Building portlets with PL/SQl vs java

Hi
We are planing to use oracle 9iAS application server(Enterprise version)to build portal application.
Can someone suggest me which one should i use, building portlets with j2ee or building portlets with PL/SQL.
what are the advantages of web providers over database providers?which one is the best way of building portlets.

Hello
I've been using Portal for years now, and I'm still developping in PL/SQL. It's very simple and quick to developp. I'm even not using any database providers, I'm just invoking my procedures via their URLs with some Ajax hidden components, and I could developp some screens like employees vacations managements, trombinoscope, portal statistics, etc ...
I learnt at Oracle how to developp some "true" portlets with DB providers but it's not usefull for me at this time as I don't need portlet customization etc.
BUT
if I had to developp a really big project with several developpers I would use DB providers.
And maybe I would use Java but it takes rather long time to be efficient with this language and it needs to be a realy big project for I start using this language. And as explained above Java offers more compatibility with 3rd party products.
And last but not least, one has to know what Oracle is more and more dealing with Java, the next 11g version that has just released is much more using Java than 10g does, and that's true for every Oracle products.
So it's just a matter of skill and time.
A.

Similar Messages

Xml dom with pl/sql or java

Hi,
For increase speed an procedure with xmldom, wich langage can I use ? pl/sql or java
Thanks
Ben

I also recall readings somewhere how Oracle have coded the database packages into native C to boost performance, but for the life of me I can't recall where it was now.
I've not done any Java parsing work, but I have been using PL/SQL to parse XML Schema documents (which are in effect XML documents so there's no difference there really). I found that all I needed to be able to parse the XML schema so that I could navigate through the document and carry out my own processing was the use of the DBMS_XMLDOM package. This allowed me to navigate from the root element down through the siblings and children elements and extract the attributes and any data that was required on the way.
The Oracle PL/SQL Packages and Types Reference details all the available built-in packages sufficiently well.
Regards

Problems with PL/SQL Calling Java Function that returns String []

Hi,
I have written the following code. It's not compiling OK.
DECLARE
TYPE Tokens_Type IS VARYING ARRAY(20) OF VARCHAR2(20);
s1 Tokens_Type DEFAULT NULL;
SQL_STR VARCHAR2(2000) DEFAULT NULL;
BEGIN
SQL_STR := 'CREATE OR REPLACE FUNCTION Schema1.SPLIT_STR (S2 VARCHAR2(20)) ' ||
'RETURN s1 ' ||
'AS LANGUAGE JAVA ' ||
'NAME ''String_Mani.split_it (String) return java.lang.String []''';
EXECUTE IMMEDIATE SQL_STR;
END;
What's the problem with this?

You cannot create a function with a locally defined return type. As soon as this script is executed, Oracle no longer knows what the TOKEN_TYPE type is any more, so the function will be invalid.
You need to use a collection type defined at the database level or defined in a package - somewhere where it will persist.

