InSync: Automatic Offline Data Synchronization in AIR using LCDS 2.6
LCDS 2.6 allows you to build AIR applications with automatic offline data synchronization. This feature leverages the SQLite relational database system embedded in the AIR runtime, but the advantage is that the data synchronization process is entirely automatic: you don’t have to write SQL statements or synchronization logic to keep your local database in sync with your central database.
I have been getting a number of questions related to this feature, so I decided to build a sample application that demonstrates how it works.
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Offline Synchronization using AIR and LiveCycle Data Services
As part of my MAX talks in Chicago and Barcelona, I used a simple Contact Manager application to demonstrate offline synchonization using AIR and LiveCycle Data Services (LCDS). Many people have asked me to share the code, so here it is… This is actually an update of an application I posted a few months ago (but that didn’t include the offline synchronization part at the time).
New AIR SQLite Administration App (with Source Code)
UPDATE: This version is now obsolete. A new version is available here.
Here is an updated/rewritten version of my AIR SQLite Admin application. You can use this application to examine the structure of a database, create a new database or open an existing one, execute any type of SQL statement, etc.
An interesting aspect of this new version is that the application itself uses a database (sqladmincache.db) to keep track of the databases you opened and the statements you executed. This is useful if you want to quickly re-open a recently accessed database, or re-execute a recently executed statement.
This new version uses synchronous database operations (AIR beta 1 only supported asynchronous database access), and uses the schema API (also new in beta 2) to show you the list of tables and columns available in your database.
The UI is still simple, but uses some new AIR and Flex 3 features such as the AdvancedDataGrid and Native Windows.
Click here to install the application.
Click here to download the source code.
Salesbuilder for Flex 3 / AIR Beta 2 (AIR file + source code)
I migrated the Salesbuilder application for Flex 3 / AIR beta 2.
Click here to install the application.
Click here to download the source code.
Follow this script for a guide tour of the application.
