Lightstreamer PCL (Portable Class Library) Client 3.1.0
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Interfaces

The following table lists interfaces in this documentation.

 
Name 
Description 
 
Receives notifications of connection activity and errors.
The notification sequence follows the pattern:
[CE [SS (NB | DE | AW(true) AW(false) )* [AW(true)] [E | F1 | F2] C] ]
where F1 and F2 represent the two versions of OnFailure().
A distinct listener must be used for any distinct connection opened.
All notifications are sent in sequence on a dedicated thread.
 
 
A fully-featured listener interface, which receives notification of data updates and subscription termination for a table.
Upon update of each item, the current and previous state of all fields is provided. If the subscription configuration enables the "COMMAND logic", then the special "key" and "command" fields are determined and the updates are meant as ADD, UPDATE and DELETE commands on the rows of an underlying table, identified by a key value. In this case, the old field values related with an update are referred to the same key.
Both names and positional information are available to identify specific items and... more 
 
Receives notifications of server responses to sent messages. All notifications are sent in sequence on a dedicated thread. 
 
Implemented by Lightstreamer to provide information about an update for a subscribed item. The new and previous values for the subscribed fields are reported.
If the table subscription configuration enables the "COMMAND logic", then the old field values are referred to the same key.
Both names and positional information can be used to identify the specific fields, unless a SimpleTableInfo was used to describe the related table; in that case, only positional information can be used.