Problems with the article Building JSR 168-Compliant Portlets with Sun Java

i try to make my first portlet with the article Building JSR 168-Compliant Portlets with Sun Java Studio Enterprise
But when start the portlet simulator in the sun java studio i have an error. I did all that the article says. Please help me!!
Thanks and sorry for my english
Errors generated by provider instance - see log output
Error in provider method getContent(): com.sun.portal.providers.ProviderException: JSPProvider.processJSPFile(): jsp=HarnessPortletContent.jsp, java.lang.NullPointerException
Message: Locale string - es_ES
Message: Obtained client type - html.
Message: Got session property "filePath" = "null".
Message: Locale string - es_ES
Message: Got String property "contentPage" for channel "HarnessPortletChannel" = "HarnessPortletContent.jsp".
Message: Locale string - es_ES
Message: Obtained client type - html.
Message: Client path - null
Message: Obtained template path: C:\Documents and Settings\jbonardi\jstudio_6ee_user\ps\desktop\default\HarnessPortletChannel\HarnessPortletContent.jsp
Message: Set session property "javax.portlet.http_session_id" to object "BC7F955E23394EF2EA8772E8B60F1CC4".
Message: Got localized String property "title" for channel "HarnessPortletChannel" = "HarnessPortletProvider".
Message: Boolean property "isEditable" for channel "HarnessPortletChannel" does not exist.
Message: Got localized String property "description" for channel "HarnessPortletChannel" = "HarnessPortletProvider".
Message: String property "helpURL" for channel "HarnessPortletChannel" exists.
Message: Got String property "helpURL" for channel "HarnessPortletChannel" = "desktop/usedesk.htm".
Message: Locale string - es_ES
Message: Got String property "docroot" for channel "HarnessPortletChannel" = "/portalserver/docs/".
Message: Got String property "contentPage" for channel "HarnessPortletChannel" = "HarnessPortletContent.jsp".
Message: Boolean property "showExceptions" for channel "HarnessPortletChannel" does not exist.
Message: Locale string - es_ES
Message: Obtained client type - html.
Message: Client path - null
Message: Obtained template path: C:\Documents and Settings\jbonardi\jstudio_6ee_user\ps\desktop\default\HarnessPortletChannel\HarnessPortletContent.jsp
Message: Locale string - es_ES
Message: Obtained client type - html.
Message: Client path - null
Message: Obtained template most specific path: C:\Documents and Settings\jbonardi\jstudio_6ee_user\ps\desktop\default\HarnessPortletChannel\HarnessPortletContent.jsp
Message: Obtained client type - html.
Message: Got collection property "hasHelpByMimeType" for channel "portlet_GoogleSearchPortlet.
Message: Got localized String property "title" for channel "portlet_GoogleSearchPortlet" = "__Portlet__portlet.GoogleSearchPortlet".
Message: Boolean property "isEditable" for channel "portlet_GoogleSearchPortlet" exists.
Message: Got String property "entityIDPrefix" for channel "portlet_GoogleSearchPortlet" = "portlet|GoogleSearchPortlet".
Message: Got session property "javax.portlet.portletc.renderParams.portlet|GoogleSearchPortlet|portlet_GoogleSearchPortlet" = "null".
Message: Got session property "javax.portlet.portletc.portlet|GoogleSearchPortlet|portlet_GoogleSearchPortlet.isTarget" = "null".
Message: Set session property "javax.portlet.portletc.portlet|GoogleSearchPortlet|portlet_GoogleSearchPortlet.isTarget" to object "false".
Message: Obtained client type - html.
Message: Collection property "roleMap" for channel "portlet_GoogleSearchPortlet" does not exist.
Message: Collection property "userInfoMap" for channel "portlet_GoogleSearchPortlet" does not exist.
Message: Boolean property "showExceptions" for channel "HarnessPortletChannel" does not exist.
Error: Error in provider getContent()
<<<<<<<< Stack Backtrace:
com.sun.portal.providers.ProviderException: JSPProvider.processJSPFile(): jsp=HarnessPortletContent.jsp, java.lang.NullPointerException
     at com.sun.portal.providers.jsp.JSPProvider.processJspFile(JSPProvider.java:880)
     at com.sun.portal.providers.jsp.JSPProvider.processJspFile(JSPProvider.java:777)
     at com.sun.portal.providers.jsp.JSPProvider.getContent(JSPProvider.java:546)
     at com.sun.portal.harness.HarnessPortletProvider.getContent(Unknown Source)
     at com.sun.portal.harness.ProviderHarness.createContent(Unknown Source)
     at com.sun.portal.harness.ProviderHarness.initProvider(Unknown Source)
     at com.sun.portal.harness.ProviderHarness.getHarness(Unknown Source)
     at org.apache.jsp.desktop_0005cdefault_0005charness_0005cPSSimTarget$jsp._jspService(desktop_0005cdefault_0005charness_0005cPSSimTarget$jsp.java:73)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet$JspServletWrapper.service(IDEJspServlet.java:173)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet.serviceJspFile(IDEJspServlet.java:246)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet.service(IDEJspServlet.java:339)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:683)
     at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
     at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
     at org.apache.jsp.PSSim$jsp._jspService(PSSim$jsp.java:84)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet$JspServletWrapper.service(IDEJspServlet.java:173)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet.serviceJspFile(IDEJspServlet.java:246)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet.service(IDEJspServlet.java:339)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:226)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.netbeans.modules.web.monitor.catalina.MonitorValve.invoke(MonitorValve.java:148)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2349)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:469)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1040)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1151)
     at java.lang.Thread.run(Thread.java:534)
java.lang.NullPointerException
     at com.sun.portal.harness.HarnessPortletProvider.doGetContent(Unknown Source)
     at _jspsC_0003a._Documents_00020and_00020Settings._jbonardi._jstudio_6ee_user._ps._desktop._default._HarnessPortletChannel._HarnessPortletContent_jsp._jspService(_HarnessPortletContent_jsp.java:215)
     at com.sun.portal.providers.jsp.jasper3.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sun.portal.providers.jsp.JspServletWrapper.service(JspServletWrapper.java:182)
     at com.sun.portal.providers.jsp.JSPProvider.processJspFile(JSPProvider.java:863)
     at com.sun.portal.providers.jsp.JSPProvider.processJspFile(JSPProvider.java:777)
     at com.sun.portal.providers.jsp.JSPProvider.getContent(JSPProvider.java:546)
     at com.sun.portal.harness.HarnessPortletProvider.getContent(Unknown Source)
     at com.sun.portal.harness.ProviderHarness.createContent(Unknown Source)
     at com.sun.portal.harness.ProviderHarness.initProvider(Unknown Source)
     at com.sun.portal.harness.ProviderHarness.getHarness(Unknown Source)
     at org.apache.jsp.desktop_0005cdefault_0005charness_0005cPSSimTarget$jsp._jspService(desktop_0005cdefault_0005charness_0005cPSSimTarget$jsp.java:73)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet$JspServletWrapper.service(IDEJspServlet.java:173)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet.serviceJspFile(IDEJspServlet.java:246)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet.service(IDEJspServlet.java:339)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:683)
     at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
     at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:497)
     at org.apache.jsp.PSSim$jsp._jspService(PSSim$jsp.java:84)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet$JspServletWrapper.service(IDEJspServlet.java:173)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet.serviceJspFile(IDEJspServlet.java:246)
     at org.netbeans.modules.tomcat.tomcat40.runtime.IDEJspServlet.service(IDEJspServlet.java:339)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:226)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.netbeans.modules.web.monitor.catalina.MonitorValve.invoke(MonitorValve.java:148)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2349)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:469)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:644)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:646)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:483)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1040)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1151)
     at java.lang.Thread.run(Thread.java:534)
>>>>>>>>
Message: Got String property "width" for channel "HarnessPortletChannel" = "thick".

