EJB 3.0 Database Persistence with Oracle Fusion Middleware by Deepak Vohra

By Deepak Vohra

This can be a sensible, tutorial-style booklet that incorporates many examples that show find out how to increase EJB 3.0 database endurance functions with Oracle Fusion Middleware 11g. each bankruptcy starts off with atmosphere the surroundings for the bankruptcy and comprises an instance software illustrated with figures at milestone levels. This booklet is aimed toward EJB 3.0 program builders who are looking to know about the sensible use of EJB 3.0 database endurance with Oracle Fusion Middleware. those who find themselves already utilizing EJB 3.0 database patience will know about utilizing EJB 3.0 database patience with Oracle Fusion Middleware 11g. the objective viewers is predicted to have a few earlier wisdom approximately Java EE, EJBs, EJB 3.0, JSF, AJAX, internet prone, and XML. This e-book is perfect for these builders who've operating wisdom of JDeveloper and WebLogic server, and want to profit concerning the sensible use of EJB 3.0 with Oracle Fusion Middleware

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Example text

Xml deployment descriptor, which is packaged in the META-INF directory of an entity bean JAR file. xml file is persistence, which has one or more persistence-unit sub-elements. The persistence-unit element consists of the name and transaction-type attributes and subelements description, provider, jta-data-source, non-jta-data-source, mapping-file, jar-file, class, exclude-unlisted-classes, and properties. Only the name attribute is required; the other attributes and subelements are optional. The jtadata-source and non-jta-data-source are used to specify the global JNDI name of the data source to be used by the persistence provider.

42 ] Chapter 2 The XSLT Settings wizard is displayed only the first time an XSLT stylesheet is run. For subsequent runs of the stylesheet or running other stylesheets, the input XML document and the output file are required to be configured in the Project Properties window. Select Run/Debug/Profile in Project Properties, select the Run Configuration | Default, and click on Edit. In the Edit Run Configuration window, select Launch Settings | XSLT. Specify the Input XML File and the Output File and click on OK.

Saves an entity bean instance in the database. The persist method returns the entity bean that is persisted in the database. createNamedQuery(String queryName) [ 47 ] Creates a @NamedQuery query. 0 Entity A stateless session bean class is annotated with the @Stateless annotation. In the session bean class, an entity bean is created with the create() method. 0 specification; the method naming in the session bean façade may be modified. The persist() method of the EntityManager class saves a new entity in the database.

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