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Alternativa pentru implementarea modelului “replicated workers”  î n sisteme distribuite: JavaSpaces 07.06.09 JavaSpaces – Dumitrache Mihai - Marian Dumitrache Mihai – Marian Grupa 332CC [email_address]
Voi vorbi despre ... ,[object Object],[object Object],07.06.09 JavaSpaces – Dumitrache Mihai - Marian
1. JavaSpaces este ... 07.06.09 JavaSpaces – Dumitrache Mihai - Marian
07.06.09 JavaSpaces – Dumitrache Mihai - Marian ,[object Object],[object Object],[object Object],[object Object]
07.06.09 JavaSpaces – Dumitrache Mihai - Marian ,[object Object],[object Object]
Metode utile aplicaţiilor 07.06.09 JavaSpaces – Dumitrache Mihai - Marian ,[object Object],[object Object],[object Object]
Memoriile comune în JavaSpaces  07.06.09 JavaSpaces – Dumitrache Mihai - Marian ,[object Object],[object Object],[object Object]
Reguli pentru obiectele JavaSpaces 07.06.09 JavaSpaces – Dumitrache Mihai - Marian import net.jini.core.entry.Entry; public class Message implements Entry  { public String content; public Message() { } } ,[object Object],[object Object],[object Object],[object Object],[object Object]
2. “Replicated workers” folosind JavaSpaces 07.06.09 JavaSpaces – Dumitrache Mihai - Marian
07.06.09 JavaSpaces – Dumitrache Mihai - Marian ,[object Object],[object Object],[object Object],[object Object]
Exemplu de program folosind JavaSpaces 07.06.09 JavaSpaces – Dumitrache Mihai - Marian Jini framework http://www.jini.org/wiki/Main_Page import net.jini.space.JavaSpace; public class SpaceReader   { public static void main(String argv[]){ MessageEntry msg = new MessageEntry(); Lookup finder = new Lookup(JavaSpace.class); JavaSpace space = (JavaSpace) finder.getService(); MessageEntry template = new MessageEntry(); MessageEntry result = space.read(template, null, Long.MAX_VALUE); System.out.println("The message is: "+result.content); }   } Writer:   MessageEntry msg = new MessageEntry(); msg.content = "Hello reader"; Lookup finder = new Lookup(JavaSpace.class); JavaSpace space = (JavaSpace) finder.getService(); space.write(msg, null, 60*60*1000);
07.06.09 JavaSpaces – Dumitrache Mihai - Marian Întrebări ?

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Prezentare Apd Java Spaces

  • 1. Alternativa pentru implementarea modelului “replicated workers” î n sisteme distribuite: JavaSpaces 07.06.09 JavaSpaces – Dumitrache Mihai - Marian Dumitrache Mihai – Marian Grupa 332CC [email_address]
  • 2.
  • 3. 1. JavaSpaces este ... 07.06.09 JavaSpaces – Dumitrache Mihai - Marian
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9. 2. “Replicated workers” folosind JavaSpaces 07.06.09 JavaSpaces – Dumitrache Mihai - Marian
  • 10.
  • 11. Exemplu de program folosind JavaSpaces 07.06.09 JavaSpaces – Dumitrache Mihai - Marian Jini framework http://www.jini.org/wiki/Main_Page import net.jini.space.JavaSpace; public class SpaceReader { public static void main(String argv[]){ MessageEntry msg = new MessageEntry(); Lookup finder = new Lookup(JavaSpace.class); JavaSpace space = (JavaSpace) finder.getService(); MessageEntry template = new MessageEntry(); MessageEntry result = space.read(template, null, Long.MAX_VALUE); System.out.println("The message is: "+result.content); } } Writer: MessageEntry msg = new MessageEntry(); msg.content = "Hello reader"; Lookup finder = new Lookup(JavaSpace.class); JavaSpace space = (JavaSpace) finder.getService(); space.write(msg, null, 60*60*1000);
  • 12. 07.06.09 JavaSpaces – Dumitrache Mihai - Marian Întrebări ?