Accessing objects from an existing JVM on Windows

I have a Java class that is running in an existing JVM which is running on local windows workstation. Is there a way I can access any methods or objects from the running Java class and other objects running inside the JVM from C or C++ code using Invocation API?. I know there is a way for us to ATTACH to a JVM that was created from C/C++ but I am looking for a way to access objects from a JVM that was started either as a service or started by other means.

How did you start the C++ code?
It is possible to load the c++ dll within your Java code then you may access the c++ code by using native methods out of Java. By calling the c++ method you have the pointer to your Java object and my use it (=> don't forget to use global references).
If you have started both seperatly C++ in an extra process and Java in an extra process then it can be complicated. Guess that there aren't any easy solution.
This mean: either you have your Java code loading a dll or you have C++ creating a JVM...

Similar Messages

Creating new graphics object from a existing one and sending it for print

Hello,
i have a graphics object which is big in size, I am creating a new graphics object from the existing one as given below
//map is a graphic object
Graphic g1 = (Graphic)map.create(x,y,width,height);
Graphic g2 = (Graphic)map.create(x,y,width1,height1);
Graphic g3 = (Graphic)map.create(x,y,width2,height2);
arrayList.add(g1);
arrayList.add(g2);
arrayList.add(g3);
Now I want to send the graphic object g1,g2,g3 for print in the method
public int print (Graphics g, PageFormat pf, int idx) throws PrinterException {
// Printable's method implementation
if (curPageFormat != pf) {
curPageFormat = pf;
pages = repaginate (pf);
if (idx >= 3)) {
return Printable.NO_SUCH_PAGE;
g = (Graphics) arrayList.get(idx);
return Printable.PAGE_EXISTS;
This is not working... what is wrong. can anybody suggest..
I tried standardprint.java to print a object inside a scrollpane, it is not printing the entire diagram. so I am thinking of something like this.... Please let me know what to do....
Thanks
Serj

The easy way to do this is create a copy using Windows Explorer.
Open the project and go to File > Rename.
Then you have your 2013 ready made project.
See www.grainge.org for RoboHelp and Authoring tips
@petergrainge

Is there a way to access object from other schema?

1. Is there a way to access object from other schema
Without using synonym/public synonym without prefixing schema owner?
2. If you do not see any object in all_objects by same name owned by connected user or public, can there still be objects hidden from this view? for instance synonyms created by SYSTEM
TIA for help

Well, you missed something somewhere. If there is no
ALTER SESSION SET CURRENT_SCHEMA=whoeverthen there must be either public synonym for the object as this shows:
SQL> CREATE USER a identified by a;
User created.
SQL> GRANT CREATE SESSION to a;
Grant succeeded.
SQL> CREATE USER b identified by b;
User created.
SQL> GRANT CREATE SESSION, CREATE PROCEDURE, CREATE PUBLIC SYNONYM to b;
Grant succeeded.
SQL> connect b/b
Connected.
SQL> CREATE PACKAGE test AS
2     PROCEDURE testit;
3 END;
4 /
Package created.
SQL> CREATE PACKAGE BODY test AS
2 PROCEDURE testit IS
3 BEGIN
4     NULL;
5 END;
6 END;
7 /
Package body created.
SQL> connect a/a
Connected.
SQL> desc b.test
ERROR:
ORA-04043: object b.test does not exist
SQL> connect b/b
Connected.
SQL> GRANT EXECUTE ON test TO a;
Grant succeeded.
SQL> connect a/a
Connected.
SQL> desc b.test;
PROCEDURE TESTIT
SQL> desc test;
ERROR:
ORA-04043: object test does not exist
SQL> connect b/b
Connected.
SQL> CREATE PUBLIC SYNONYM test FOR TEST;
Synonym created.
SQL> connect a/a
Connected.
SQL> desc test
PROCEDURE TESTITAnother possibility without public synonyms is that crv had granted the other user privileges on some object, and the other user creates a private synonym for that. When crv granted privileges on a different object with the same name, the private synonym became valid again. Something like:
SQL> connect /
Connected.
SQL> drop public synonym test;
Synonym dropped.
SQL> GRANT CREATE SYNONYM TO a;
Grant succeeded.
SQL> connect a/a
Connected.
SQL> desc test;
ERROR:
ORA-04043: object test does not exist
SQL> desc b.test
PROCEDURE TESTIT
SQL> CREATE SYNONYM test FOR b.test;
Synonym created.
SQL> desc test;
PROCEDURE TESTIT
SQL> connect b/b
Connected.
SQL> REVOKE EXECUTE ON test FROM a;
Revoke succeeded.
SQL> connect a/a
Connected.
SQL> desc test;
ERROR:
ORA-04043: object "B"."TEST" does not exist
SQL> desc b.test
ERROR:
ORA-04043: object b.test does not exist
SQL> connect b/b
Connected.
SQL> DROP PACKAGE test;
Package dropped.
SQL> CREATE FUNCTION test (p_num IN NUMBER) RETURN NUMBER AS
2 BEGIN
3     RETURN p_num * 10;
4 END;
5 /
Function created.
SQL> GRANT EXECUTE ON test TO a;
Grant succeeded.
SQL> connect a/a
Connected.
SQL> desc test;
FUNCTION test RETURNS NUMBER
Argument Name                  Type                    In/Out Default?
P_NUM                          NUMBER                  INSo, I would go looking for the synonyms.
TTFN
John