You�ve got to unmount the portal server fs from your project, disable the portlet builder plugin (Tools->options->,,,PortletBuilder) then erase the ps folder inside your ide profile and then start the portlet builder module again. Try to simulate it again and it should work.
Regards,
Pablo.

Having an issue with event handling - sql database & java gui

HI all, have posted this on another forum but I think this is the correct one to post on. I am trying to construct this hybrid of java and mysql. the data comes from a mysql database and I want it to display in the gui. this I have achieved thus far. However I have buttons that sort by surname, first name, ID tag etc....I need event handlers for these buttons but am quite unsure as to how to do it. any help would be much appreciated. Thanks in advance.
/* Student Contact Database GUI
* Phillip Wells
import java.awt.BorderLayout;
// imports java class. All import class statements tell the compiler to use a class that is defined in the Java API.
// Borderlayout is a layout manager that assists GUI layout.
import javax.swing.*;               // imports java class. Swing enables the use of a GUI.
import javax.swing.JOptionPane;     // imports java class. JOptionPane displays messages in a dialog box as opposed to a console window.
import javax.swing.JPanel;          // imports java class. A component of a GUI.
import javax.swing.JFrame;          // imports java class. A component of a GUI.
import javax.swing.JButton;          // imports java class. A component of a GUI.
import javax.swing.JScrollPane;     // imports java class. A component of a GUI.
import javax.swing.JTable;          // imports java class. A component of a GUI.
import java.awt.*;               // imports java class. Similar to Swing but with different components and functions.
import java.awt.event.*;          // imports java class. Deals with events.
import java.awt.event.ActionEvent;     // imports java class. Deals with events.
import java.awt.event.ActionListener;     // imports java class. Deals with events.
import java.sql.*;               // imports java class. Provides API for accessing and processing data stored in a data source.
import java.util.*;               // imports java class. Contains miscellaneous utility classes such as strings.
public class studentContact extends JFrame {     // public class declaration. The �public� statement enables class availability to other java elements.
private JPanel jContentPane; // initialises content pane
private JButton snam, id, fname, exit; // initialises Jbuttons
String firstname = "firstname"; //initialises String firstname
String secondname = "secondname"; //initialises String
public studentContact() {
Vector columnNames = new Vector();      // creates new vector object. Vectors are arrays that are expandable.
Vector data = new Vector();
initialize();
try {
// Connect to the Database
String driver = "com.mysql.jdbc.Driver"; // connect to JDBC driver
String url = "jdbc:mysql://localhost/Studentprofiles"; //location of Database
String userid = "root"; //user logon information for MySQL server
String password = "";     //logon password for above
Class.forName(driver); //reference to JDBC connector
Connection connection = DriverManager.getConnection(url, userid,
password);     // initiates connection
// Read data from a table
String sql = "Select * from studentprofile order by "+ firstname;
//SQL query sent to database, orders results by firstname.
Statement stmt = connection.createStatement
(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
//statement to create connection.
//Scroll sensitive allows movement forth and back through results.
//Concur updatable allows updating of database.
ResultSet rs = stmt.executeQuery(sql); // executes SQL query stated above and sets the results in a table
ResultSetMetaData md = rs.getMetaData();     // used to get the properties of the columns in a ResultSet object.
int columns = md.getColumnCount(); //
for (int i = 1; i <= columns; i++) {
columnNames.addElement(md.getColumnName(i));     // Get column names
while (rs.next()) {
Vector row = new Vector(columns);          // vectors data from table
for (int i = 1; i <= columns; i++) {
row.addElement(rs.getObject(i));     // Get row data
data.addElement(row);     // adds row data
rs.close();
stmt.close();
} catch (Exception e) {     // catches exceptions
System.out.println(e);     // prints exception message
JTable table = new JTable(data, columnNames) {     //constructs JTable
public Class getColumnClass(int column) {
for (int row = 0; row < getRowCount(); row++) {
Object o = getValueAt(row, column);
if (o != null) {
return o.getClass();
return Object.class;
JScrollPane scrollPane = new JScrollPane( table ); // constructs scrollpane 'table'
getContentPane().add(new JScrollPane(table), BorderLayout.SOUTH); //adds table to a scrollpane
private void initialize() {
this.setContentPane(getJContentPane());
this.setTitle("Student Contact Database");     // sets title of table
ButtonListener b1 = new ButtonListener();     // constructs button listener
snam = new JButton ("Sort by surname");     // constructs Jbutton
snam.addActionListener(b1);     // adds action listener
jContentPane.add(snam);          //adds button to pane
id = new JButton ("Sort by ID");     // constructs Jbutton
id.addActionListener(b1);     // adds action listener
jContentPane.add(id);          //adds button to pane
fname = new JButton ("Sort by first name");     // constructs Jbutton
fname.addActionListener(b1);     // adds action listener
jContentPane.add(fname);          //adds button to pane
exit = new JButton ("Exit");     // constructs Jbutton
exit.addActionListener(b1);     // adds action listener
jContentPane.add(exit);          //adds button to pane
private JPanel getJContentPane() {
if (jContentPane == null) {
jContentPane = new JPanel();          // constructs new panel
jContentPane.setLayout(new FlowLayout());     // sets new layout manager
return jContentPane;     // returns Jcontentpane
private class ButtonListener implements ActionListener {     // create inner class button listener that uses action listener
public void actionPerformed (ActionEvent e)
if (e.getSource () == exit)     // adds listener to button exit.
System.exit(0);     // exits the GUI
if (e.getSource () == snam)
if (e.getSource () == id)
if (e.getSource () == fname)
public static void main(String[] args) {     // declaration of main method
studentContact frame = new studentContact();     // constructs new frame
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);     //exits frame on closing
frame.setSize(600, 300);          // set size of frame
frame.setVisible(true);     // displays frame
}

