Need to conver object into -ve value

Hi,
i need to send my value into web service request as negative value
AuthorizationAmount=rowData.getAttribute(19);
Object amt = resolveExpression("#{bindings.amount.inputValue}");
setCtrlFacesAttrBinding(amt, AuthorizationAmount);// here i need to send -AuthorizationAmount
how should i do this.

Can any one suggest me how should i change the sign.

Similar Messages

Parsing input stream into named value pairs

Hi everyone. I figured I would post this scenario, and hope to get some 'expert' opinions on what the best way to handle this would be.
I have an input stream being returned to me and I need to separate them into name/value pairs. I receive this as two lines of strings. The first line is the variable names, and the second line is the values. This is the format:
"Variable1","Variable2","Variable3","Variable4"
"Value1","Value2","Value3","Value4"
I need to separate this out into:
Variable1 = "Value1"
Variable2 = "Value2"
What I was thinking of doing is to create a hashtable, read the first line in and assign those as the keys, then read the second line in and assign those as the values. I'm not quite sure if this is even possible as of yet, but thats my original game plan. My primary goals are:
1. Seperate each variable name and match it with its appropriate value
2. Be able to retrieve each value by calling the appropriate variable name.
Any advice/opinion on this is greatly appreciated!!! Thanks!

You could choose to feed the String through an InputStream and use a StreamTokenizer, which is substantially more powerful than StringTokenizer. I would personally, however, choose to parse it myself, as antequated as that might seem. ;)
Presume that s1 is equal to
"Var1", "Var2", "MoreVars", "EvenMoreVars" , "LastVar"
And that s2 is equal to
"Hello","9900", ":)", "He said \"hi\".", "Hi, there."
These would make good sample data, but aren't necessarily the case.
String s1 = ...;
String s2 = ...;
HashMap map = null;
String[] keys = parseQuotedByCommas(s1);
String[] values = parseQuotedByCommas(s2);
if (keys.length==values.length)
    map = new HashMap();
    for (int i=0;i<keys.length;i++)
        map.put(keys, values[i]);
} else
// Error!
// throws IllegalArgumentException for improperly formatted strings
public static String[] parseQuotedByCommas(String s)
     ArrayList acc = new ArrayList();
     char[] ch = s.toCharArray();
     int i = 0;
     try
          while (i < ch.length)
               while (ch[i] == ' ') i++;
               if (i < ch.length)
                    if (ch[i] != '"')
                         throw new IllegalArgumentException(
                         "Expected '\"', receieved '" + ch[i] + "'");
                    i++;
                    StringBuffer sb = new StringBuffer();
                    boolean stop = false;
                    while (!stop)
                         switch (ch[i])
                              case '"':
                                   if (ch[i - 1] == '\\')
                                        sb.append('"');
                                   else
                                        stop = true;
                                   break;
                              case '\\':
                                   int j = i;
                                   boolean write = true;
                                   while ((j >= 0) && (ch[j] == '\\'))
                                        write = !write;
                                        j--;
                                   if (write) sb.append('\\');
                                   break;
                              default:
                                   sb.append(ch[i]);
                         i++;
                    acc.add(sb.toString());
               if (i < ch.length)
                    while (ch[i] == ' ') i++;
                    if (i < ch.length)
                         if ((ch[i] != ',') && (ch[i] != '"'))
                              throw new IllegalArgumentException(
                              "Expected ',' or '\"', received '" + ch[i] + "'");
                         i++;
     } catch (IndexOutOfBoundsException oob)
          throw new IllegalArgumentException("Unexpected end of string.");
     return (String[]) (acc.toArray(new String[0]));
That should work for anything formatted as
<String> ::= [<WhiteSpace>] <Stmt> [ [<WhiteSpace>] , [<WhiteSpace>] <Stmt> ] *
<Stmt> ::= " <Characters> "
<Characters> ::= \" | \\ | <AnyCharacterExceptQuoteOrBackslash>
<WhiteSpace> ::= <Space>*
Any questions?
Oh, BTW, that was all blue 'cause the code tag doesn't take well to '"'.

