July 2012
Intermediate to advanced
496 pages
17h 50m
Polish
Content preview from Tomcat. Przewodnik encyklopedyczny. Wydanie IIBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Elementy ejb-ref i ejb-local-ref
Enterprise JavaBeans to kolejny mechanizm specyfikacji Java EE, mający za zadanie zapewnienie struktury służącej do tworzenia i stosowania składników Java w celu zagwarantowania dużym firmom możliwości dostępu do baz danych i możliwości przetwarzania ich. Elementy ejb-ref i ejb-local-ref są używane, gdy serwlety i strony JSP wymagają dostępu do składników Enterprise JavaBean.
Element local jest używany, gdy serwlet i składnik EJB uruchomiono w obrębie jednej wirtualnej maszyny Java. Poniższe przykłady pobrano z aplikacji WWW o nazwie examples dołączonej do serwera Tomcat.
<!-- Odwołanie do składnika EJB --> <ejb-ref> <description>Example EJB Reference</description> <ejb-ref-name>ejb/Account</ejb-ref-name> <ejb-ref-type>Entity</ejb-ref-type> ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.