OK, so you've got this code here:
private class ButtonListener implements ActionListener {
public void actionPerformed (ActionEvent e) {
    if (e.getSource () == exit) {
      System.exit(0); // exits the GUI
    if (e.getSource () == snam) {
    if (e.getSource () == id) {
}Perfect fine way to do this; although I think creating anonymous would be a bit cleaner:
snam.addActionListener(new actionListener() {
public void actionPerformed(ActionEvent ae) {
});But I think that the real question you have is "what do I put for logic when the JButtons are hit?", right?
I would answer that you want to dynamically build your SQL statement changing your ordering based on the button.
So you'd have a method that builds the SQL based on what you pass in - so it takes one argument perhaps?
private static final int NAME = 1;
                         ID = 2;
/* ... some code ... */
snam.addActionListener(new actionListener() {
public void actionPerformed(ActionEvent ae) {
    buildSQL(NAME);
/* ... some code ... */
private void buildSQL(int type) {
if ( type == NAME ) {
/* ... build SQL by name ... */
else if ( type == ID ) {
/* ... build SQL by id ... */
}That kind of thing.
Or you might choose to have several build methods with no parameter type; each building the SQL differently, and calling whichever one you need. I did not read your entire pgm, so I don't know how you'd want to organize it. You need to ask more specific questions at that point.
~Bill

How to use VPD in Java/Struts JSP portlet with SSO

DB = 10.1.0 (Standard Edition)
Portal = 9.0.4.1
10gAS = 9.4.0.1 (EE)
I am in the beginning stages of developing some portlets that will be Java/Struts JSP based. We use SSO and have implemented some VPD security in our DB by creating some views that use SYS_CONTEXT('USERENV','CURRENT_USERID').
These Java portlets connect to the DB using a defined JDBC connection for the OC4J container they are deployed in. The problem I'm having is that the call to SYS_CONTEXT is returning the user of the JDBC connection and not the SSO user. So far I have been unable to find any documentation that will point me in the right direction to get this configured properly.
Deployment and configuration are as follows. Deploy war file to custom container on app server. In the configuration of the OC4J contain the app used the containers default JDBC connection using the oracle.jdbc.pool.OracleDataSource class. Max and Min open connections are blank.
In the portal configuration under Navigator - Providers tab we defined a new Registered Provider. In the Connections tab for the provider we Specify the URL Http://hpsrv02.simsol.com:7777/discovery-portlets/providers. Under "Specify how the user's identity will be set by the Portal..." the "The user has the same identity in the Web providers application as in the Single Sign-On identity" is selected. Under "User/Session Information" User is selected and Login Frequency is set to "Once per user session". Then we created a new portal page and created a new portlet with the new provider.
Just an FYI I do have Discoverer working with VPD and any report portlet, dynamic page portlet and any other type of portlet I created all work correctly with VPD it is just the java/struts one that is not working.
So does any one have any insight into what configuration steps I have missed?
Any help is much appreciated,
Ed Klinger

Ed,
Your java code must get the SSO username (it's just a HTTP header variable) :
ie: code sample...
Enumeration e = request.getHeaderNames();
while (e.hasMoreElements()) {
String name = (String)e.nextElement();
String value = request.getHeader(name);
out.println("<br> "+name + " = " + value);
if (name.toUpperCase().trim().equals("OSSO-USER-DN")){
dn_user=value;
out.println("<br>******** USER DN = "+dn_user);
Then, the SSO username can be used in the VPD policy.
Note that there is a difference between the sso username and the database username . SSO username is not known by database (CURRENT_USERID will return a database username)
Discoverer worked OK in your case with the SYS_CONTEXT (.. CURRENT_USERID) because authentication is made by database user, probably.

