WebLogic Server 6.0 Code Examples, BEA Systems, Inc.

examples.dbkona
Class rowid

java.lang.Object
  |
  +--examples.dbkona.rowid

public class rowid
extends java.lang.Object

This example constructs a TableDataSet for inserting, updating, and deleting records from an Oracle database. It illustrates the use of an Oracle ROWID as a unique key for updates and deletes.

To run this example, you must have the Oracle DEMO database running. The connection to the database is made with WebLogic jDriver for Oracle. This example is run from the command line and the results are displayed to standard out. For other examples of how to display query results, check the server-side Java examples that use htmlKona and dbKona in the examples/servlets directories.

If you don't have the Oracle DEMO database, you can use the file utils/ddl/demo.ddl to set it up.

The following section describes how to build and run the examples:

  1. Build the example
  2. Configure the server
  3. Run the example

Build the example

  1. Set up your development shell as described in Setting up your environment for building and running the examples.

  2. Compile the example by executing the following command or by executing the build script provided for this example in the samples/examples/dbkona directory. The script will perform the following step:

    1. Compile the rowid class as shown in this example for Windows NT/2000:

      $ javac -d %CLIENT_CLASSES% rowid.java

Configure the server

  1. Start the server with the examples configuration.

  2. Bring up the Administration Console in your browser with the URL:
    http://hostname:port/console
    where:
    hostname
    Host name of the WebLogic Server
    port
    Port where the WebLogic Server is listening for connections
  3. Click to expand the Services node in the left-hand pane.
  4. Click to expand the JDBC node in the left-hand pane.
  5. Click to expand the Connection Pools node in the left-hand pane.
  6. Select the oraclePool node.
  7. Select the Targets tab in the right-hand pane to display the Available and Chosen targets.
  8. Select the examplesServer target in the Available column.
  9. Click the mover control to move the examplesServer target to the Chosen column.
  10. Click the Apply button in the lower right-hand corner to save your assignment in the console configuration file.

Run the example

  1. Run this example by executing the following command in your development shell:

    $ java examples.dbkona.rowid

Author:
Copyright (c) 1996-2000 by BEA Systems, Inc. All Rights Reserved.

Constructor Summary
rowid()
           
 
Method Summary
static void main(java.lang.String[] argv)
          First the JDBC connection is configured and made.
 
Methods inherited from class java.lang.Object
, clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

rowid

public rowid()
Method Detail

main

public static void main(java.lang.String[] argv)
First the JDBC connection is configured and made. Then a dbKona TableDataSet is constructed using the JDBC connection object and the name of the table. This example illustrates how to add new records and save them selectively. Then a KeyDef object (a unique attribute identifier) is created for updates and deletes; the records that were previously added are first updated, and then deleted to illustrate code for these two tasks. A final call to the save() method updates the DBMS with the changes made. The last few lines of code close all the data objects that were used in this example.

Documentation is available at
http://e-docs.bea.com/wls/docs60

Copyright © 2000 BEA Systems, Inc. All Rights Reserved.