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The Stock List Demo shows
the streaming of real-time market data. The stock prices
are generated randomly by a Lightstreamer Server located
in Italy.
Different versions of this demo are available. They are
described below and can be run by clicking the buttons
to the right.
In all the cases, if you open
the same demo in different browser windows you will see
slightly different values for the most updated stocks
(e.g. "Ations Europe"). This behavior shows how the data
resampling is done in real-time on a per-window basis (see
the explanation of the streaming charts below).
Standard Demo:
Click on
the stock names to open pop-up windows that display
real-time streaming charts.
Notice that the maximum update frequency set for the pop-up windows is
greater than the frequency set for the main window. The
data is resampled by Lightstreamer Server accordingly
with the maximum frequency requested by each table. You
can easily notice that if you open "Ations Europe". A
single stream connection is opened and the updates for
alle the windows are multiplexed into a single flow.
Click on the link under the table (NEXT/PREVIOUS
15) to dynamically switch
between two lists of fifteen symbols without losing
previously opened pop-ups.
Fading Demo:
The same as Standard Demo, but a fade-out graphic effect
on cell highlighting is used.
Advanced Demo:
Provides two slider controls to dynamically change some
parameters of the demo.
The Bandwidth Limit slider permits to change the
maximum bandwidth between 0.5
and 5.0 kilobits per second. Move the slider to see how
Lightstreamer Server merges events and reduces the
update frequency in order to respect the bandwidth limit.
The Highlight Color slider permits to change the
background color of the updated cells (use the red,
green and blue handles).
Grid Demo:
Shows a dynamic GRID built on the top of
Lightstreamer visual tables (OverwriteTables).
Secure Demo:
The same as Standard Demo, but based on HTTPS to show the
capability of Lightstreamer Server to push data over an
encrypted channel.
Basic Demo: A
version of the Standard Demo that is compatible with old-generation
browsers too, such as Netscape 4.7 and IE 4.0. |