All Examples  This Package

package examples.event.stocks

EvaluateStocks

MailStockInfo

Register

SendEvents

about this package

This package contains a small stock-price application that is driven by WebLogic Events. There are four Java files:

• Register lets you register interest in events having to do with certain stocks. You run this class from a command-line prompt.
• SendEvents generates events for certain stocks. After you register, you run this from a second command-line prompt to generate event traffic.
• EvaluateStocks is the evaluator class that Register uses in its EventRegistration. It evaluates whether WebLogic should call the action class for each related event.
• MailStockInfo is the action class that Register uses in its EventRegistration. It sends you email when your registered stock gets to a certain price range.

how to use this package

1. Set up your development environment as describe in Setting your development environment.

2. Compile the EvaluateStocks.java and MailStockInfo.java classes to your SERVER_CLASSES directory, with a command like this one for Windows NT:

     $ javac -d %SERVER_CLASSES% EvaluateStocks.java MailStockInfo.java

3. Compile the Register.java and SendEvents.java classes to your CLIENT_CLASSES directory with a command like this one for Windows NT:

     $ javac -d %CLIENT_CLASSES% Register.java SendEvents.java

4. Start WebLogic Server in your server shell.

5. Register an interest in some stocks by calling the Register class from a development shell. (Use a real email account -- your own -- and supply a valid SMTP server.) Here's an example that registers an interest in Sun Microsystems stock at $75 share for an interested party foo@bar.com, using the SMTP server at bigisp.com:

    $ java examples.event.stocks.Register t3://localhost:7001 SUNW 75 smtp.bigisp.com foo@bar.com

6. Generate some stock traffic by calling the SendEvents class from your development shell. Here's an example that generates matching traffic for the registration above, with a series of prices that start at 105 and fall to 70:

    $ java examples.event.stocks.SendEvents t3://localhost:7001 SUNW 70 105

7. Check your email.

there's more . . .