new ModelChangeMonitor(adapter)
- Source:
Checks for changes in the K4Model nodes. Emits events to indicate which device nodes have changed.
Parameters:
| Name | Type | Description |
|---|---|---|
adapter |
Adapter |
Members
(static) constants
- Source:
Properties:
| Name | Type | Description |
|---|---|---|
constants |
Object |
Methods
cacheCurrentDeviceModelNode(devicePath)
- Source:
Adds the current device model to the cache.
Parameters:
| Name | Type | Description |
|---|---|---|
devicePath |
String | Path to the K4Model node for the device |
checkWhichModelFieldsHaveChanged(oldDeviceNodeObj, currentDeviceNodeObj, modelFieldsToCompareopt) → {Array.<String>}
- Source:
Determine which fields are actually different between two instances of a device node.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
oldDeviceNodeObj |
Object | The previous state of the model node for a device. |
|
currentDeviceNodeObj |
Object | The current state of the model node for a device. |
|
modelFieldsToCompare |
Array.<String> |
<optional> |
The potential model fields that could have changed. |
Returns:
The list of model fields which have actually changed
- Type
- Array.<String>
close()
- Source:
close Tear down method: unsubscribe device model change listeners and clear device model cache.
identifyDevicesInCacheNotOnBridge() → {Array.<Object>}
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Find devices that there is a snapshot for, but do not exist on the bridge currently
Returns:
- Type
- Array.<Object>
identifyDevicesOnBridgeNotInCache() → {Array.<Object>}
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Find devices that exist on the bridge, but do not yet have a snapshot for
Returns:
- Type
- Array.<Object>
identifyDevicesWithChangedNodes() → {Array.<Object>}
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Compare last known snapshots of device nodes with the current state-of-things, and indicate what has changed
Returns:
- Type
- Array.<Object>
init()
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Set up K4Model change listeners and initialize model cache.
pruneDeviceNodesCache()
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Removes cache of devices nodes that no longer exist on the bridge.
removeAdapterDevicesChangeListener()
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Unregisters listener to Adapter mapping change events
setupAdapterDevicesChangeListener()
- Source:
Creates an EventListener to monitor changes to the device nodes list
uncacheDeviceModel(devicePath)
- Source:
Removes the current device model from the cache.
Parameters:
| Name | Type | Description |
|---|---|---|
devicePath |
String | Path to the K4Model node for the device |