array of ANY possible?

[ConvertFromOldNGs]

by CarlRanson >> Mon, 7 Jan 2002 20:57:03 GMT

Does anyone know a way to setup and array of ANY?

It seems to be impossible.
Cheers,
CR

[ConvertFromOldNGs]

by nik >> Tue, 8 Jan 2002 10:14:49 GMT

Does anyone know a way to setup and array of ANY?

It seems to be impossible.

Carl,

You can't currently define an Array with a member type Any (I have heard there is a plot underway to support variable length String, Binary and Any arrays in a future JADE release, but don't tell anyone).

An alternative you can use today is to setup an array of 'container objects' to store the any values.

The attached sample schema demonstrates an implementation of Variant and VariantArray classes. The Variant class is used to contain an attribute of type Any. This indirection mechanism is also a good way to store arbitrary length string and binary data since JADE currently only supports fixed element size arrays.


Happy New Year
bok

[ConvertFromOldNGs]

by CarlRanson >> Tue, 8 Jan 2002 22:18:27 GMT

In my version of jade at least (5.1.07) it doesn't seem possible to add an attribute of type Any. Did this become possible in a later version of Jade?

btw, your attachment didn't seem to make it to the newsgroup

Thanks,
CR

[ConvertFromOldNGs]

by CarlRanson >> Wed, 9 Jan 2002 1:47:11 GMT

No worries, ive got the gist of it now.

Thanks, bok.
CR

[ConvertFromOldNGs]

by pfitchett >> Mon, 14 Jan 2002 4:45:24 GMT

btw, your attachment didn't seem to make it to the newsgroup

That seems to be a quirk of the new JADE news server - as far as I can tell attachments are not provided via the nntp interface. If you view the news groups via the web interface it provides a url link to the attachment.

Attachments now make the round trip using the nntp interface - a couple of small inconsistencies with software from our benevolent software supplier (no names, ...). Unfortunately, some attachments received in the last few months may be corrupted, with intermittent lost data. Please let us know if you notice any.

[ConvertFromOldNGs]

by cnwdad1 >> Sun, 13 Jan 2002 2:03:44 GMT

For those who use CardSchema, it has an implementation of this in the form of the CnVariant (and CnVariantArray) class.

darrell.