I need to add the values stored in the session object into the html textbox

Dear Sir,
i have been trying to create an edit employee details page
What i have done till now is as follow:
1. Got employee id from HTML page.
2. Compared it with the id stored in the database.
3. If the id is correct then pulled the record of the corresponding employee and stored it in the session object.
4. Dispatched the session values to another servlet EditEmpDetails2.java
what i need to do now
5. Now i need to set the session values in the text field of the html form
6. I also need to be able to edit those vales and store the edited values in the database.
Please help me as i have tried doing it for 1 week without any clues
i have tried to create a html page which is something like this:
<html>
<head>
<title>Edit Employee Details Page</title>
<body BGCOLOR="red" text="black">
<h1 ><font color="black">Edit Employee Details Page</font></h1>
<form action = "EditEmpDetails" method="Get">
<table width="50% align="center"
<tr><td>Employee ID: </td>
<td><INPUT TYPE="TEXT" name="employeeid"<br></td></tr>
<tr><td><center><input type="submit" value="submit"></center></td></tr>
<tr><td><center><input type="reset" value="reset" ></center></td></tr>
</table>
</form>
</body>
</html>
design of my servlet EditEmpDetails.java
public void EditEmpDetails1 extends HttpServlet
public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException
PrintWriter out = response.getWriter();
response.setContentType("text/html");
HttpSession session = request.getSession();
String employeeid;
String X = request.getParameter("employeeid");
System.out.println("Employee iD:" + X);
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:murphy");
String query = "Select * from users where employeeid=?";
PreparedStatement stat = con.prepareStatement(query);
System.out.println(stat);
stat.setString(1,X);
ResultSet rs = stat.executeQuery();
while(rs.next())
String Z = rs.getString(password);
if(Z.equals(X))
String A = rs.getString(1);
session.setAttribute("employeeid", A);
String B = rs.getString(2);
session.setAttribute("firstname", B);
String C = rs.getString(3);
session.setAttribute("lastname", C);
String D = rs.getString(4);
session.setAttribute("gender", D);
String E = rs.getString(5);
session.setAttribute("dateofbirth", E);
String F = rs.getString(6);
session.setAttribute("address", F);
String G = rs.getString(7);
session.setAttribute("postalcode", G);
String H = rs.getString(8);
session.setAttribute("phone", H);
String I = rs.getString(9);
session.setAttribute("mobile", I);
String J = rs.getString(10);
String url = "/EditEmpDetao;s.java";
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url)
dispatcher.forward(request,response);
catch (Exception e)
system.out.println(e)
I do not know how to put the values stored in the session object into the html text box

3. If the id is correct then pulled the record of the corresponding employee and stored it in the session object.do you really need to store this in session object?
5. Now i need to set the session values in the text field of the html form which form? in a new html/jsp page? i suggest go for a JSP
In your JSP page use JSP expression tags to put the session attributes.
it's something like : <input type='text' name='employeeid' value='<%= session.getAttribute("employeeid") %>' >and you need to generateanother servlet for saving the details/modifications to the database.
I think i m clear enough.
if you need more clarifications. just try it and then post your problem.
Diablo

How can I insert values from table object into a regular table

I have a table named "ITEM", an object "T_ITEM_OBJ", a table object "ITEM_TBL" and a stored procedure as below.
CREATE TABLE ITEM
ITEMID VARCHAR2(10) NOT NULL,
PRODUCTID VARCHAR2(10) NOT NULL,
LISTPRICE NUMBER(10,2),
UNITCOST NUMBER(10,2),
SUPPLIER INTEGER,
STATUS VARCHAR2(2),
ATTR1 VARCHAR2(80),
ATTR2 VARCHAR2(80),
ATTR3 VARCHAR2(80),
ATTR4 VARCHAR2(80),
ATTR5 VARCHAR2(80)
TYPE T_ITEM_OBJ AS OBJECT
ITEMID VARCHAR2(10),
PRODUCTID VARCHAR2(10),
LISTPRICE NUMBER(10,2),
UNITCOST NUMBER(10,2),
SUPPLIER INTEGER,
STATUS VARCHAR2(2),
ATTR1 VARCHAR2(80),
ATTR2 VARCHAR2(80),
ATTR3 VARCHAR2(80),
ATTR4 VARCHAR2(80),
ATTR5 VARCHAR2(80)
TYPE ITEM_TBL AS TABLE OF T_ITEM_OBJ;
PROCEDURE InsertItemByObj(p_item_tbl IN ITEM_TBL, p_Count OUT PLS_INTEGER);
When I pass values from my java code through JDBC to this store procedure, how can I insert values from the "p_item_tbl" table object into ITEM table?
In the stored procedure, I wrote the code as below but it doesn't work at all even I can see values if I use something like p_item_tbl(1).itemid. How can I fix the problem?
INSERT INTO ITEM
ITEMID,
PRODUCTID,
LISTPRICE,
UNITCOST,
STATUS,
SUPPLIER,
ATTR1
) SELECT ITEMID, PRODUCTID, LISTPRICE,
UNITCOST, STATUS, SUPPLIER, ATTR1
FROM TABLE( CAST(p_item_tbl AS ITEM_TBL) ) it
WHERE it.ITEMID != NULL;
COMMIT;
Also, how can I count the number of objects in the table object p_item_tbl? and how can I use whole-loop or for-loop to retrieve values from the table object?
Thanks.

