Re: [CFCDEV] Create java object in an array

[Jim Mattson]

Geoff,

You can't create a java array directly from CF, at least I have not been able to find a way.  Instead, you need to use reflection to create the array:

// Create an Array
someArray      = createobject("java", "java.lang.reflect.Array");

// Create the type of Object your Array is going to contain
someObjectType = createObject("java", "com.somepackage.SomeObjectType").init();

// Create an array and specify the type of object you are creating, and the number of elements you expect it to hold
actualArray = someArray.newInstance(someObjectType.getClass(), 3);

Then you can populate it as normal:

// Create the object
someObjectInstance = createObject("java", "com.somepackage.SomeObjectType").init();

// Set its attributes/member variables
someObjectInstance.setAttribute1("blah");
someObjectInstance.setAttribute2("blah2");
someObjectInstance.setAttribute3("blah3");

// set the "0" element of the array to the object that you just created
someArray.set( actualArray, 0, someObjectInstance );

Repeat the populatuion steps for each element of the array.

I hope that helps.

Thanks,

Jim M.

----- Original Message ----
From: Geoff Parkhurst <[EMAIL PROTECTED]>
To: cfcdev@cfczone.org
Sent: Friday, September 8, 2006 4:16:58 AM
Subject: [CFCDEV] Create java object in an array

I'm trying to convert a PayPal .JSP express checkout example into a
ColdFusion CFC, but am having difficulties with an array of java objects.

Here's the relevant bit of the jsp:

PaymentDetailsItemType[] paymentItems = new PaymentDetailsItemType[3];
PaymentDetailsItemType paymentItem = new PaymentDetailsItemType();
paymentItem.setName("Photographic Print - Tropical Sunset");
Etc...

Previously, all these java bits are created fine. E.g.:

pp_request=CreateObject("java","com.paypal.soap.api.DoExpressCheckoutPayment
RequestType");

But I can't see how to do the same CreateObject syntax for an array.

Any help would be much appreciated.

Many thanks,
Geoff




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