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Tutorial
11

Step 4: Add a Servlet Class

. All the Guest entity objects are retrieved from the database and stored in the request's "guest
Tutorial
11

Step 4: Create an ObjectDB Data Set

contains Point entity objects. We will use a simple JPQL query that retrieves points with x value in
Tutorial
11

Step 5: Add a JSP Page

the guestbook, followed by a list of all the guests that have already signed (which are retrieved from
Tutorial
11

Step 5: Add a JSP Page

that have already signed (which are retrieved from the request's "guests" attribute that is set by
Tutorial
11

Step 5: Add a JSP Page

for signing the guestbook, followed by a list of all the guests that have already signed (which are retrieved
Tutorial
11

Step 5: Add a JSP Page

that have already signed (which are retrieved from the request's "guests" attribute that is set by
Tutorial
11

Step 5: Add a JSP Page

the guestbook, followed by a list of all the guests that have already signed (which are retrieved from
Tutorial
11

Step 5: Add a JSP Page

that have already signed (which are retrieved from the request's guestDao attribute that is set by the controller in
FAQ
11

What is ObjectDB?

ObjectDB is an Object Oriented Database Management System (ODBMS). It provides all the standard database management services (storage and retrieval, transactions, lock management, query processing, etc.), but it uses an object oriented model to store and manage data. You can easily store ordinary
Manual
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Deleting JPA Entity Objects

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 from the database it has to first be retrieved (no matter which way) and then in an active