Sigh. I answered this in your other How can I convert table object into table record format?.
Please do not open multiple threads. It just confuses people and makes the trreads hard to follow. Also, please remember we are not Oracle employees, we are all volunteers here. We answer questions if we can, when we can. There is no SLA so please be patient.
Thank you for your future co-operation.
Cheers, APC

Requirements to put my own value object into the context

Hello,
are there any requirements to put my own value object into the context?
I got following exception
An error has occurred:
"Failed to process the request."
Please contact your system administrator.
Hide details
Web Dynpro product information:
Product: null, Vendor: SAP AG, Version: null, Build ID: 6.3006.00.0000.20040617153350.0000, Build Date: Mon Aug 16 09:18:37 CEST 2004
Error stacktrace:
java.lang.ClassCastException
     at com.sap.tc.webdynpro.progmodel.context.Paths.getAttributeInfoFor(Paths.java:186)
     at com.sap.tc.webdynpro.clientimpl.html.uielib.standard.uradapter.DropDownByKeyAdapter.setViewAndNodeElement(DropDownByKeyAdapter.java:230)
     at com.sap.tc.webdynpro.clientimpl.html.uielements.adaptmgr.URAdapterManager.getAdapterFor(URAdapterManager.java:230)
     at com.sap.tc.webdynpro.clientimpl.html.uielements.adaptmgr.URAdapterManager.getAdapterFor(URAdapterManager.java:63)
     at com.sap.tc.webdynpro.clientimpl.html.uielib.standard.uradapter.TableAdapter$ContentCell.getContent(TableAdapter.java:1295)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.SapTableCellRenderer.render(SapTableCellRenderer.java:57)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.SapTableRowRenderer.renderSapTableRowFragment(SapTableRowRenderer.java:67)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.SapTableRowRenderer.render(SapTableRowRenderer.java:33)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.SapTableDefaultBodyRenderer.renderSapTableDefaultBodyFragment(SapTableDefaultBodyRenderer.java:96)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.SapTableDefaultBodyRenderer.render(SapTableDefaultBodyRenderer.java:29)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.SapTableRenderer.renderSapTableFragment(SapTableRenderer.java:394)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.SapTableRenderer.render(SapTableRenderer.java:49)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutCellFragment(GridLayoutRenderer.java:609)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutRowFragment(GridLayoutRenderer.java:312)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutFragment(GridLayoutRenderer.java:250)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.render(GridLayoutRenderer.java:57)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.renderScrollContainerFragment(ScrollContainerRenderer.java:235)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.render(ScrollContainerRenderer.java:41)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ViewContainerRenderer.renderViewContainerFragment(ViewContainerRenderer.java:93)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ViewContainerRenderer.render(ViewContainerRenderer.java:33)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutCellFragment(GridLayoutRenderer.java:609)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutRowFragment(GridLayoutRenderer.java:312)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutFragment(GridLayoutRenderer.java:250)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.render(GridLayoutRenderer.java:57)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.renderScrollContainerFragment(ScrollContainerRenderer.java:235)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.render(ScrollContainerRenderer.java:41)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ViewContainerRenderer.renderViewContainerFragment(ViewContainerRenderer.java:93)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ViewContainerRenderer.render(ViewContainerRenderer.java:33)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.UiWindowRenderer.render(UiWindowRenderer.java:32)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:268)
     at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:94)
     at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendHtml(HtmlClient.java:454)
     at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java:286)
     at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java:178)
     at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:632)
     at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:57)
     at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:249)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:139)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:101)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:45)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:383)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:263)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:333)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:311)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:811)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:235)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:147)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37)
     at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:94)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:144)

Hi Jurgen,
Can you please explain what you are trying to do in detail. Do you want to create a Node dynamically in the context or, you want to populate a Node in a Context???
The stack trace, does not reveal what you want to do with the value object!
Thanks and Regards,
Vishnu Prasad Hegde

CMOD Project need to move from local Object into Transport request

Hi Friends,
I created a Project(CMOD) under Local Object I need to move the Project from Local object into Transport request.
I can't able to find any option.
Please guide me ASAP.
Advanced Thanks.

