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More Productivitiy with Spring Roo

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Talk from WJAX 2010 about Roo. Includes videos about Roo and Spring Insight (German).

Talk from WJAX 2010 about Roo. Includes videos about Roo and Spring Insight (German).

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  • 1. Produk've  Entwicklung   mit  Spring  Roo   Eberhard Wolff SpringSource – A division of VMware
  • 2. About  Eberhard  Wolff   •  Principal  Technologist   •  Consultant  &  Trainer   •  Author  (e.g.  first  German  Spring  book)   •  ewolff@vmware.com   •  TwiGer:  @ewolff   •  Blog:  hGp://ewolff.com   •  hGp://slideshare.net/ewolff  
  • 3. Spring's  Mission  
  • 4. #1  :  J2EE  should  be  easier  to  use  
  • 5. Mission  Accomplished!  
  • 6. How  can  we  make  live  even   easier?  
  • 7. We  need  to  improve  in  other   areas.  
  • 8. Build  
  • 9. Raise  the  level  of  abstrac'on  
  • 10. We  mostly  create  domain   models  +  logic  working  on  it  
  • 11. Development  tool  
  • 12. Roo  
  • 13. "Roo's mission is to fundamentally and sustainably improve Java developer productivity without compromising engineering integrity or flexibility" Roo's  Mission  Statement  
  • 14. "Roo is a little genie who sits in the background and handles the things I don't want to worry about" End  User  
  • 15. "Roo is a like a text adventures of the 80ies – it even gives you hints!"
  • 16. Demo  Time!    
  • 17. You  saw…   •  Domain  objects   •  Finder   •  MVC  support   •  Web  applica'on  customiza'on   •  Embedding  TwiGer/Google  Docs  etc.   •  I18n   •  Security   •  You  can  add  your  own  code  
  • 18. Not  shown   •  Database  reverse  engineering   •  JSON   •  GWT  support   •  SOLR  support  (search)   •  Spring  Web  Flow  support   •  SELENIUM  web  tests   •  Google  App  Engine  Support  
  • 19. Roo  Benefits   •  Proven  language,  tooling,  libraries  …   •  No  run'me  overhead   •  Can  be  removed  from  project  (Inter  type   declara'on  push  in)   •  Can  also  be  used  from  the  shell  (with  vi  or  Emacs)   •  Extensions  possible  
  • 20. Roo Infrastructure Implementa'on  Overview   User's Project .aj .xml .jsp .properties Roo Add-Ons Roo Add-Ons Roo Add-Ons @Roo Annotations provide source only retention .java monitor and change Roo Add-Ons STS Shell
  • 21. AspectJ ITDs Ac've  Genera'on   Person_Roo_ ToString.aj toString():String Person.java name:String write Person_Roo_ JavaBean.aj getName():String setName(String):void readRoo Add-Ons Roo Add-Ons Roo Add-Ons Roo Add-Ons Person.class name:String toString():String getName():String setName(String):void AspectJ Compiler read read writeCompilation unit separation with automated round-trips
  • 22. Add  ons   •  May  add  commands   •  May  add  ITDs  or  other  files   •  Can  be  ac'vated  if  changes  occur   •  Metadata  events  send  out  
  • 23. Removing  Roo  in  Three  Steps   1  Use  AJDT's  “push-­‐in  refactoring”  feature   – This  moves  the  Roo  .aj  content  into  normal  .java  files   2  Remove  Roo's  annota'on  JAR  from  your  POM   – You  can  use  Roo's  “dependency  remove”  command   3  Remove  @Roo*  annota'ons  from  .java  files   – Use  a  regular  exp  find/replace  in  Eclipse  for  speed   •  You  can  s'll  use  Roo  on  the  project  again   – Its  “hands  off  by  default”  will  ensure  it's  problem-­‐free  
  • 24. springsource.org/roo  
  • 25. Full  visibility  in  the  performance   for  each  Request  
  • 26. Spring  Beans,   Transac'ons,   SQL,   HTTP  …  
  • 27. 2  Steps  
  • 28. #1  Deploy  applica'on  on  tc   Server  developer  edi'on  
  • 29. #2  Go  to   localhost:8080/insight  
  • 30. Demo  Time!   hGp://www.youtube.com/    watch?v=P_EskssNDU8  
  • 31. How  it  fits  in  our  strategy  
  • 32. A  division  of  VMware   Lightweight   App  Run'me   Virtual  App   Environment   Hybrid   Cloud   Spring   tc  Server   VM   Spring   tc  Server   Lightweight   App  Framework  
  • 33. Conclusion   •  Roo  is  based  on  established  technologies   •  Spring,  AspectJ,  JPA…   •  ITDs  separate  clearly  generated  from  non-­‐ generated  code   •  Tackles  build,  development  tool  etc   •  Flexible  architecture:  You  can  add  your  own  add   ons   •  And:  Spring  Insight  can  be  used  for  performance   op'miza'on  of  Spring  Apps  
  • 34. The  Approach  Revisited   •  You  do  the  domain  model  –  Roo  does  the  rest     •  Opinionated:  Sensible  defaults   •  No  lock  in   – Source  level  annota'ons   – Push  In  refactoring  can  be  used  to  eliminate  Roo   •  You  have  nothing  to  loose  –  much  to  gain!