How to use Java with PL/SQL commands to send an email with attachment

Apologizes in advance if this is the wrong place to ask the question.
I need to use Java with PL/SQL commands to send an email with attachment. My java application runs from the command line and does some magic to gather info from an Oracle 11g db. If the DB has sendmail configured, I'd like to send the results of the data gathering as an attachment to the email addresses. I'm not sure how to do this. I've been reading up on on PL/SQL can send email with UTL_SMTP - with attachments. I'm just not sure how to translate that into being triggered by my Java application. Any suggestions or pointers on what I should read would be appreciated.
Background - I've been programming in Java for 10+ years, but this is my first time using databases. I also have been on these forums for a long time, but lost my profile when it was switched to Oracle.
Thanks for all help.

user13726880 wrote:
The original requirements were put together and given to me, an Oracle newbie. They expected the Java app to use something intrinsic to Oracle and Unix sendmail. To solve my problem, I use a JDBC connection to run some SQL commands. I take that data, format it and send the results by email to the user. By default the requirement is to send it as an HTML attachment using Unix 'sendmail'. So I do that using Runtime exec. I have also added JavaMail functionality as an alternative to sendmail. It works great and as expected.Sounds like a reasonable solution.
Note however that PL/SQL itself can send email. And PL/SQL can call unix sendmail too.
However myself I would have done it in java with JavaMail.

Create Oracle Text stoplist in Java with PL/SQL

Hi, I need help with this
I do connection Oracle database with Java by using JDBC. I need create stoplist in my
Oracle Text application that I create with PL/SQL procedure. I want to add stopwords to
this stoplist directly in Java therefore I must create this procedure in Java.
This procedure is:
begin
ctx_ddl.create_stoplist('mystop', 'BASIC_STOPLIST');
ctx_ddl.add_stopclass('mystop', 'NUMBER');
ctx_ddl.add_stopword('mystop', 'word1');
end;
CTX_DDL is package in Oracle Text. This procedure runs functions directly on Oracle no
problems. I don´t know - how create this procedure in Java and run this in Oracle by
using JDBC. Can you anybody help, please?

> The problem is that we have a compatibility problem with LDAP. When I try to retrieve information
in LDAP, I have strange characters that appears instead of accents like é,è,ë or whatever... someone
in my developement team has the same problem and he solved it using java.naming.ldap.version and put
it in version 2. The problem is that he developed in Java and I am in PL/SQL. That's the problem...
No. That is not the problem.
The problem is that you have no clue what the problem is, and now jump at the first available thing that seems to be a solution for this unknown problem. And who knows just how many other problems this so-called solution will now introduce... never mind whether or not the root cause of the original problem will be solved by this solution.
Software engineering does not work like this.
Software engineering says: Identify the Problem.
Analyse the Problem.
Solve the ProblemAll you have identified is a symptom of some problem. A character set issue. How about identifying the actual problem and then solving that problem comprehensively?

WSRP or JSR-168 Portlets with PDK-Java

Is it possible to create WSRP or JSR-168 compliant portlets with PDK-Java or Bi beans?
Thanks,

When PDK-Java was designed 4-5 years ago, there was no portlet standard on the horizon. While from an architecture point of view PDK-Java is very similar to WSRP, it uses a proprietary protocol. Therefore you can't expose PDK-Java portlets through WSRP.
You can, however, leverage the BI-beans in JSR 168 portlets, just like in any other Java environment.
Peter

XDK APIs (C/C++/Java) and tools can also be used with MS SQL Server

I want to know if XDK APIs (Java or C/C++ APIs especially) and tools can be used with MS SQL Server or not?
I want to write a simple application that updates XML ( acordXML used for insurance) document into SQL Server tables. Of course I am assuming to transform into appropriate XSU APIs format.

No. Use SQLXML instead on a SQL Server.

Universe Builder with MS SQL Server 2005 Server Management Studio - Bridges

Hi all!
I am new to BO and i'm trying to create a universe from a sql database i created with MS SQL Server Management Studio.
I noticed that there isn't any bridge option for sql database.
Am i suppose to do some kind of conversion or is there an option that i left out?
Oh and i'm currently using BusinessObjects XI 3.1 Edge Series Universe Builder.
Thanks
Jazreeel

Hello Jazreeel/ALL,
Could you please share what you did to build your Universe from MS Sql? I am at that same roadblock now myself. I know I can use Designer to manually connect to the SQL DB and painstakingly set it up table by table, but is there not an easier way, where Universe Builder or Designer can read the full database schema and and build the Universe from there?
SAP support has told me that the Designers auto features <Detect Joins, Links, etc> should not be used in a production enviroment, that I need to add all the tables <747 of them> manually and then have a Developer one by one create all the Joins, Links, Cardinalities, resolve the loops etc. That is very teadious to do, and makes maintaining the Universe a nightmare when different software versions change our database tables from time to time.
There's got to be an easier way, I just can't find it. Like you, I instantly felt that Builder should have a SQL bridge to be able to read what it needs from the SQL DB and build the Universe. However, that option does not seem to exist.
Appreciate any help!!
Carl

Reporting with Report Builder 3.0 and SQL Server 2008 R2

Hi everyone
I'm trying really hard to find books about Report Builder 3.0 or SQL Server 2008 R2
I found the following books on the "learn" site, sadly they do not cover Report Builder 3.0 or SQL Server 2008 R2 since there all too old.
Microsoft® SQL Server® 2008 Analysis Services Step by Step
Microsoft® SQL Server® 2008 MDX Step by Step
Microsoft® SQL Server® 2008 Reporting Services Step by Step
What are good books (like the ones above) for the newest system?