32-bit JVM receiving Java objects from 64-bit JVM

Hi folks,
Question is: will there be problems for 32-bit JVM receiving Java objects from 64-bit JVM? and vice versa.
Our application client is running on 32-bit JVM, our server is running on 64-bit JVM. Client will send Java objects to server, and vice versa.
My past experience suggested when sending Java objects between client and server, both client and server needs to be compiled under the same JVM version. Any advice?
Christy

My past experience suggested when sending Java
objects between client and server, both client and
server needs to be compiled under the same JVM
version. Any advice?This is only a case if you omit explicit serialVersionUID. My advice is to ALWAYS specify it for classes you want to serialize over the wire or put into persistent storage. It is way too tricky to rely on default one to fail half a year later when some new programmer adds one new public method to a class.
Unless you need to deserialize already existing resources, there is no need to put any magic number in serialVersionUID - just put 1 for every class you create and possibly increase it by 1 every time you want to make incompatible version (which is not happening so often, as in real world you often try to stay as compatible as possible)

ADF - Accessing view object from a button in a window

Hi
I am using Jdeveloper 10.1.3.2.0 to build a Swing/ADF application.
I added a method to a view class to call a database procedure.
I use that view as a base of a jTable to display data in a window.
Now I need to call the method that I created in the view class from a button on the same window where I display the data, ideally using the same db connection.
I am quite new to ADF and I have no idea how to get a reference to the view instance in the button method to call my new method. How can I do that? Is there another way to achieve this?
Thanks!
Luis

You usually do this by creating the method at the application module level and then exposing it as a client method. You can then drag and drop it onto your form as a button.
See details in the ADF Developer Guide chapters 8.3-8.5:
http://download.oracle.com/docs/html/B25947_01/bcservices003.htm#sm0206

Accessing Objects from a Class

Hello,
I have a process that calls a method from a class, at runtime, the object creates a reference and in the reference I need to access an object, basically this is what I have at run time:
Object: WA_OBJECT
Reference:
If I double click on my object I get the following sub objects:
CL_PT_REQ_HEADER
   IF_PT_REQ_HEADER~CURRENT_VERSION
   IF_PT_REQ_HEADER~MAX_VERSION_NO
   IF_PT_REQ_HEADER~MY_REQUEST
   ITEM_TAB
if I double click on any of those items, it is fine in debugging, I can see the values, but in my program, I need to access the ITEM_TAB internal table, now I cannot use WA_OBJECT-ITEM_TAB. If I double click on the ITEM_TAB, now the main object becomes -ITEM_TAB[1], so cannot reference to that object in my program, so the question is how do I access the table?
Thanks for any answers.

