Validation of logical element structure

[jvalkeal]

Some elements within hq-plugin.xml which are later referenced needs to be on correct order. For example:
<metrics name="m1"/> <server> <metrics include="m1/> </server>
Metrics definition must be introduced before its included on somewhere else.

• Check what we can validate with relax.
• After xml syntax validation is done, do logical validation.
• Need to create list of these special rules.

[jvalkeal]

This is just an idea, but.... what if we would use two different relax schemas.

One which is used to check overall validity of xml structure. Schema wouldn't contain any strict restrictions what attributes or elements has to exist. This would still give us matching expressions during model creation.

Second schema would contain stricker rules. This schema would only be used after markup is loosely checked. Markers might be easily created following this approach. Since custom checks to model needs a lot of coding, this might give a much shorter road. When markers are created, xml descriptor is parsed on a separate class.

Still we need to do custom checks, thought.... Also overall problem with using strict xml validation is that then xml is not valid and if you go to source page, it doesn't allow you to exit from that page. If attribute is missing, it would be much nicer if you can use form based editor to add it.