On the first screen of your project, choose following menu path:
"goto => object directory entry"
press on the change icon
you can now assign a different package.

Need help on inserting multiple selection values into database

Hello every body,
we are developing one small web application in that we have requirement like department is an combobox, services in multiple selection list box, suppose when i select IT as department & some services in multiple listbox on clicking map button selected services should be map with that department .Could u plz help me how i have to do..?
Thanks & Regards,
Anil.

anilmekala.reddy wrote:
Hello every body,
we are developing one small web application in that we have requirement like department is an combobox, services in multiple selection list box, suppose when i select IT as department & some services in multiple listbox on clicking map button selected services should be map with that department .Could u plz help me how i have to do..?
Thanks & Regards,
Anil.if you give more details .... do you know how to use jdbc ??? prepared statement ???
any way if I have understood your question
I will suppose that you have 3 tables Department ,service and Has_service
and I supose that you have already the entry in table department and service
Here is what I would do ...
while(I have something to insert )
insert into Has_service values (department,service )
}

Conver String object into char

Hi friends,
I don't know how convert the String object into char(Primitive data type), using wrapper class?
Kindly let me know.

Have a look in the String API documentation for a method that returns an array of char.
(It's not really what most people would describe as a wrapper class: that's more like converting a single char into an instance of Character.)

How to update a large (over 4 million item) List(Of Byte) quickly by altering indexes contained in a Dictionary(Of Integer, Byte) where the Dictionaries keys are the indexes in the List(Of Byte) that need to be changed to the values for those indexes?

