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Manual
2

Literals in JPQL and Criteria Queries

are more generic and efficient because they can be compiled once and then run many times with different parameter
Tutorial
2

Step 4: Add a Servlet Class

step). The JSP uses the "guest" attribute to generate the page output. Notice that operations
Tutorial
2

Step 3: Add a Main Class

In this step we will add code to the Main class (that was generated with the project) in order to store Point objects in the database and then retrieve them from the database. Use copy and paste to replace the content of the Main class with the following content: package tutorial; import javax
JPA Doc
2

JPA Miscellaneous

This section contains miscellaneous JPA types. The PersistenceUtil and PersistenceUnitUtil interfaces provide general utility methods: The Cache interface and the CacheRetrieveMode and CacheStoreMode enum types serve in managing the EntityManagerFactory's shared (level 2) cache: Other enum types are provided for setting of various JPA operations:
Tutorial
2

Step 2: Entity Class and Persistence Unit

the [Project Explorer] window) and selecting New > Folder (or New > Other... > General > Folder
JPA Doc
2

Criteria Query Expressions

The following interfaces are in use in representing general expressions in criteria queries: See the Query Expressions section for more details and examples.
Manual
2

JPA Metamodel API

The 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
Tutorial
2

Step 4: Add a Servlet Class

the "guest" attribute to generate the page output. Finally, the database connection (including
Tutorial
2

Step 4: Add a Controller Class

(which is presented in the next tutorial step) that generates the HTML output. The JSP uses
Manual
2

JPA Entity Fields

static type, including a generic java.lang.Object, as long as the type of the actual value at runtime