Difference b/w Ext.data.JsonStore and Ext.data.Store

[karthik085]

Hi,
I came across this article which explains the difference b/w Ext.data.JsonStore and Ext.data.Store, which I understand

http://stackoverflow.com/questions/2130721/whats-basic-difference-between-jsonstore-and-jsonreader-in-context-to-ext-data

As I am new to using ExtJS, what are the differences b/w them when it comes to
a) favored way of retrieving JSON
b) better coding standards
c) any performance improvement of using one over the other

Thanks!

[evant]

A JsonStore is just a convenience shortcut for creating a store with JsonReader and HttpProxy.

[Mike Robinson]

To think of it another way: "Store" is the ancestor object; "JsonStore" et al are descendants from that. All of these descendants implement the functionality of a "Store" but they do so in specific ways ... depending one exactly how your client and your server need to talk to one another.

Going one optional step deeper in my explanation ... It so happens that, since most of the actual differences have to do with reading, writing, or encoding of data, many of the differences are implemented by specific "Reader," "Writer," and "Proxy" helper objects. The convenient, "canned" descendants of a Store deal with the task of instantiating and attaching the appropriate helpers to themselves, all behind-the-scenes from you.

For what it's worth, very early on in developing apps around here, I devised a "company-specific Store object." It's precisely tuned to how we do things around here right now, but in all of the code that we are building around here, it's completely generic. The idea is that, when someone comes up with a blazingly new way of implementing the server-side, perhaps we'll only have to change one JavaScript file.

[jay@moduscreate.com]

Check out the source. You will see what Evan is talking 'bout.