Hello wishmasterIN,
Thank you to post your question on TechNet forum.
Based on my experience, the books are always delayed to the new technology, since the author need time to summarize and analyze the new features in the new product or technology, write it down and publish it. If you want to have a quick learning about the
new technology, MSDN library is a good place. It can be a cookbook for you. It contains some detail steps for tools, such as Report Builder or BIDS. It also contains many new features introduction. It is always very useful for you to understand the new features.
In addition, it is based on web and many links make you can jump to the other technical point freely. The most important is all of these is free and all the information will be updated if the new feature is released.
In short, if you want to learn the latest technology about Microsoft product, MSDN is a good choice. I hope my introduction is helpful to you.
Regards,
Edward
Edward Zhu
TechNet Community Support

How to generate XML from relational data : PL/SQL or Java

I'm new to Oracle XML and would appreciate some advice. I've been asked to generate XML documents from data stored in relational tables. The XML documents must be validated against a DTD. We will probably want to store the XML in the database.
I've seen a PL/SQL based approach as follows :
1.Mimic the structure of the DTD using SQL object types 2.Assign the relational data to the object type using PL/SQL as required
3.Use the SYS_XMLGEN package to render the required XML documents from the SQL objects
However, creating the object types seems to be quite time consuming (step 1 above) for anything other than the simplest of XML documents.
I've also seen that there is the Java based approach, namely :
1. Use the XML generator to build Java classes based on a DTD.
2. Use these classes to build the required XML
On the face of it, the Java based approach seems simpler. However, I'm not that familiar with Java.
Which is the best way to proceed ? Is the PL/SQL based approach worth pursuing or should I bite the bullet and brush up my Java ?
Is it possible to use a combination of PL/SQL and Java to populate the dtd generated java classes (step 2 of the Java approach) to reduce my learning curve ?
Thanks in advance

To help answer your questions:
1) Now, in 9iR2, you can use SQL/XML as another choice.
2) You can also use XSU to generate the XML and use XSLT to transform it to a desired format instead of using object views if possible.
3) XDK provide Class generator support to populate XML data to Java classes.

