BlackBerry Push Sample program Analysis (i) what is the ECL sample program, its origin, meaning

The BlackBerry Enterprise Solution helps developers develop server-side enterprise applications using push technology to push information to BlackBerry smartphone users in real time. With push technology, enterprise servers can securely push content to BlackBerry browsers, or Java applications on BlackBerry smartphones. With push technology, developers can easily communicate the latest information and warnings to smartphone users in a timely and reliable manner.

To facilitate developer learning and use of BlackBerry push technology, the BlackBerry's official website provides a sample program emergency contact List (ECL), including Java/asp.net/domino three languages, Supports browser push and Java application push. The Java version of the program source code and run script can be downloaded on the page www.blackberry.com/go/ecl. In this article, we will analyze the Java version of the ECL sample program.

Comparison of ECL programs for each language version:

ECL Version	database (s) utilized ( data source )	server-side Technology	Push Interface	BlackBerry Client Implementation
Java ECL	Microsoft Excel	Java EE	Command line	Java Application Browser Application
asp.net ECL	Microsoft Excel Microsoft Access Microsoft SQL Server	. NET	Command line Gui Windows®service Push Access Protocol (PAP)	Java Application Browser Application
Domino®ecl	IBM Lotus Notes	Java EE	Command line Lotus Notes Interface	Java Application Browser Application