FAST WebComponents Version 1.1, 25.10.2001
Component: ValueField Version: 1.3 / 25.10.2001 Author: Richard.Prinz@RISNet.at

This is an example of the ValueField FAST-WebComponent. It displays one Field of a RIC in realtime and optionaly (if available) an up/down tick in either text (+/-) or Graphics form. Use the following code snippet to use it in a Webpage. 

<APPLET name="ValueField" archive="Core.zip,Jep.zip"
    		code="at.RISNet.FAST.WebComponents.ValueField.class" 
    		codebase="http://ActiveFast.RISNet.at/Fast"
    		width="100" height= "20">
  		<PARAM NAME="UpdateURL" VALUE="ActiveFAST.asp">
  		<PARAM NAME="UpdateInterval" VALUE="10"> 
  		<PARAM NAME="Background" VALUE="8080FF"> 
  		<PARAM NAME="Foreground" VALUE="FFFFFF"> 
  		<PARAM NAME="Font" VALUE="Arial"> 
  		<PARAM NAME="FontSize" VALUE="12"> 
  		<PARAM NAME="FontType" VALUE="BOLD"> 
  		<PARAM NAME="Align" VALUE="RIGHT"> 
  		<PARAM NAME="UpDownPosition" VALUE="LEFT"> 
  		<PARAM NAME="UpImageURL" VALUE="up.gif"> 
  		<PARAM NAME="DownImageURL" VALUE="down.gif"> 
  		<PARAM NAME="NullImageURL" VALUE="null.gif"> 
  		<PARAM NAME="EqualImageURL" VALUE="eq.gif"> 
  		<PARAM NAME="RIC" VALUE=".ATX"> 
  		<PARAM NAME="ValueFID" VALUE="TRDPRC_1"> 
  		<PARAM NAME="UpDownFID" VALUE="PRCTCK_1"> 
  		<PARAM NAME="ChangeIndicator" VALUE="YES">
  		<PARAM NAME="onClick" VALUE="http://www.RISNet.at">
  		<PARAM NAME="onClickTarget" VALUE="_blank">
  		<PARAM NAME="Info" VALUE="Austrian Index">
  		<PARAM NAME="LicenseKey" VALUE="Ddj34R-er81fC-Mer15L-oHCx3Q-TR45I2"> 
  		<PARAM NAME="Debug" VALUE="YES"> 
</APPLET> 

The applet can operate in 2 modes: TICK and POLL. In TICK mode a connection to the ActiveFAST server is established and remains open. Every change in either the "ValueFID" or the "UpDownFID" is immediately displayed on screen. In the moment every ActiveFAST WebComponent uses it's own connection to the ActiveFAST server. When there are a lot of WebComponents on a page this can become very inefficient. There will be a multiplexer applet available in the near future, but for the moment dont use a lot of WebComponents in TICK mode on onw page. The PULL mode as the name says pulls new data from the Server in predefined intervals (see the UpdateInterval parameter). This mode is very efective because the connection is closed during the pull cycles. The operation of the component is specified by the two parameters Port and UpdateURL. If Port is specified then the component uses TICK mode, if UpdateURL is specified then PULL mode is used. If no one is specified then TICK mode is used. In the case that both are specified then PULL mode is used. Keep in mind that an applet can only (under normal circumstances) communicate with the server from which it was loaded by the browser. So keep your WebComponents on the ActiveFAST server. A detailed description of the various parameters follows: