Repository XML limitation and design question.

[Ajitesh Das]

To all OJB gurus:

  First of all this may not be a limitation on OJB what I have wrote as
subject but it seems that there is no easy way to handle this. 

 

Here is my problem : 

 

 I like to write a repository XML file [ please note a single repository
file for each case] which captures the following conditions : 

 I have a set of Databases/data sources  = { Da, Db , Dc, ...., Dn } 

 

 And I have a set of class-descrptors = 

        { { a1, a2, a3 ....,ax},

          {b1, b2, b3, ....,by},

          :::::::::::::::::::

          {n1, n2, n3, ....,nz}}

 

 I want to map -> 

     Class Descriptors ->{ a1,a2,::::,ax} to be mapped to [Da]

                         { b1,b2,::::,by} to be mapped to [Db]

                         { c1,c2,::::,cw} to be mapped to [Dc]

                           :::::::::::::::::::::::::::

                         { n1,n2,::::,nx} to be mapped to [Dn]

 

Case A:

      Set (a)i and Set (b)j are disjoint.

      That is: any ai != bj where i= 1,2...x

                                  And j= 1,2,...y

Case B: 

      Set (a)i and Set (b)j are intersect each other.

      That is: may be ai == bj where i= 1,2...x

                                  And j= 1,2,...y

 

Has anybody did this before? 

 

If this can not be done in a single repository xml ...is there any way
it can be worked around?

 

Thanks 

  Ajitesh