Hello Enrique
ITEM_TAB is a <i>public </i>instance attribute of class CL_PT_REQ_HEADER. Thus, you can directly access them using
DATA:
ls_item    TYPE PTREQ_ITEMS_STRUC,
lo_item    TYPE IF_PT_REQ_ITEM.
LOOP AT wa_object->item_tab INTO ls_item.
    lo_item = ls_item-item.
ENDLOOP.
Regards
Uwe

What program do I use to access Iphoto from my Ipad to my windows computer

I am trying to organize my photos via Iphoto on my Ipad, but I keep getting messages to plug my Ipad into my computer
to delete "events" and "albums" that I do not want - and also to share my photos via Facebook. I have plugged into ITunes,
but my Iphoto app does not come up and I cannot see my photos. Please help -- very frustrating!!

Your windows machine has a library called my pictures. You can organize your pictures there. Put your events into subdirectories as you want them, then sync those directories to the pad.
You can get pictures from the pad to the computer when you are plugged in. Open 'my computer' and the pad should show up as a device, and from there you can select which pictures to upload to the computer.
I do not think the albums you create on the pad will migrate up to the computer, but subdirectories you set up on the computer will sync to the pad as events.

How do I access objects from the original Thread?

I have this simple JApplet that just makes a circle bounce around the screen. Here it is:
import java.awt.Color;
import javax.swing.JApplet;
import java.awt.Graphics;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
public class TestApplet3 extends JApplet implements MouseListener {
    private int lastX;          // x coordinate of circle
    private int lastY;          // y coordinate of circle
    private int d = 15;          // diameter of circle
    public void paint(Graphics g) {
    public void init() {
        addMouseListener(this);
    public void mouseClicked(MouseEvent event) {
        Graphics gx = this.getGraphics();
        for (int x = 0, y = 0, count = 0, horiz = 2, vert = 2, k = 2; count < 1000; x = x + horiz, y = y + vert, count++) {
            if ((x + d) >= 350) {
                horiz = -horiz;
            if ((x <= 0) && (horiz < 0)) {
                horiz = -horiz;
            if ((y + d) >= 200) {
                vert = -vert;
            if ((y <= 0) && (vert < 0)) {
                vert = -vert;
            gx.setColor(Color.WHITE);
            gx.fillOval(lastX, lastY, d, d);
            gx.setColor(Color.RED);
            lastX = x;
            lastY = y;
            gx.fillOval(lastX, lastY, d, d);
            try {
                Thread.sleep(20);
            } catch (Exception ex) {
                System.out.println(ex.getMessage());
    public void mouseEntered(MouseEvent event) {
    public void mouseExited(MouseEvent event) {
    public void mousePressed(MouseEvent event) {
    public void mouseReleased(MouseEvent event) {
}But now I'd like to change it so that when the mouse is clicked a new Thread is spawned to run the code within the mouseClicked method..... this will allow multiple circles to bounce around and will also keep the applet responsive to new mouse clicks... so I've tried changing it below:
* To change this template, choose Tools | Templates
* and open the template in the editor.
package runninggraph;
* @author epuknol
import java.awt.Color;
import javax.swing.JApplet;
import java.awt.Graphics;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
public class TestApplet3 extends JApplet implements MouseListener, Runnable {
    private int lastX;          // x coordinate of circle
    private int lastY;          // y coordinate of circle
    private int d = 15;          // diameter of circle
    public void paint(Graphics g) {
    public void init() {
        addMouseListener(this);
    public void run() {
        Graphics gx = this.getGraphics();
        for (int x = 0, y = 0, count = 0, horiz = 2, vert = 2, k = 2; count < 1000; x = x + horiz, y = y + vert, count++) {
            if ((x + d) >= 350) {
                horiz = -horiz;
            if ((x <= 0) && (horiz < 0)) {
                horiz = -horiz;
            if ((y + d) >= 200) {
                vert = -vert;
            if ((y <= 0) && (vert < 0)) {
                vert = -vert;
            gx.setColor(Color.WHITE);
            gx.fillOval(lastX, lastY, d, d);
            gx.setColor(Color.RED);
            lastX = x;
            lastY = y;
            gx.fillOval(lastX, lastY, d, d);
            try {
                Thread.sleep(20);
            } catch (Exception ex) {
                System.out.println(ex.getMessage());
    public void mouseClicked(MouseEvent event) {
        (new Thread(new TestApplet())).start();
    public void mouseEntered(MouseEvent event) {
    public void mouseExited(MouseEvent event) {
    public void mousePressed(MouseEvent event) {
    public void mouseReleased(MouseEvent event) {
}but this doesn't work - I think because the this.getGraphics() doesn't refer back to the same object ..... I've tried some other things too - like defining the Graphics gx as a class variable and initializing it before spawning the new Thread ... but I can't access gx using that technique either.
Can somebody please help me get where I'm trying to go?
Thanks.

Aw heck, got bored. For instance, this draws a bunch of balls without a direct call to Thread anything:
BouncingCircles.java
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JPanel;
import javax.swing.Timer;
* creates a JPanel that draws bouncing circles within it.
* @author Pete
public class BouncingCircles {
private static final int DELAY = 15;
private static final int DIAMETER = 15;
private static final int DELTA = 5;
List<Ball> ballList = new ArrayList<Ball>(); // list of all balls
private JPanel mainPanel = new JPanel() {
    @Override
    protected void paintComponent(Graphics g) {
      super.paintComponent(g);
      myPaint(g);
// Swing Timer that tells the balls to move and tells the JPanel to then draw them
private Timer sTimer = new Timer(DELAY, new ActionListener() {
    public void actionPerformed(ActionEvent e) {
      timerAction(e);
public BouncingCircles() {
    mainPanel.setPreferredSize(new Dimension(400, 400));
    mainPanel.addMouseListener(new MouseAdapter() {
      @Override
      // add new ball with each mouse press
      public void mousePressed(MouseEvent e) {
        ballList.add(new Ball(e.getPoint(), new Point(DELTA, DELTA)));
    sTimer.start();
public JPanel getPanel() {
    return mainPanel;
private void timerAction(ActionEvent e) {
    Dimension d = mainPanel.getSize();
    for (Ball ball : ballList) {
      if (ball.getPoint().x < 0) {
        ball.setXDirectionRight(true);
      } else if (ball.getPoint().x + DIAMETER > d.width) {
        ball.setXDirectionRight(false);
      if (ball.getPoint().y < 0) {
        ball.setYDirectionDown(true);
      } else if (ball.getPoint().y + DIAMETER > d.height) {
        ball.setYDirectionDown(false);
      ball.increment();
    mainPanel.repaint();
   * paintComponent method draws all balls in List
   * @param g
private void myPaint(Graphics g) {
    g.setColor(Color.red);
    Graphics2D g2d = (Graphics2D) g;
    RenderingHints rh = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
        RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setRenderingHints(rh);
    for (Ball ball : ballList) {
      g.fillOval(ball.getPoint().x, ball.getPoint().y, DIAMETER, DIAMETER);
private class Ball {
    private Point point = new Point();
    private Point velocity = new Point();
    public Ball(Point point, Point velocity) {
      this.point = point;
      this.velocity = velocity;
    public Point getPoint() {
      return point;
    public Point getVelocity() {
      return velocity;
    public void increment() {
      point = new Point(point.x + velocity.x, point.y + velocity.y);
    public void setXDirectionRight(boolean right) {
      int newVelocityX = Math.abs(velocity.x);
      if (!right) {
        newVelocityX = -newVelocityX;
      velocity = new Point(newVelocityX, velocity.y);
    public void setYDirectionDown(boolean down) {
      int newVelocityY = Math.abs(velocity.y);
      if (!down) {
        newVelocityY = -newVelocityY;
      velocity = new Point(velocity.x, newVelocityY);
}And this displays the JPanel produced above in a standard JApplet.
BouncingCircApplet.java
import java.lang.reflect.InvocationTargetException;
import javax.swing.JApplet;
import javax.swing.SwingUtilities;
public class BouncingCircApplet extends JApplet {
@Override
public void init() {
    try {
      SwingUtilities.invokeAndWait(new Runnable() {
        public void run() {
          getContentPane().add(new BouncingCircles().getPanel());
    } catch (InterruptedException e) {
      e.printStackTrace();
    } catch (InvocationTargetException e) {
      e.printStackTrace();
}