PL/SQL and Java Swing interface

Everybody in this forum knows that Oracle is the best database around
with many functionalities, stability, performance, etc. We also know
that PL/SQL is a great language to manipulate information directly
in the database with many built in functions, OOP capability,
transaction control, among other features. Today an application that
manipulates information, which needs user interface, requires components
to be developed using different technologies and normally running in
different servers or machines. For example, the interface is done using
a dynamic HTML generator like JSP, PHP, PL/SQL Web Toolkit, etc.
This page is executed in an application server like Oracle iAS or
Tomcat, just to name two, which in turn access a database like Oracle to
build the HTML. Also rich clients like Java applets require an intermediate
server to access the database (through servlets for example) although
it is possible to access the database directly but with security issues.
Another problem with this is that complexity increases a lot, many
technologies, skills and places to maintain code which leads to a greater
failure probability. Also, an application is constantly evolving, new
calculations are added, new tables, changed columns. If you have an
application with product code for example and you need to increase its
size, you need to change it in the database, search for all occurrences
of it in the middle-tier code and perhaps adjust interfaces. Normally
there is no direct dependency among the tier components. On another
issue, many application interfaces today are based on HTML which doesn't
have interactive capabilities like rich-client interfaces. Although it
is possible to simulate many GUI widgets with JavaScript and DHTML, it is
far from the interactive level we can accomplish in rich clients like
Java Swing, Flash MX, Win32, etc. HTML is also a "tag-based" language
originally created to publish documents so even small pages require
many bytes to be transmitted, far beyond of what we see on the screen.
Even in fast networks you have a delay time to wait the page to be
loaded. Another issue, the database is in general the central location
for all kinds of data. Most applications relies on it for security,
transaction and availability. My proposal is to use Oracle as the
central location for interface, processing and data. With this approach
we can create not only the data manipulation procedures in the database,
but procedures that also control and manage user interfaces. Having
a Oracle database as the central location for all components has many
advantages:
- Unique point of maintenance, backup and restore
- Integrated database security
- One language for everything, PL/SQL or Java (even both if desired)
- Inherited database cache, transaction and processing optimizations
- Direct access to the database dictionary
- Application runs on Oracle which has support for many platforms.
- Transparent use of parallel processing, clusters and future
background technologies
Regarding the interface, I already created a Java applet renderer
which receives instructions from the database on how to create GUI
objects and how to respond to events. The applet is only 8kb and can
render any Swing or AWT object/event. The communication is done
through HTTP or HTTPS using Oracles's MOD_PLSQL included in the Apache
HTTP server which comes with the database or application server (iAS).
I am also creating a database framework and APIs in PL/SQL to
create and manipulate the client interface. The applet startup is
very fast because it is very small, you don't need to download large
classes with the client interface. Execution is done "on-demand"
according to instructions received from the database. The instructions
are very optimized in terms of network bandwidth and based on preliminary
tests it can be up to 1/10 of a similar HTML screen. Less network usage
means faster response and means that even low speed connections will
have a good performance (a future development can be to use this in
wireless devices like PDAs e even cell phones, just an idea for now).
The applet can also be executed standalone by using Java Web Start.
With this approach no business code, except the interface, is executed
on the client. This means that alterations in the application are
dynamically reflected in the client, no need to "re-download" the
application. Events are transmitted when required only so network
usage is minimized. It is also possible to establish triggering
events to further reduce network usage. Since the protocol used is
HTTP (which is stateless), the database framework I am creating will
be responsible to maintain the state of connections, variables, locks
and session information, so the developer don't need to worry about it.
The framework will have many layers, from communication up to
application so there will be pre-built functions to handle queries,
pagination, lock, mail, log, etc. The final objective is to have a
rich client application integrated into the database with minimum
programming and maintenance requirements, not forgetting customization
capabilities. Below is a very small example of what can de done. A
desktop with two windows, each window with two fields, a button with an
image to switch the values, and events to convert the typed text when
leaving the field or double-clicking it. The "leave" event also has an
optimization to only be triggered when the text changes. I am still
developing the framework and adjusting the renderer but I think that all
technical barriers were transposed by now. The framework is still in
the early stages, my guess is that only 5% is done so far. As a future
development even an IDE can be created so we have a graphical environment
do develop applications. I am willing to share this with the PL/SQL
community and listen to ideas and comments.
Example:
create or replace procedure demo1 (
jre_version in varchar2 := '1.4.2_01',
debug_info in varchar2 := 'false',
compress_buffer in varchar2 := 'false',
optimize_buffer in varchar2 := 'true'
) as
begin
interface.initialize('demo1_init','JGR Demo 1',jre_version,debug_info,compress_buffer,optimize_buffer);
end;
create or replace procedure demo1_init as
begin
toolkit.initialize;
toolkit.create_icon('icon',interface.global_root_url||'img/switch.gif');
toolkit.create_internal_frame('frame1','Frame 1',50,50,300,136);
toolkit.create_label('frame1label1','frame1',10,10,50,20,'Field 1');
toolkit.create_label('frame1label2','frame1',10,40,50,20,'Field 2');
toolkit.create_text_field('frame1field1','frame1',50,10,230,20,'Field 1','Field 1',focus_event=>true,mouse_event=>true);
toolkit.create_text_field('frame1field2','frame1',50,40,230,20,'Field 2','Field 2',focus_event=>true,mouse_event=>true);
toolkit.set_text_field_event('frame1field1',toolkit.focus_lost_event,'demo1_set_upper',toolkit.get_text_method,'FIELD 1','false');
toolkit.set_text_field_event('frame1field2',toolkit.focus_lost_event,'demo1_set_upper',toolkit.get_text_method,'FIELD 2','false');
toolkit.set_text_field_event('frame1field1',toolkit.mouse_double_clicked_event,'demo1_set_lower',toolkit.get_text_method,'field 1','false');
toolkit.set_text_field_event('frame1field2',toolkit.mouse_double_clicked_event,'demo1_set_lower',toolkit.get_text_method,'field 2','false');
toolkit.create_button('button1','frame1',10,70,100,25,'Switch','Switch the values of "Field 1" and "Field 2"','S','icon');
toolkit.set_button_event('button1',toolkit.action_performed_event,'demo1_switch_fields(''frame1field1'',''frame1field2'')','frame1field1:'||toolkit.get_text_method||',frame1field2:'||toolkit.get_text_method);
toolkit.create_internal_frame('frame2','Frame 2',100,100,300,136);
toolkit.create_label('frame2label1','frame2',10,10,50,20,'Field 1');
toolkit.create_label('frame2label2','frame2',10,40,50,20,'Field 2');
toolkit.create_text_field('frame2field1','frame2',50,10,230,20,'Field 1','Field 1',focus_event=>true,mouse_event=>true);
toolkit.create_text_field('frame2field2','frame2',50,40,230,20,'Field 2','Field 2',focus_event=>true,mouse_event=>true);
toolkit.set_text_field_event('frame2field1',toolkit.focus_lost_event,'demo1_set_upper',toolkit.get_text_method,'FIELD 1','false');
toolkit.set_text_field_event('frame2field2',toolkit.focus_lost_event,'demo1_set_upper',toolkit.get_text_method,'FIELD 2','false');
toolkit.set_text_field_event('frame2field1',toolkit.mouse_double_clicked_event,'demo1_set_lower',toolkit.get_text_method,'field 1','false');
toolkit.set_text_field_event('frame2field2',toolkit.mouse_double_clicked_event,'demo1_set_lower',toolkit.get_text_method,'field 2','false');
toolkit.create_button('button2','frame2',10,70,100,25,'Switch','Switch the values of "Field 1" and "Field 2"','S','icon');
toolkit.set_button_event('button2',toolkit.action_performed_event,'demo1_switch_fields(''frame2field1'',''frame2field2'')','frame2field1:'||toolkit.get_text_method||',frame2field2:'||toolkit.get_text_method);
end;
create or replace procedure demo1_set_upper as
begin
toolkit.set_string_method(interface.global_object_name,toolkit.set_text_method,upper(interface.array_event_value(1)));
toolkit.set_text_field_event(interface.global_object_name,toolkit.focus_lost_event,'demo1_set_upper',toolkit.get_text_method,upper(interface.array_event_value(1)),'false');
end;
create or replace procedure demo1_set_lower as
begin
toolkit.set_string_method(interface.global_object_name,toolkit.set_text_method,lower(interface.array_event_value(1)));
toolkit.set_text_field_event(interface.global_object_name,toolkit.mouse_double_clicked_event,'demo1_set_lower',toolkit.get_text_method,lower(interface.array_event_value(1)),'false');
end;
create or replace procedure demo1_switch_fields (
field1 in varchar2,
field2 in varchar2
) as
begin
toolkit.set_string_method(field1,toolkit.set_text_method,interface.array_event_value(2));
toolkit.set_string_method(field2,toolkit.set_text_method,interface.array_event_value(1));
toolkit.set_text_field_event(field1,toolkit.focus_lost_event,'demo1_set_upper',toolkit.get_text_method,upper(interface.array_event_value(2)),'false');
toolkit.set_text_field_event(field2,toolkit.focus_lost_event,'demo1_set_upper',toolkit.get_text_method,upper(interface.array_event_value(1)),'false');
toolkit.set_text_field_event(field1,toolkit.mouse_double_clicked_event,'demo1_set_lower',toolkit.get_text_method,lower(interface.array_event_value(2)),'false');
toolkit.set_text_field_event(field2,toolkit.mouse_double_clicked_event,'demo1_set_lower',toolkit.get_text_method,lower(interface.array_event_value(1)),'false');
end;

