Re: [json-lib-user] Converting JSONSerializer.toJSON

[Andres A. <aal...@ya...>]

Hi Haritha,

Since the 2.x series JSONObject switched from HashMap to a ListOrderedMap (commons-collections) , there is even a test to assure this behavior should not be broken


371    public void testFR_1858073_preserveInsertionOrder() {
372       JSONObject jsonObject = new JSONObject().element( "one", "one" ).element( "two", "two" )
373             .element( "three", "three" );
374       JSONArray actual = jsonObject.names();
375       JSONArray expected = new JSONArray().element( "one" ).element( "two" ).element( "three" );
376       Assertions.assertEquals( expected, actual );
377    }

Perhaps you stumbled into a case that was not considered by the current impl. May I ask which version of Json-lib are you testing with?

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----- Original Message ----
From: Haritha Juturu <har...@ya...>
To: jso...@li...; aal...@ya...
Sent: Wednesday, June 25, 2008 12:07:19 PM
Subject: Converting JSONSerializer.toJSON


Hi All/Andres
I have a LinkedHashMap allPhotos = new LinkedHashMap<String, Object>();    
which has objects sorted in order of insertion.
What i am trying to do is convert this to a JSON string by using the following code
JSONObject json = (JSONObject) JSONSerializer.toJSON( allPhotos );
json.toString();

When i do this the JSON that is created looses the order of the elements in allPhotos.

Example
I put data in this order
allPhotos.put('abc','david');
allPhotos.put('cdg','jason');
allPhotos.put('efg','brian');

But my final json string looks like this 

{"cdg":"jason","efg":"brian","abc":"david"}

Retaining this order is important to our application. Can anyone tell me how  i can achieve that?
Thanks
Haritha