step: Open the [New Java Class] dialog box by right clicking the guest package ... ORDER BY g.id", Guest.class); return query.getResultList(); } } The GuestDao session
48

Step 3: Define a Spring DAO Component

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 ... every operation that modifies the database (such as persist) by transaction begin and commit. The next step is adding a Controller Class.
48

Step 3: Define a Spring DAO Component

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 ... that modifies the database (such as persist) by transaction begin and commit. The next step is adding a Controller Class.

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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