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Google App Engine Development Java, Data Models, and Other Things You Should Know Navin Kumar Socialwok
Introduction to Google App Engine ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Java Support on Google App Engine ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Eclipse Support and GWT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Google Plugin for Eclipse (GWT and AppEngine)
BigTable: Behind Google's Datastore ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Models ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Defining Your Data Model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Creating, Deleting, and Querying  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Relationships ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Other APIs you should be aware ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
And now for the fun stuff...  
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 1: Utilization of Memcache ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 1 (cont.) Solution: Memcache ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 1: Memcache conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 2: Message Delivery Fanout ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 2 (cont.): RDBMS version 2 Primary Tables 2 Join Tables ,[object Object],[object Object],[object Object],User ID Name 1 Navin 2 John 3 Vikram Message ID Message User ID 1 Hello world 1 2 Another message 3 Follower ID Following ID 1 2 1 3 2 1 Recipient ID Message ID 1 34 1 67
Lesson 2: List Properties to the Rescue ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],values Index key=1,values=1 key=2,values=2 key=2,values=1
Lesson 2: Our new data definition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 3: Keys-only Queries and AppEngine Key Structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 3: A solution to our Serialization Problem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 3 (contd.): Solution (Data Def.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lesson 3 (contd): Solution (Querying) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Cool Trick: Lite Full Text Search ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
How do we build it ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Live example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
How it works. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Q & A

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Talk 1: Google App Engine Development: Java, Data Models, and other things you should know (Navin Kumar, CTO of Socialwok.com)

  • 1. Google App Engine Development Java, Data Models, and Other Things You Should Know Navin Kumar Socialwok
  • 2.
  • 3.
  • 4.
  • 5. Google Plugin for Eclipse (GWT and AppEngine)
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12. And now for the fun stuff...  
  • 13.
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  • 16.
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  • 18.
  • 19.
  • 20.
  • 21.
  • 22.
  • 23.
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  • 25.
  • 26.
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  • 28.
  • 29.
  • 30. Q & A

Notas del editor

  1. An update of a entity occurs in a transaction that is retried a fixed number of times if other processes are trying to update the same entity simultaneously. Your application can execute multiple datastore operations in a single transaction which either all succeed or all fail, ensuring the integrity of your data.
  2. Before this slide, switch to application.