JayData Pro is a unified data access library for JavaScript developers. JayData Pro lets you access the most popular data APIs and data stores around you on a developer friendly way providing a common coding experience over several different sources like IndexedDB, WebSQL or OData.
JayData makes it ridiculously simple to create and work with local databases and OData services, expressing CRUD and query operations with a slick syntax that works across all data providers.
The easiest way to understand how JayData can help you is by reviewing the following JavaScript code snippet that revolves around a simple local database.
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$data.define("Todo", { Task: String, Completed: Boolean }); $data("Todo").save({Task:"Step 1", Completed: false }); $data("Todo").query("it.Task.contains('Step') && it.Completed == true"); |
The code defines a Todo information type (and an WebSQL or IndexedDB database) with Task and Completed fields. It then stores and queries for some data. To achieve this functionality without using JayData you need to create a huge amount of code (above 300 lines). Check this post for the details.
Working with online data has never been easier.
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$data("Todo").setStore("default", { provider: 'webApi', apiUrl: '/api/Todos' }); |
With an additional line of code our Todo database could be over the net, exposed with WCF Data Services, Web API or OData.
Forget complex client code to establish the connection to your OData exposed database.
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$data.service("/Northwind.svc", function(factory) { var northwind = factory(); northwind.Products.filter("it.Category.Name == 'Beverages'").forEach(...); }); |
Beyond being a conduit to data JayData also provides adapters for a number of UI library frameworks like KendoUI, Knockout, Handlebars or Sencha.
See how simple is to have your data listed and edited in a KendoUI Grid component.
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<div id="grid"> </div> <script> $('#grid').kendoGrid({ editable: true, filterable: true, dataSource: $data.define("Todo", { Task: String, Completed: Boolean }).asKendoDataSource() }) </script> |
JayData Pro supports the following storage options and APIs:
Local/HTML5 stores:
Online providers for:
The closed source product has some advantages that can be beneficial in some cases. It has a built-in 4-hours support which is best used for consulting about the solution you are planning to build with JayData Pro. Since it is not a GPL or MIT licensed product, it can be more easily used in strictly regulated environments which normally prohibit the usage of open source technologies or investigate them so thoroughly that the process is simply too long to wait. Don’t forget the sticky clause in GPL which turns every derivative or aggregate also into GPL.
JayData Pro extends the functionality of JayData Open Source by additional JayData Pro modules included in the JayData Pro package.
If you are building a serious, enterprise application, JayData Pro is the product you should consider.
| JayData Pro | JayData Open Source | |
|---|---|---|
| Commercial License | Available | Not available |
| Trial License | Available | Not available |
| Support plans | Available 4 hours included | Available |
| Source licensing | Closed source* | Open Source: MIT, GPLv2 |
| Create commercial apps | Yes | Yes |
| Retain JayData copyright notice in your app | No | Required |
| Publish your Apps code as Open Source | No | Not required with MIT license Required with GPLv2 license |
| Compatible with Pro modules | Yes | Yes |
| Contains Pro modules | Some** | No |
| Price | $250, one time fee | Free |