   I'm having some difficulty with transferring images from a UDP Client to a UDP Server. The issue is receiving the bytes necessary to update an original image sent from the Client to the Server and updating the Servers List(Of Byte) with the
new bytes replacing bytes in that list. This is a simplex connection where the Sever receives and the Client sends to utilize the least amount of bandwidth for a "Remote Desktop" style application where the Server side needs image updates of whatever
occurs on the Client desktop.
   So far I can tranfer images with no issue. The images can be be any image type (.Bmp, .Gif, .JPeg, .Png, etc). I was working with sending .JPeg's as they appear to be the smallest size image when a Bitmap is saved to a memory stream as type
.JPeg. And then I am using GZip to compress that byte array again so it is much smaller. However on a loopback on my NIC the speed for sending a full size screen capture is not very fast as the Server updates fairly slowly unless the Clients screen capture
Bitmap is reduced in size to about 1/3'd of the original size. Then about 12000 bytes or less are sent for each update.
   Due to .JPeg compression I suppose there is no way to get the difference in bytes between two .JPegs and only send those when something occurs on the desktop that alters the desktop screen capture image. Therefore I went to using .Bmp's as each
.Bmp contains the same number of bytes in its array regardless of the image alterations on the desktop. So I suppose the difference in bytes from a second screen capture and an inital screen capture are what is different in the second image from the initial
image.
   What I have done so far is save an initial Bitmap of a screen capture using a memory stream and saving as type .Bmp which takes less than 93 milliseconds for 4196406 bytes. Compressing that takes less than 118 milliseconds to 197325 bytes for
the current windows on the desktop. When that is done PictureBox1 is updated from nothing to the captured image as the PictureBox's background image with image layout zoom and the PictureBox sized at 1/2 my screens width and 1/2 my screens height.
   Then I save a new Bitmap the same way which now contains different image information as the PictureBox is now displaying an image so its back color is no longer displayed (solid color Aqua) and the cursor has moved to a different location. The
second Bitmap is also 4196406 in bytes and compressed it was 315473 bytes in size.
   I also just found code from this link Converting a Bitmap to a Byte Array (and Byte Array to Bitmap) which gets a byte array
directly from a Bitmap and the size of that is 3148800 for whatever is full screen captured on my laptop. So I should be able to work with smaller byte arrays at some point.
   The issue I'm having is that once the Client sends an image of the desktop to the Server I only want to update the server with any differences occuring on the Clients desktop. So what I have done is compare the first screen captures bytes (stored
in a List(Of Byte)) to the second screen captures bytes (stored in a List(Of Byte)) by using a For/Next for 0 to 4196405 where if a byte in the first screen captures List is not equal to a byte in the second screen captures List I add the index and byte of
the second screen captures list to a Dictionary(Of Integer, Byte). The Dictionary then only contains the indexes and bytes that are different between the first screen capture and second screen capture. This takes about 125 milliseconds which I think is pretty
fast for 4196406 byte comparison using a For/Next and adding all the different bytes and indexes for each byte to a Dictionary.
    The difference in Bytes between the inital screen capture and the second screen capture is 242587 as an example which changes of course. For that amount of bytes the Dictionary contains 242587 integers as indexes and 242587 bytes as different
bytes totaling 485174 bytes for both arrays (keys, values). Compressed the indexes go from 242587 to 43489 bytes and the values go from 242587 to 34982 bytes. Which means I will have to send 78, 481 bytes from the Client to the Server to update the display
on the server. Quite smaller than the original 4196406 bytes of the second Bitmap saved to type .Bmp or the compressed size of that array which was 315473 bytes. Plus a few bytes I add as overhead so the server knows when an image array ends and how many packets
were sent for the array so it can discard complete arrays if necessary since UDP is lossfull although probably not so much in current networks like it may originally have been when the internet started.
    In reality the data from the Client to the Server will mostly be the cursor as it moves and updating the Server image with only a few hundred bytes I would imagine at a time. Or when the cursor selects a Button for example and the Buttons
color changes causing those differences in the original screen capture.
   But the problem is if I send the Dictionaries Indexes and Bytes to the Server then I need to update the original Bitmap List(Of Byte) on the server by removing the Bytes in the received informations Index locations array from the Servers Bitmap
List(Of Byte) and replacing those Bytes with the Bytes in the received informations Byte array. This takes so long using a For/Next for however many indexes are in the received informations Index array to update the Bitmap List(Of Byte) on the server using
"Bmp1Bytes.RemoveAt(Index As Integer)" followed by "Bmp1Bytes.Insert(Index As Integer, Item As Byte)" in the For/Next.
    I've tried various For/Next statements including using a new List(Of Byte) with If statements so If the the integer for the For/Next ='s the Key in a Dictionary(Of Integer, Byte) using a Counter to provide the Dictionaries Key value then
the Dictionaries byte value will be added to the List(Of Byte) and the counter will increas by one Else the List(Of Byte) adds the original "Bmp1Bytes" byte at that index to the new List(Of Byte). This takes forever also.
   I also tried the same For/Next adding to a new Dictionary(Of Integer, Byte) but that takes forever too.
   I think I could use RemoveRange and AddRange to speed things up. But I don't know how to retrieve a contiguous range of indexes in the received indexes that need to be updated in the servers "Bmp1Bytes" List(Of Byte) from the received
array of indexes and bytes which are in a Dictionary(Of Integer, Byte). But I believe this would even be slower than some realistic method for replacing all Bytes in a List(Of Byte) when I have the indexes that need to be replaced and the bytes to replace
them with.
   Even if I just used AddRange on a new List(Of Byte) to add ranges of bytes from the original "Bmp1Bytes" and the changes from the Dictionary(Of Integer, Byte) I think this would be rather slow. Although I don't know how to do that
by getting contiguous ranges of indexes from the Dictionaries keys.
   So I was wondering if there is some method perhaps using Linq or IEnumerable which I've been unable to figure anything out which could do this.
   I do have some copy and pasted code which I don't understand how it works that I am using which I would guess could be altered for doing something like this but I can't find information that provides how the code works. Or even if I did
maybe I can't understand it. Like the code below which is extremely fast.
   Dim strArray() As String = Array.ConvertAll(Of Integer, String)(BmpComparisonDict.Keys.ToArray, Function(x) x.ToString())
La vida loca

