How to access data when return type is an object?

[Ben Densmore]

I'm working with the ebay API and using one of the methods to retrieve some Category Info, this gets me the top level categories.

From there I want to get the child categories. There is a method that is returned from the web service call named getChildCategory(), this method has a return type of eBLBaseComponents.apis.ebay.StoreCustomCategoryType

If I do this:
<cfset ebayCategoryCreator = createObject("component","components.Ebay") />

<cfset createdCategories =  ebayCategoryCreator.createEbayCategory() />
<cfset store = createdCategories.getStore().getCustomCategories().getCustomCategory() />

<cfloop from="1" to="#ArrayLen(store)#" index="category">
<cfoutput>
  #store[category].getChildCategory()# <br />
 </cfoutput>
</cfloop>

The output returned is:
[LeBLBaseComponents.apis.ebay.StoreCustomCategoryType;@3c474b6

If I look at the StoreCustomCategoryType Java file I can see the methods defined as follows:
  
 public eBLBaseComponents.apis.ebay.StoreCustomCategoryType[] getChildCategory() {
        return childCategory;
    }


    public eBLBaseComponents.apis.ebay.StoreCustomCategoryType getChildCategory(int i) {
        return childCategory[i];
    }

How can I get at the child categories?

Thanks,
Ben

[Tom Chiverton]

On Wednesday 01 Jul 2009, Ben Densmore wrote:
> #store[category].getChildCategory()# <br />

Try cfdump here rather than cfoutput?

--

Tom Chiverton
Developer

Tom.Ch...@halliwells.com
3 Hardman Square, Manchester, M3 3EB

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[Ben Densmore]

cfdump chokes on it. It gives me an error that var is required or something like that even though I'm doing <cfdump var="#store[category].getChildCategory()#" />, it seems to do this with any method I try to do a cfdump on that has a return type that is an object.

I've never encountered that error with cfdump before.

Ben

[Judah McAuley]

Have you tried doing a dump of the Store array and expanding it? You
should be able to click through and see all the members, make sure
they are objects and see their methods. You might also try dumping a
particular array member using a numeric index, like store[1] just to
remove potential strangeness.

Judah

[Ben Densmore]

Yeah, I have tried all those.

I can see the getChildCategory() method in the dump and as I said it has a return type of eBLBaseComponents.apis.ebay.StoreCustomCategoryType which is really just a bean.

I'm missing something, just not sure what.

Ben

[Judah McAuley]

Well, looking at the java code you posted, it seems that there are two
getChildCategory methods, one which returns an array and one which
returns a particular member of an array. What happens when you call
getChildCategory(1)?

Judah

[Ben Densmore]

I get a null pointer error.

[Anthony Israel-Davis]

That often occurs when the the object returns nothing - no childCategories. I've run into this type of thing before with web service objects.

 

Anthony

---

From: cfc...@googlegroups.com [mailto:cfc...@googlegroups.com] On Behalf Of Ben Densmore
Sent: Thursday, July 02, 2009 11:34 AM
To: cfc...@googlegroups.com
Subject: [CFCDEV] Re: How to access data when return type is an object?

[Judah McAuley]

Ah, good point Anthony. You might try an ArrayLen on getChildCategory
and see what that returns.

Judah

[Adrian Lynch]

You'll get that error whenever you dump a function call that doesn't
return anything.

<cffunction name="nowt">
<!--- I return nothing --->
</cffunction>

<cfdump var="#nowt()#">