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JPA Entity Fields implementations, such as Hibernate, using property access may have some performance benefits | |
Storing JPA Entity Objects objects can also be performed by multiple transactions: em. | |
FROM clause (JPQL / Criteria API). But this feature could also cause performance problems. For example, let's look at the following | |
JPA / JDO Class Enhancer ObjectDB Enhancer is a post compilation tool that improves performance by modifying the byte code of compiled classes after compilation. Enhancement is mainly for user-defined persistable classes (entity classes, | |
Obtaining a JPA Database Connection should only be performed within an active transaction. Given an | |
Step 4: Add a Servlet Class { doGet(request, response); } } GuestServlet performs | |
Step 3: Add a Context Listener Class>ServletContextListener to perform initialization and cleanup operations: | |
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 node (in the [Projects] window), selecting New > | |
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 clicking the guest package node (in the [Projects |