Is it sound like Oracle Portal?
But you want to save a layer 9iAS.
Basically, that was the WebDB.(Oracle changed the name to Portal when version 3.0)
Over all, I agree with you.
>>Having a Oracle database as the central location for all components has many
>>advantages:
>>
>>- Unique point of maintenance, backup and restore
>>- Integrated database security
>>- One language for everything, PL/SQL or Java (even both if desired)
>>- Inherited database cache, transaction and processing optimizations
>>- Direct access to the database dictionary
>>- Application runs on Oracle which has support for many platforms.
>>- Transparent use of parallel processing, clusters and future
>>background technologies
I would like to build 'ZOPE' inside Oracle DB as a back-end
Using Flash MX as front-end.
Thomas Ku.

Issue with passing parameters through Java-JSP in a report with cross tab

Can anyone tell me, if there's a bug in Java SDK in passing the parameters to a report (rpt file) that has a cross tab in it ?
I hava report that works perfectly fine
   with ODBC through IDE and also through browser (JSP page)
(ii)    with JDBC in CR 2011 IDE
the rpt file has a cross tab and accpts two parameters.
When I run the JDBC report through JSP the parameters are never considered. The same report works fine when I remove the cross tab and make it a simple report.
I have posted this to CR SDK forum and have not received any reply. This have become a blocker and because of this our delivery has been postponed. We are left with two choices,
   Re-Write the rpt files not to have cross-tabs - This would take significant effort
OR
(ii) Abandon the crystal solution and try out any other java based solutions available.
I have given the code here in this forum posting..
CR 2011 - JDBC Report Issue in passing parameters
TIA
DRG
TIA
DRG

Mr.James,
Thank you for the reply.
As I stated earlier, we have been using the latest service pack (12) when I generated the log file that is uploaded earlier.
To confirm this further, I downloaded the complete eclipse bundle from sdn site and reran the rpt files. No change in the behaviour and the bug is reproducible.
You are right about the parameters, we are using {?@Direction} is: n(1.0)
{?@BDate} is: dt(d(1973-01-01),t(00:00:00.453000000)) as parameters in JSP and we get 146 records when we directly execute the stored procedure. The date and the direction parameter values stored in design time are different. '1965-01-01' and Direction 1.
When we run the JSP page, The parameter that is passed through the JSP page, is displayed correctly on the right top of the report view. But the data that is displayed in cross tab is not corresponding to the date and direction parameter. It corresponds to 1965-01-01 and direction 1 which are saved at design time.
You can test this by modifying the parameter values in the JSP page that I sent earlier. You will see the displayed data will remain same irrespective of the parameter.
Further to note, Before each trial run, I modify the parameters in JSP page, build them and redeploy so that caching does not affect the end result.
This behaviour, we observe on all the reports that have cross-tabs. These reports work perfectly fine when rendered through ODBC-ActiveX viewer and the bug is observable only when ran through Java runtime library. We get this bug on view, export and print functionalities as well.
Additionally we tested the same in
    With CR version 2008 instead of CR 2011.
(ii)   Different browsers ranging from IE 7 through 9 and FF 7.
The complete environment and various softwares that we used for this testing are,
OS      : XP Latest updates as on Oct 2011.
App Server: GlassFish Version 3 with Java version 1.6 and build 21
Database server ; SQL Server 2005. SP 3 - Dev Ed.
JTds JDBC type 4 driver version - 1.2.5 from source forge.
Eclipse : Helios along with crystal libraries directly downloaded from SDN site.
I am uploading the log file that is generated when rendering the rpt for view in IE 8
Regards
DRG

Building portlets with PL/SQl vs java

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