The super constructor of implementors of DataFieldChangedListener.
DataFieldChangedListeners are notified whenever a data field value is changed in the data source.
Methods
-
dataFieldChanged(value, oldValue, tradeData, updateId)
-
Notifies listener that the data field value has changed.
Parameters:
Name Type Description valueString The value that of the field that was changed. oldValueString The value of the field before the data was changed. This value will be undefinedif there was no previous value.tradeDataMap Map of the values changed in this update. updateIdint Identifier that can be used to determine which update batch this notification belongs to.