Package com.lightstreamer.interfaces.data

Interface Summary

Interface	Description
DataProvider	Provides an interface to be implemented by a Data Adapter in order to attach a Data Provider to Lightstreamer Kernel.
IndexedItemEvent	Provides to the Data Adapter an alternative interface for creating ItemEvents in order to send updates to Lightstreamer Kernel.
ItemEvent	Provides to the Data Adapter a base interface for creating ItemEvents in order to send updates to Lightstreamer Kernel.
ItemEventListener	Used by Lightstreamer Kernel to receive the ItemEvents and any asynchronous severe error notification from the Data Adapter.
OldItemEvent	Provides to the Data Adapter a special interface for creating ItemEvents in order to send updates to Lightstreamer Kernel.
SmartDataProvider	Provides an extended interface to be implemented by a Data Adapter in order to attach a Data Provider to Lightstreamer Kernel.

Exception Summary

Exception	Description
DataProviderException	Thrown by the init method in DataProvider if there is some problem that prevents the correct behavior of the Data Adapter.
FailureException	Thrown by the subscribe and unsubscribe methods in DataProvider if the method execution has caused a severe problem that can compromise future operation of the Data Adapter.
SubscriptionException	Thrown by the subscribe and unsubscribe methods in DataProvider if the request cannot be satisfied.