Problems in authentication while accessing WSDL from Sharepoint

I am trying to access objects from a SharePoint on my company site, which requires Authentication and Authorization in order to access the same. I have written a client and am trying to access the WSDL using Axis 1.0.
I am getting an authentication error whiletyring to access the same . The details are listed below. Is there any workaround you may be knowing to get over this firewall problem, that they may be facing ?
Exception in thread "main" AxisFault
faultCode: {http://xml.apache.org/axis/}HTTP
faultString: (401)Unauthorized
faultActor: null
faultDetail:
null: return code: 401
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<HTML><HEAD><TITLE>You are not authorized to view this page</TITLE>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=Windows-1252">
<STYLE type="text/css">
BODY { font: 8pt/12pt verdana }
H1 { font: 13pt/15pt verdana }
H2 { font: 8pt/12pt verdana }
A:link { color: red }
A:visited { color: maroon }
</STYLE>
</HEAD><BODY><TABLE width=500 border=0 cellspacing=10><TR><TD>
<h1>You are not authorized to view this page</h1>
You do not have permission to view this directory or page using the credentials that you supplied because your Web browser is sending a WWW-Authenticate header field that the Web server is not configured to accept.
<hr>
<p>Please try the following:</p>
<ul>
<li>Contact the Web site administrator if you believe you should be able to view this directory or page.</li>
<li>Click the <a href="javascript:location.reload()">Refresh</a> button to try again with different credentials.</li>
</ul>
<h2>HTTP Error 401.2 - Unauthorized: Access is denied due to server configuration.<br>Internet Information Services (IIS)</h2>
<hr>
<p>Technical Information (for support personnel)</p>
<ul>
<li>Go to <a href="http://go.microsoft.com/fwlink/?linkid=8180">Microsoft Product Support Services</a> and perform a title search for the words <b>HTTP</b> and <b>401</b>.</li>
<li>Open <b>IIS Help</b>, which is accessible in IIS Manager (inetmgr),
and search for topics titled <b>About Security</b>, <b>Authentication</b>, and <b>About Custom Error Messages</b>.</li>
</ul>
</TD></TR></TABLE></BODY></HTML>

As a workaround I can start the application in debug mode, log into the Weblogic console and stop then restart the deployment and this issue goes away, sort of a pain but it does work.

TNS-12545: Connect failed because target host or object does not exist

Hi all, I have a bit of a problem, I have gone thru the posts and tried out suggestions but it didn't work. When i type in
LSNRCTL> services
I get this error:
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
32-bit Windows Error: 2: No such file or directory
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=mattlek2)(PORT=1521)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
32-bit Windows Error: 61: Unknown error
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.1.162.8)(PORT=1521)))
TNS-01189: The listener could not authenticate the user
When I type in : LSNRCTL> start
I get this:
Starting tnslsnr: please wait...
TNSLSNR for 32-bit Windows: Version 10.1.0.2.0 - Production
System parameter file is C:\oracle\product\10.1.0\Db_2\network\admin\listener.ora
Log messages written to C:\oracle\product\10.1.0\Db_2\network\log\listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROCipc)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=mattlek2.ifactory.co.za)(PORT=1521)))
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.1.162.8)(PORT=1521)))
TNS-12545: Connect failed because target host or object does not exist
TNS-12560: TNS:protocol adapter error
TNS-00515: Connect failed because target host or object does not exist
32-bit Windows Error: 49: Unknown error
This is my tnsnames.ora file:
# tnsnames.ora Network Configuration File: C:\oracle\product\10.1.0\Db_2\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
GPGWL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.162.8)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = GPGWL)
ORCL_LIVE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 196.36.116.218)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCL)
APPS =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 196.36.116.219)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = VIS)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
EXEL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.162.8)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = idev)
EXEL_IDEV =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.162.8)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = idev)
This is my listener.ora file:
# listener.ora Network Configuration File: C:\oracle\product\10.1.0\Db_2\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = GPGWL)
(ORACLE_HOME = C:\oracle\product\10.1.0\Db_2)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mattlek2)(PORT = 1521))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.162.8)(PORT = 1521))
Any help would be greatly appreciated.
Thank you

