Re: cross references

[Kohsuke KAWAGUCHI <kohsuke.kawaguchi@eng.sun.com>]

A part of this problem comes from the fact that we don't have a concept
of "derivation". This cannot be solved by adding <key>/<keyref>.

Say I'm writing a schema for a scientific purpose. I want to use the
float type but I don't want to see INF or NaN because they are
inaccurate as values.


<define name="float.0to100">
  <data type="float">
    <param name="pattern">[0-9.]*</param>   <!-- allow numbers only -->
    <param name="minInclusive">0</param>
    <param name="maxInclusive">100</param>
  </data>
</define>

<define name="float.precision3">
  <data type="float">
    <param name="pattern">[0-9.]*</param>   <!-- allow numbers only -->
    <param name="precision">5</param>
  </data>
</define>

  ...


Another possible example would be, I need to derive a lot of types from
"dateTime" type but I want all of them to have specific time zone (or no
time zone). Now the same problem arises.


regards,
--
Kohsuke KAWAGUCHI                          +1 650 786 0721
Sun Microsystems                   kohsuke.kawaguchi@sun.com