Connect to RSS Feeds from PowerBuilder

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RSS JDBC Driver

Easy-to-use RSS client driver enables developers to build Java applications that easily consume RSS feeds.



This article demonstrates how to access RSS feeds from PowerBuilder using the RSS JDBC Driver.

The CData JDBC Driver for RSS is a standards-based control that can be used from any platform or development technology that supports JDBC, including PowerBuilder. This article shows how to use the CData JDBC Driver for RSS in PowerBuilder.

This article shows how to create a basic PowerBuilder application that uses the CData JDBC Driver for RSS to retrieve data.

Connect to RSS Feeds from PowerBuilder

Follow the steps below to use the Database Painter tool to create a database profile based on an JDBC URL for RSS. You can use a database profile to save connection properties. In the Database Painter, you can graphically manipulate data as well as execute SQL queries.

  1. Add the driver JAR to the PowerBuilder classpath. Set the CLASSPATH system environment variable to the path to the driver JAR, located in the lib subfolder of the installation directory.

    Note: If you are using PowerBuilder Classic, you can also add the path to the driver JAR by clicking Tools -> System Options -> Java.

  2. Click Tools -> Database Painter.
  3. Right-click the JDBC node and click New Profile.
  4. In the Database Profile Setup dialog, enter the following:
    • Profile Name: Enter a user-friendly name for the profile.
    • Driver Name: Enter the class name of the driver, cdata.jdbc.rss.RSSDriver
    • URL: Enter the JDBC URL.

      You can connect to RSS and Atom feeds, as well as feeds with custom extensions. To connect to a feed, set the URL property. You can also access secure feeds. A variety of authentication mechanisms are supported. See the help documentation for details.

      Built-in Connection String Designer

      For assistance in constructing the JDBC URL, use the connection string designer built into the RSS JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

      java -jar cdata.jdbc.rss.jar

      Fill in the connection properties and copy the connection string to the clipboard. A typical JDBC URL is below:

      jdbc:rss:URI=http://broadcastCorp/rss/;
  5. To view and modify a table, right-click a table and then click Edit Data -> Grid.

Using RSS Feeds with PowerBuilder Controls

You can use standard PowerBuilder objects to connect to JDBC data sources and execute queries. The following example shows how to retrieve RSS feeds into a DataWindow. You can add the following code to the open method:

SQLCA.DBMS = "JDBC" SQLCA.AutoCommit = False SQLCA.DBParm = "Driver='cdata.jdbc.rss.RSSDriver',URL='jdbc:rss:URI=http://broadcastCorp/rss/;"; CONNECT USING SQLCA; dw_latest news.SetTransObject(SQLCA); dw_latest news.Retrieve();