• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Junilu Lacar
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • Jeanne Boyarsky
  • Rob Spoor
  • Bear Bibeault
Saloon Keepers:
  • Tim Moores
  • Tim Holloway
  • Piet Souris
  • Carey Brown
  • Stephan van Hulst
Bartenders:
  • Frits Walraven
  • fred rosenberger
  • salvin francis

Is primary Key class must?

 
Greenhorn
Posts: 14
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Is it a must to define Primary Key class for every entity bean, can I not have the same as String, if so means how can i specify in jetace tool that this field is the primary key field, no option is there in the tool. if I am able to do the same thro' string means how can i define the query for find by primary key, is I have to define any FindByHelper class.
Is it possible to define a find method that returns a Collection object instead of Enumeration.
 
Ranch Hand
Posts: 184
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Yes it is possible to have primary key as String, its there in the specification also if u see that, i havent used jetace, i used Vajava so i cant tell about that, but it sure is possible to use serializable java classes for primary keys.
 
Without deviation from the norm, progress is not possible - Zappa. Tiny ad:
Thread Boost feature
https://coderanch.com/t/674455/Thread-Boost-feature
reply
    Bookmark Topic Watch Topic
  • New Topic