I’m trying to have in the UI a dropdown with possible selections.
The list of possible selections is not predefined, but instead coming at runtime.
Is there anyway a binding can provide something like that.
e.g. in the sitemap you can define a selection, where the options are coming from the mapping., similar, in the things-type.xml I can define the option values. However, in this case I would like to do it dynamically instead of statically so to show only the possible options that are currently available.
Yes. You need to provide a ConfigurationProvider and intercept the requests for the type. If you take a look in the ZWave source you’ll see what I do. In the ZWaveConfigProvider I add extra parameters to those defined in the XML…
I was trying this approach, indeed it works, but seems to be applying binding wide. Not thing specific.
In zwave binding, the options you create are always for a thingtype. Which indeed works as above.
However, as far as I could understand, the thing itself is not a part of the implemententation of the ConfigDescriptionProvider, ConfigOptionProvider.
Which works well for zwave, as zwave would only support 1 network.
In case zwave binding would serve 2 independent zwave networks besides each other, I think it would be impossible to make for example the associations work, as the 1 controller may have different set of nodes than the other.
So, I would like to have 1 thing type, but depending on the configuration of that specific thing, present different option in the dropdowns.
Do you see a way around this?
Hi Marcel,
No- the options in ZWave are for the thing- not the thingType. If you check the configuration provider, you will find that I filter on thing, and then check the node number - maybe one day I will also need to check the network. This allows me to check the node, and add only options for the specific thing.
The code below checks for the thing -:
if (uri == null) {
return null;
}
if ("thing".equals(uri.getScheme()) == false) {
return null;
}
And then here I check the node -:
// And make sure this is a node because we want to get the id off the end...
if (!thingUID.getId().startsWith("node")) {
return null;
}
int nodeId = Integer.parseInt(thingUID.getId().substring(4));
I get the nodeID and use this to provide thing level options…
