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Tutorial
8

Step 2: Entity Class and Persistence Unit

name - use exactly that case sensitive package name. Click Next to create the new entity class. In ... in the database was created in the project (under Source Packages > guest). Use copy and paste
Tutorial
8

Step 2: Entity Class and Persistence Unit

name - use exactly that case sensitive package name. Click Next to create the new entity class. In ... the database was created in the project (under Source Packages > guest). Use copy and paste to replace
Tutorial
8

Step 3: Add a Main Class

) { // Open a database connection // (create a new database if it doesn't exist ... (); } } The main method creates an ObjectDB database file, stores 1000 Point objects in the database
Tutorial
8

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 ... GuestServlet as the class name - use exactly that case sensitive class name. Click Finish to create the new
Tutorial
8

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 ... GuestServlet as the class name - use exactly that case sensitive class name. Click Finish to create the new
JPA Doc
7

javax.persistence.criteria.Path

 attributeName) Create a path corresponding to the referenced attribute. Create a path corresponding ... ) Create a path corresponding to the referenced map-valued attribute. Create a path corresponding ... > collection) Create a path corresponding to the referenced collection-valued attribute. Create a path
JPA Doc
7

javax.persistence.EntityManager

. The EntityManager API is used to create and remove persistent entity instances, to find entities by their primary ... - if not an entity Since: JPA 1.0 Query createNamedQuery(String name) Create an instance of Query for executing a named query (in the Java Persistence query language or in native SQL). Create
JPA Doc
7

javax.persistence.criteria.CriteriaQuery

Returns: the modified query. Since: JPA 2.0 Root from(Class entityClass) Create and add a query root corresponding to the given entity, forming a cartesian product with any existing roots. Create ... entity Since: JPA 2.0 Root from(EntityType entity) Create and add a query root corresponding
JPA Doc
6

javax.persistence.criteria.CriteriaBuilder.In

.0 Predicate in(Object... values) Create a predicate to test whether the expression is a member of the argument list. Create a predicate to test whether the expression is a member of the argument list ... Since: JPA 2.0 Predicate in(Collection values) Create a predicate to test whether the expression
JPA Doc
6

javax.persistence.criteria.Predicate

for the predicate Since: JPA 2.0 Predicate in(Object... values) Create a predicate to test whether the expression is a member of the argument list. Create a predicate to test whether the expression is a member ... for membership Since: JPA 2.0 Predicate in(Collection values) Create a predicate to test