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GWT

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  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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GWT

  1. 1. Google Webtool Kit Übersicht
  2. 2. Was ist GWT?GWT ist ein Framework für AJAX-Anwendungen, welches denEntwickler in die Lage versetzt, Rich Internet Applications in Java zu entwickeln.Der GWT-Compiler generiert aus dem Java Codeden spezifischen HTML- und JavaScript Code für diejeweiligen Browser.
  3. 3. Warum AJAX?
  4. 4. Warum AJAX?
  5. 5. Finde den Fehler
  6. 6. Fehler gefunden
  7. 7. JavaScript = Schmerz...cross-browser...memory leak...loading latency...bugs (dynamic language)...security
  8. 8. Von Java zu JavaScript
  9. 9. Von Java zu JavaScriptJava Code:GWT compiler (-style PRETTY)GWT compiler (-style OBFUSCATED)
  10. 10. FeaturesUser InterfacesHistory ManagementLokalisierungClient/Server-KommunikationJavaScript Native InterfaceUnit TestingOptimization
  11. 11. User Interfaces GWT GWT Incubator _________________________________ SmartGWT GWT-Ext Ext-GWT und viele mehr...
  12. 12. Aufbau UI mit Code
  13. 13. Aufbau UI mit UIBinder
  14. 14. Styling mit CSS
  15. 15. Styling mit CSS
  16. 16. History ManagementAJAX-Anwendungen verwenden meistens keineBrowser History (==> Frust).Demo
  17. 17. LokalisierungConstants    helloWorld = Hallo, WeltMessages    goodBye = Adios, {0}Plural    @DefaultText(...)    @PluralText(...)UIBinder Support <ui:msg description="helloWorld">Hello, world.</ui:msg></div>Demo
  18. 18. Client/Server Kommunikation
  19. 19. HTTP-Requestsz.B.: PHP als Backend und XML, JSONoder ein eigenes Format.
  20. 20. GWT-RPCWarum nicht eine Sprache sprechen?
  21. 21. JavaScript Native InterfaceJava Methode direkt in JavaScript implementieren.Auf Java Members/Methoden zugreifen.Parameter zwischen Java und JavaScript übergeben.--> Einbindung von (bestehenden) JavaScript Libs
  22. 22. Unit TestingGWTTestCase für die ViewsJUnit für Presenter und ModelSelenium
  23. 23. OptimierungDelayed LogicCode SplittingClientBundle
  24. 24. ToolsEclipse PluginGWT DesignerSpeed Tracer
  25. 25. GWT Designer
  26. 26. Warum mit Java entwickeln?
  27. 27. VorteileClient und Server können eine Sprache verwenden(GWTRPC).Java Entwickler Tools (Eclipse, PMD, JUnit etc).Debugging UmgebungCross-Browser-Support
  28. 28. NachteileGoogle behält sich vor die Lizenzbestimmungen des GWT-Compilers zu ändern.Widgets teilweise sehr groß(bis zu 55k pro Widget).Es wird nur ein Teil der Java APIemuliert.
  29. 29. Größe der Komponenten
  30. 30. Fragen ?
  31. 31. Google App EngineWeb Application Hosting Service
  32. 32. Google Infrastrukturautomatische und beliebige Skalierung von WebApps
  33. 33. Development Tools• Java SDK o Servlet Container• Python SDK o CGI Runtime Environment• Google Eclipse Plugin o One-Click-Deployment o Simulation aller Services in lokaler Sandbox o Leistungsfähiger Debugger
  34. 34. Google Datastore• Bigtable (Object Database)• Google Earth, Google Finance, Google Search
  35. 35. Keine relationale Datenbank Umdenken notwendig
  36. 36. Queries• OOP / Sql-like Syntax• Schnelle Zugriffe bei Selects auf den KEY• Automatische Index-Erzeugung o XML basierte Konfiguration o Google weiß im Voraus welche Queries angefragt werden können o Beim Schreiben werden Indexe automatisch aktualisiert
  37. 37. Bulk-Loader• Python-Script• Upload / Downloading Data• Backups
  38. 38. Einschränkungen• Indexerzeugung beim deployen kostet Zeit• Kein bulk-delete oder Massen-lesen / -schreiben
  39. 39. Standards: JDO / JPA / Annotations
  40. 40. Standards: JDO / JPA / Annotations
  41. 41. Kosten
  42. 42. • automatische Skalierung• Konzentration auf Gamelogik• kürzere Entwicklungszeiten• kein administrativer Overhead• keine Betriebskosten solange App kein Erfolg• IDE (Build, Deploy, Sandbox integriert)• perfektes Zusammenspiel mit GWT
  43. 43. • Keine long running background processes• Kein Streaming• Kein FTP, Sockets ...• Datastore: Keine Volltext-Suche• max. 30 sec/req• max 10 MB/req• max. 3.000 Dateien (Workaroudns ZIP, JAR)• hohe Abhänigkeit von Google-Services
  44. 44. Fragen ?
  45. 45. Deferred Binding

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