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You are working as an administrator for a company named Coho Vineyard, a national distributor of wines. Diane, a user in the Sales department, calls you on Tuesday morning to report that she cannot connect to any resources on the local network or on the Internet. After verifying that other users in her department can connect to the network, you visit Diane s computer, open the Command Prompt window, and type ipconfig /all. You get the following results: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix Description . . . . . . . . . . . : Intel(R) PRO/1000 CT Physical Address. . . . . . . . . : 1D-03-D2-E2-1A-2C DHCP Enabled. . . . . . . . . . . : Yes IP Address. . . . . . . . . . . . : 169.254.103.52 Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : 1. What do these results tell you

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package persistence; import org.hibernate.*; import org.hibernate.cfg.*; public class HibernateUtil { private static SessionFactory sessionFactory; static { try { sessionFactory=new Configuration() .configure()

Consider regional settings as a possibility when keyboard errors are reported or when users report that symbols do not look correct.

Windows XP Professional provides the ability to configure accessibility options through the Accessibility Options icon in Control Panel.

.buildSessionFactory(); } catch (Throwable ex) { throw new ExceptionInInitializerError(ex); } } public static SessionFactory getSessionFactory() { // Alternatively, you could look up in JNDI here return sessionFactory; } public static void shutdown() { // Close caches and connection pools getSessionFactory().close(); } }

To configure keyboard options, in Control Panel, click Accessibility Options. In the Accessibility Options window, click Accessibility Options to display the Accessibility Options dialog box. The Keyboard tab of the Accessibility Options dialog box, shown

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You create a static initializer block to start up Hibernate; this block is executed by the loader of this class exactly once, on initialization when the class is loaded. The first call of HibernateUtil in the application loads the class, builds the SessionFactory, and sets the static variable at the same time. If a problem occurs, any Exception or Error is wrapped and thrown out of the static block (that s why you catch Throwable). The wrapping in ExceptionInInitializerError is mandatory for static initializers. You ve created this new class in a new package called persistence. In a fully featured Hibernate application, you often need such a package for example, to wrap up your custom persistence layer interceptors and data type converters as part of your infrastructure. Now, whenever you need access to a Hibernate Session in your application, you can get it easily with HibernateUtil.getSessionFactory().openSession(), just as you did earlier in the HelloWorld main application code. You re almost ready to run and test the application. But because you certainly want to know what is going on behind the scenes, you ll first enable logging. Enabling logging and statistics You ve already seen the hibernate.show_sql configuration property. You ll need it continually when you develop software with Hibernate; it enables logging of all generated SQL to the console. You ll use it for troubleshooting, for performance tuning, and to see what s going on. If you also enable hibernate.format_sql, the output is more readable but takes up more screen space. A third option you haven t set so far is hibernate.use_sql_comments it causes Hibernate to put

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As with DHCP, DNS problems often fall outside of the desktop administrator s purview, and might require further escalation to another team.

in Figure 5-17, allows you to configure the keyboard options StickyKeys, FilterKeys, and ToggleKeys.