CFLib.org – createJavaObject

createJavaObject(directory)

Last updated October 19, 2004

author

Version: 1 | Requires: ColdFusion MX | Library: UtilityLib

Rated 2 time(s). Average Rating: 5.0

Description:
Instantiates Java objects in virtual paths so you do not need to change the classpath for your application.

Return Values:
Returns a Java object.

Example:

view plain print about

<cfscript>
	loader = createJavaObject("./");
	helloWorld = loader.loadClass("GpgTool").newInstance();
</cfscript>

<cfdump var="#helloWorld#">

<cfscript>
loader = createJavaObject("./");
helloWorld = loader.loadClass("GpgTool").newInstance();
</cfscript>

<cfdump var="#helloWorld#">

Parameters:

Name	Description	Required
directory	Directory where the class can be found.	Yes

Full UDF Source:

	
	
			
			
			
				
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				about
				ColdFISH is developed by Jason Delmore.  Source code and license information available at coldfish.riaforge.org.  Version 3.1.1
				
			<cfscript>
/**
 * Allows one to use virtual paths to Java objects.
 * Returns a Java object for a given virtual path. 
 * This allows you to place your Java class files 
 * anywhere you want. Based on Stephen Milligan's blog entry at http://www.spike.org.uk/blog/index.cfm?data=20040603#EBB52433-D565-E33F-353D2664926C59B5
 * 
 * @param directory 	 Directory where the class can be found. (Required)
 * @return Returns a Java object. 
 * @author Wayne Graham (&#119;&#115;&#103;&#114;&#97;&#104;&#64;&#119;&#109;&#46;&#101;&#100;&#117;) 
 * @version 1, October 19, 2004 
 */
function createJavaObject(directory){
	var URLObject = createObject("java", "java.net.URL");
	var ArrayClass = createObject("java","java.lang.reflect.Array");
	var loader = createObject("java","java.net.URLClassLoader");
	var URLArray = "";
	
	directory = replace(expandPath(directory), "\", "/", "all");		
	URLObject.init("file:" & directory);
	URLArray = createObject("java", "java.lang.reflect.Array").newInstance(URLObject.getClass(), 1);
		
	ArrayClass.set(URLArray,0,URLObject);
	return loader.init(URLArray);
}
</cfscript>
		<cfscript>
/**
 * Allows one to use virtual paths to Java objects.
 * Returns a Java object for a given virtual path. 
 * This allows you to place your Java class files 
 * anywhere you want. Based on Stephen Milligan's blog entry at http://www.spike.org.uk/blog/index.cfm?data=20040603#EBB52433-D565-E33F-353D2664926C59B5
 * 
 * @param directory      Directory where the class can be found. (Required)
 * @return Returns a Java object. 
 * @author Wayne Graham (wsgrah@wm.edu) 
 * @version 1, October 19, 2004 
 */
function createJavaObject(directory){
    var URLObject = createObject("java", "java.net.URL");
    var ArrayClass = createObject("java","java.lang.reflect.Array");
    var loader = createObject("java","java.net.URLClassLoader");
    var URLArray = "";
    
    directory = replace(expandPath(directory), "\", "/", "all");        
    URLObject.init("file:" & directory);
    URLArray = createObject("java", "java.lang.reflect.Array").newInstance(URLObject.getClass(), 1);
        
    ArrayClass.set(URLArray,0,URLObject);
    return loader.init(URLArray);
}
</cfscript>