just check the string key it should be
key=extproc_for_xe
Try

Data Access Objects (Wizard)

Does SJSE 8 happen to have a wizard that allows you to use the database explorer and create Data Access Objects from tables? If not does anybody know of a good tool to do so. I will be working with IBM iSeries (DB2).

I worked on a JDO runtime a long time ago during JDO's infancy, so I'm personally biased towards it . I like it because it allows you to treat your data objects as normal java objects instead of heavy-weight objects such as CMP beans. As I remember, the JDO runtime I worked on used byte code enhancer to inject code into your byte code to keep track of changes made by plain assignment statements. (Not sure if it works that way for other implementations.)
You might want to check out the following link on SDN:
http://java.sun.com/products/jdo/
Also, there is FAQ on JDO vs. J2EE Persistence you should read before you make a decision:
http://java.sun.com/j2ee/persistence/faq.html
Good luck.

Managed Beans and Data Access Object

I have a question / need help understanding how to configure backing bean and model objects so that memory and object creation/deletion is done as efficiently as possible.
1. I have a .jsf page with a form and a commandbutton that submits the form inputs to a backing bean (enrollispbean is backing bean)
<h:commandButton value="Enter" action="#{enrollispbean.insert}"/>
2. The backing bean is used for form handling - the insert() method is used to read the data fields from the form and create a SQL string that will be submitted to a model object, DbInsert, that is used as a generic data access object that connects to the database and insert the SQL string:
public class EnrollIspBean {
private String beanvar1="";
private String beanvar2= "";
// DbInsert is data access object
private DbInsert dbinsert = new DbInsert();
public String insert (){
String sqlstmt;
sqlstmt = "INSERT INTO ispmain VALUES(beanvar1, beanvar2,..)"
dbinsert.insert(sqlstmt);
return "success"; }
3. DbInsert is the data access object that contains a method, insert(), that accepts a sql string to insert into the database. This method contains the code to obtain a connection from the database connection pool and then execute the sql statement (note: error checking code not shown):
public class DbInsert {
public void insert(String sqlstmt) throws SQLException {
Connection conn = null;
GetDBConnection getdbconnection = new GetDBConnection();
PreparedStatement stmt = null;
conn = getdbconnection.getdbconn();
stmt = conn.prepareStatement(sqlstmt);
stmt.executeUpdate();
stmt.close();
conn.close();
return;
Where I need help understanding is how to set up the scope for the managed beans and data access object. Currently, I have the backing bean within the session scope (using the facesconfig.xml file). My main question is how to set up the scope for the Data Access Object - currently I do not have it as a managed bean within facesconfig.xml. Instead I am creating a new instance within the backing bean:
private DbInsert dbinsert = new DbInsert();
Is this the best way to do this? Will the DBInsert object now be tied to the session scope of the backing bean (i.e., when backing bean is deleted, the DbInsert object will be deleted from session scope as well.)
Ideally I would like the data access object to be available as a shared object throughout the life of the application. When I was programming using a servlet approach, I would have created a servlet to load on startup. Now that I'm using java server faces, I'm confused about the scope / how to efficiently set up a data access object that I want to be available to all backing beans in the application.
tnanks for any help understanding this.
Tom

