<!------------------------------------------------------------- 
    This example shows how CFLOCK can be used to guarantee the
    consistency of data updates to variables in the Application, 
	Server, and Session scopes. You should copy the following code 
	into an Application.cfm file in the snippets directory. 
--------------------------------------------------------------->
	<HTML>
	<HEAD>
		<title>Define Session and Application Variables</title>
	</HEAD>
	
	<BASEFONT FACE="Arial, Helvetica" SIZE=2>
	<BODY  bgcolor="#FFFFD5">
	
	<H3>CFAPPLICATION Example</H3>
	
	<P>CFAPPLICATION defines scoping for a ColdFusion application and 
	enables or disables the storing of application and/or session
	variables. This tag is placed in a special file called
	Application.cfm that is run before any other CF template in a
	directory where the Application.cfm file appears. This is a read-
	only example to ensure that you create your own Application.cfm
	file according to the needs of your site.

	<!------------------------------------------------------------- 
	
	<CFAPPLICATION NAME="ETurtle" SESSIONTIMEOUT="60"
	SESSIONMANAGEMENT="yes">
	<!------------------------------------------------------------- 
	Initialize the session and application variables that will be 
	used by E-Turtleneck. Use the session lock for the session variables.
	The member variable sessionID creates the session name for you.
	---------------------------------------------------------------> 

	<CFLOCK Name="#session.sessionID#" timeout="30" Type ="Exclusive">
		<CFIF NOT IsDefined("session.size")>
			<CFSET session.size = "">
		</CFIF>
		<CFIF NOT IsDefined("session.color")>
			<CFSET session.color = "">
		</CFIF>
	</CFLOCK>
	
	<!---------------------------------------------------------------- 
	Use the application lock for the application variable. This
	variable keeps track of the total number of turtlenecks sold. The
	application lock should have the same name as specified in the 
	CFAPPLICATION tag. 
	------------------------------------------------------------------->
	
	<CFLOCK Name="application.applicationName" Timeout="30"
	Type="Exclusive">
		<CFIF NOT IsDefined("application.number")>
			<CFSET application.number = 1>
		</CFIF>
	</CFLOCK>
	<CFLOCK Name="application.applicationName" Timeout="30" 
	Type ="ReadOnly">
		<CFOUTPUT>
		E-Turtleneck is proud to say that we have sold
		#application.number# turtlenecks to date.
		</CFOUTPUT>
    </CFLOCK>
--------------------------------------------------------------->	 
<!--- End of Application.cfm --->

<HEAD>
<TITLE>
CFLOCK Example
</TITLE>
</HEAD>

<BASEFONT FACE="Arial, Helvetica" SIZE=2>
<BODY  bgcolor="#FFFFD5">

<H3>CFLOCK Example</H3>
<!---------------------------------------------------------------------
<CFIF IsDefined("form.submit")>
	<!-----------------------------------------------------------------
	 Lock session variable sessionID. Note that the sessionID member 
	 variable becomes the order number. 
	------------------------------------------------------------------->
	<CFLOCK Name="#session.sessionID#" timeout="30" Type="ReadOnly">
		<CFOUTPUT>
		Thank you for shopping E-Turtleneck. Today you have
		chosen a turtleneck in size <b>#form.size#</b> and in the color
		<b>#form.color#</b>. Your order number is #session.sessionID#.
		</CFOUTPUT>
	</CFLOCK>
	
	<!----------------------------------------------------------------- 
	 Lock session variables to assign form values to them. 
	 To lock session variables, you should get the session ID with
	 the sessionID member variable. 
	-------------------------------------------------------------------> 
	<CFLOCK Name="#session.sessionID#" timeout="30" Type="Exclusive">
		<CFPARAM Name=session.size Default=#form.size#>
		<CFPARAM Name=session.color Default=#form.color#>
	</CFLOCK>
	
	<!------------------------------------------------------------------ 
	Lock application variable application.number to find the total number 
	of turtlenecks sold. If you do not know the name of the application,
	you can use the member variable applicationName to get it. 
	-------------------------------------------------------------------> 
	<CFLOCK Name="#application.applicationName#" Timeout="30" Type="Exclusive">
		<CFSET application.number = application.number + 1>
	</CFLOCK>
	
<CFELSE><!--- Show the form only if it has not been submitted. --->

<FORM ACTION="cflock.cfm" METHOD="POST">

<P>Congratulations! You have just selected the longest wearing, most comfortable turtleneck in the world. Please indicate the color and size that you wish to buy.</P> 
<table cellspacing="2" cellpadding="2" border="0">
<tr>
    <td>Select a color.</td>
    <td><SELECT TYPE="Text" NAME="color">
		<OPTION>red
		<OPTION>white
		<OPTION>blue
		<OPTION>turquoise
		<OPTION>black
		<OPTION>forest green
		</SELECT>
	</td>
</tr>
<tr>
    <td>Select a size.</td>
    <td><SELECT TYPE="Text" NAME="size" >
		<OPTION>XXsmall
		<OPTION>Xsmall
		<OPTION>small
		<OPTION>medium
		<OPTION>large
		<OPTION>Xlarge
		</SELECT>
	</td>
</tr>
<tr>
    <td>Press Submit when you are finished making your selection.</td>
    <td><INPUT TYPE="Submit" NAME="submit" VALUE="Submit"> 
	</td>
</tr>
</table>
</FORM>
</CFIF>
------------------------------------------------------------------->
</HTML>