CFLib.org – Common Function Library Project

FileCanWrite(filename)

Last updated November 14, 2002

author

Jesse Houwing

Version: 1 | Requires: CF6 | Library: FileSysLib

Description:
Checks to see if a file can be written to. It uses the standard Java File object, which makes it very fast under Coldfusion MX.

Return Values:
Returns a boolean.

Example:

<cfset filename="c:\autoexec.bat">
<cfoutput>
	Can write to: #FileCanWrite(filename)#<br>
</cfoutput>

Parameters:

Name Description Required
filename The name of the file. Yes

Full UDF Source:

/**
 * Checks to see if a file can be written to.
 * 
 * @param filename 	 The name of the file. (Required)
 * @return Returns a boolean. 
 * @author Jesse Houwing (j.houwing@student.utwente.nl) 
 * @version 1, November 14, 2002 
 */
function FileCanWrite(filename){
	var daFile = createObject("java", "java.io.File");
	daFile.init(JavaCast("string", filename));
	return daFile.canWrite();
}
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