[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]
Tag interface for data window views. Data window views follow the view interface but keep a window over the
data received by their parent view. Data window view may keep length windows or time windows or other windows.
Data window views generally follow the following behavior:
They publish the data that was received as new data from their parent view directly as
new data to child views.
They publish the data that expires out of the window (for length or time reasons or other reasons) as old data to
their child views.
They remove the data they receive as old data from their parent view out of the window and report the data
removed as old data to child views.
Certain views may decide to attach only to data window views directly. One reason for this is that
window limit the number of event instances kept in a collection. Without this limitation some views may
not work correctly over time as events accumulate but are not removed from the view by means old data updates
received from a parent data window.
The following tables list the members exposed by the DataWindowView type.
Public Properties
Name | Description | |
---|---|---|
![]() | EventType | Provides metadata information about the type of object the event collection contains. (Inherited from EventCollection.) |
![]() | HasViews | Test is there are any views to the Viewable. (Inherited from Viewable.) |
![]() | Id |
Gets a unique id for the view.
(Inherited from View.) |
![]() | Parent | Gets or sets the View's parent Viewable. (Inherited from View.) |