Imagining an application without the need for data is impossible in today's world. Almost every application has a need for data and some ways to store and work with them effectively and efficiently. Sencha Touch provides a rich set of classes to work with varied data sources, represent structured data, and store it locally, which can then be fed to different data centric components such as list, form, combo-box, charts, and so on. It also provides classes and APIs to validate, filter, sort, and group data. The following diagram depicts the different classes, which are part of the data infrastructure provided by Sencha Touch:
Proxy: Proxies allow us to interface with different data sources such as REST services, Servlet, in-memory array, HTML5-based storage, and so on to read data from or save data to.
Reader: Readers are used during the loading of the data. They interpret the data into a model or a store. Based on the type of data we have to deal with, the respective reader...