Single Application for Both Online and Offline

Question

We are working for a client wherein we have developed custom ADF application which is used by online users(Web Users - Who are connected to internet). All the Data used for this Application is stored in Data base.

We have similar offline Desktop(Standalone) Application , built on Java Swings which is used by the users when they are not connected to internet(Offline Mode). Here the input and output data is stored in XML files.

Now client wants to eliminate the Standalone desktop application. They want one single Application(Single Code base) which should work both as online when connected to internet and should work as offline when not connected to internet.

Can we achieve this using HTML5?. If Yes, please share the IDE and other technology links.

If not, Please gives us pointer on what are the java technologies avialable in the market to acheive the same ?

Please note that our current ADF application is integrated with Oracle EBS.

Answer 1

当然有可能，但是您的javascript将在@Mike W链接的帮助下发挥重要作用，在该链接中，您需要使用javascript将这些数据保存在html应用程序缓存中，并检查在线状态，然后开始将这些数据传输回数据库。

Answer 2

I'm currently working on a package for financial advisers, this has the same access constraints: Web access if there's a live internet connection, or a standalone application if there isn't (at a client site for example).

In this instance we've chosen to go with javafx. The app can be deployed/built as standalone or for access via a browser. It's relatively easy to create both from the same code base.

The XML/DB access could be based on your current code (we use sqlite with but that's irrelevant for your solution).

Not sure how ADF plays with javafx though.