Re: [json-lib-user] Is it possible to force JSONObject.toBean() throw exceptions on cast issues for primitives as oppose to using default values?

[Leonard G. <Leo...@ma...>]

Hi Andres and thanks for reply.

The example demonstrates how to use defaultValueProcessor going java->Json;
I need to do the reverse

I have a JSON string that gets converted to JSONObject  that  get converted to Java.

I have a call:

MyBean obj = (MyBean) JSONObject.toBean(jsResponse, MyBean.class);

When I tried to use JSONConfig with with defaultValueProcessor, it did not help much since all the types are the strings or list of strings.

I noticed that that toBean() can also take JSonConfig - maybe there is something that can be passed there?

Thanks




________________________________
From: Andres Almiray [mailto:aal...@ya...]
Sent: Friday, May 01, 2009 12:06 PM
To: Leonard Gestrin; jso...@li...
Subject: Re: [json-lib-user] Is it possible to force JSONObject.toBean() throw exceptions on cast issues for primitives as oppose to using default values?

Hi Leonard,

Yes, you can register a DefaultValueProcessor to do just that.
http://json-lib.sourceforge.net/advanced.html
http://json-lib.sourceforge.net/xref-test/net/sf/json/TestJSONObject.html#812
http://json-lib.sourceforge.net/xref-test/net/sf/json/TestJSONObject.html#833

Cheers,
Andres

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________________________________
From: Leonard Gestrin <lge...@gm...>
To: jso...@li...
Sent: Thursday, April 30, 2009 8:15:13 PM
Subject: [json-lib-user] Is it possible to force JSONObject.toBean() throw exceptions on cast issues for primitives as oppose to using default values?
Hello, ( I apologize if this is duplicate message)

I noticed that if I have a bean that has primitive member with setters and getters and I try to instantiate it from JSON string that has invalid int for that member, EZ Morph is using default value 0 instead of throwing exceptions.

I looked at the code of EZMorpth and I could not find an easy way to change that default behavior.  I would like to be able to differentiate between invalid value and default value.  Is there some easy trick I can use to do so?

Thanks
Leonard