I was thinking about setting the data access object as application scope so that it can be used by an backing bean to execute sql statements.
If I do set it as application scope, however, if I do this, do I still need to declare a new instance of the object from within each bean that uses the object?
For example do I need to declare a new instance of the data access object from within the bean? or, should I assume that there is always an instance of the bean available in the application scope, and if so, how do I reference it from within the bean?
Bean Code:
public class EnrollIspBean {
// DbInsert is data access object
private DbInsert dbinsert = new DbInsert();
Finally, I understand performance may be an issue if I have one instance of the data access object available in the application scope - is there a way to make multiple instances available in the application scope?
thanks

Unable to access objects in my own schema -- imported from SQL Server

Hi All,
I have imported some tables from MS SQL SERVER 2005 to Oracle 9i (9.2.0.1.0) on Windows machine.
When I fire the query like "SELECT * FROM TAB", I can see the list of all those tables that I have imported, but the problem is that if I try to fetch the data from a specific table, the error is shown as "TABLE OR VIEW DOES NOT EXISTS".
Can you please suggest me some work around to get the data from the tables?
Thanks in advance
Himanshu

Replied in your Re: Unable to access objects in my own schema -- imported from SQL Server.
Yoann.

[Solved] The requested object does not exist. (Exception from HRESULT: 0x80010114)

I have a 8 node cluster with Hyper-V, which will be 10 nodes when it's finally done.
Recently I've been try to add nodes and though that went fine, after about a week I could not open the Failover Cluster Manager anymore.
After some checking I found out that the latest added node was giving problems.
VM's on the node still run and function properly, but most Powershell commands result in a "The requested object does not exist. (Exception from HRESULT: 0x80010114)".
I can suspend the node with Suspend-ClusterNode, but draining roles was unsuccesful in one case.
In the other there were no VM's on the node so suspending went fine.
What I did find out was that when I tried to ping the node from another, proper functioning node, it took a while before the pinging started. It felt like the interface had to come back online on the problem node.
After that, I could add the cluster to the Failover Cluster Manager. However, Powershell commands still give a 0x80010114 error or a CIM error for when I use Get-NetAdapter.
A reboot resolves the problem, but only for about a week.
I know there is a topic with the same title already, but the wbemtest en rollup update "answer" is totally unclear to me why I should change something with wbemtest, or why to install updates that to me have nothing to do with this problem.
Before I did the ping test from a functioning node I pinged my DC and another node from the problem node just fine.
No waiting at all.
The cluster has three networks. Management (host only), Live Migration and iSCSI (also a VMSwitch for certain VM's).
I have no idea where to look. Evenviewer doesn't give me anything I can work with that I can find...

Hi,
Are you using the HP servers? It seems is the HP Nic team service was causing the issue, please try to
disabled the HP NIC team service from services and restarted the WMI service.
The related third party information:
Advisory: (Revision) HP ProLiant Servers - Systems Running Microsoft Windows Server 2012 or 2012 R2 May Experience a Memory Leak Up To 5 Mb/ Hour for Some NIC Teaming Configurations
http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay/?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_ba847bafb2a2d782fcbb0710b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c04209163-2%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.tpst=ba847bafb2a2d782fcbb0710b053ce01&ac.admitted=1401176219136.876444892.199480143
Hope this helps.
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are trying to better understand customer views on social support experience, so your participation in this
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Thanks for helping make community forums a great place.

SOLVED--"object no longer exists" for Windows shares

If you can see a Windows share in the Finder but can't connect to it, or get the error that says the object doesn't exist, I think I've found the answer. I was trying to mount a connected Western Digital USB drive which was shared from a Windows XP machine. It was seen correctly in Finder, but I could never actually connect to it. It wasn't until recently that I discovered that I was also having a problem connecting to it from another Windows machine, and that led me to find this solution.
http://winhlp.com/node/40
If you still have the error after rebooting your Windows machine where the share resides, increase the value of 15, then reboot. I had to go to 25 to make everything work.

Kelly,
Do you do any DDL on EMP table of HR schema?
I guess, if you do any DDL on EMP, you may loose all the grants, you may need to regarnt permission again.
Jaffar

Accessing objects from an existing JVM on Windows

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