Monkeyboy,
That was quite a bit to read, but still a bit unclear. Could you put a specific list of goals/questions, asked in the smallest possible form?
It seems like either you're making a program that monitors activity on your computer, or you're writing some kind of remote pc app.
When you do get your bytes from using lockbits, keep in mind all the files header info would be lost. I think retaining the header info is worth the extra bytes.
The other, thing: I'm not sure if you're taking 32bpp screen shots, but also keep in mind that the "whole desktop" is the final destination for blended graphics, if that makes sense. What I mean is that there is no need to capture an "alpha"
channel for a desktop screenshot, as alpha would always be 255, this could save you 1 byte per pixel captured... Theres nothing "behind" the desktop, therefore no alpha, and every window shown above the desktop is already blended. I suggest using
24Bpp for a full screen capture.
Your X,Y information for the mouse could be stored as UINT16, this would save you a measly 2 bytes per location update/save.
When you update your byte arrays, maybe you can turn the array into a stream and write to whatever index, however many bytes, that should prevent a "Shift" of bytes, and instead overwrite any bytes that "get in the way".
ex
Dim example As String = "This is an example."
Dim insertString As String = "was"
Dim insertBytes As Byte() = System.Text.Encoding.ASCII.GetBytes(insertString)
Dim bytes As Byte() = System.Text.Encoding.ASCII.GetBytes(example)
Dim modifiedBytes As Byte() = {}
Using ms As New System.IO.MemoryStream(bytes)
ms.Position = 5
ms.Write(insertBytes, 0, 3)
modifiedBytes = ms.ToArray
End Using
Dim newString As String = System.Text.Encoding.ASCII.GetString(modifiedBytes)
'Notice how below there isn't the word "is" anymore, and that there isn't a
'space.
'This demonstrates that you overwrite existing data, versus shifting everything to
'the right.
'Returns: This wasan example.
MsgBox(newString)
“If you want something you've never had, you need to do something you've never done.”
Don't forget to mark
helpful posts and answers
! Answer an interesting question? Write a
new article
about it! My Articles
*This post does not reflect the opinion of Microsoft, or its employees.
Well it's too much to read. I was really tired when I wrote it. Even the below is too much to read but perhaps gets the point across of what I would like to do which I think
Joel Engineer may have answered but I'm not sure. As I'm still too tired to understand that yet and research what he said in order to figure it out yet.
But maybe the code below can provide the concept of the operation with the comments in it. But seeing as how I'm still tired it may be confused.
Option Strict On
Imports System.Windows.Forms
Imports System.IO
Imports System.IO.Compression
Imports System.Drawing.Imaging
Imports System.Runtime.InteropServices
Public Class Form1
Dim Bmp1Bytes As New List(Of Byte)
Dim Bmp1BytesCompressed As New List(Of Byte)
Dim Bmp2Bytes As New List(Of Byte)
Dim BmpComparisonDict As New Dictionary(Of Integer, Byte)
Dim BmpDifferenceIndexesCompressed As New List(Of Byte)
Dim BmpDifferenceBytesCompressed As New List(Of Byte)
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
SomeSub()
End Sub
Private Sub SomeSub()
' Pretend this code is in UDP Client app. A screen capture is performed of the desktop. Takes about 90 milliseconds.
Bmp1Bytes.Clear()
Using BMP1 As New Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height)
Using g1 As Graphics = Graphics.FromImage(BMP1)
g1.CopyFromScreen(0, 0, 0, 0, BMP1.Size)
Cursor.Draw(g1, New Rectangle(Cursor.Position.X, Cursor.Position.Y, Cursor.Size.Width, Cursor.Size.Height))
Using MS As New MemoryStream
BMP1.Save(MS, System.Drawing.Imaging.ImageFormat.Bmp)
Bmp1Bytes.AddRange(MS.ToArray)
End Using
End Using
End Using
Bmp1BytesCompressed.AddRange(Compress(Bmp1Bytes.ToArray))
' UDP Client app sends Bmp1BytesCompressed.ToArray to UDP Server which is the entire image of the desktop that the UDP
' Client is on. This image takes awhile to send since compressed it is about 177000 bytes from over 4000000 bytes.
' I will be using different code just to get the bytes from the actual Bitmap in the future. That is not important for now.
' Pretend the UDP Server has received the bytes, decompressed the array received into a List(Of Byte) and is displaying
' the image of the UDP Clients desktop in a PictureBox.
' Now the image on the UDP Clients desktop changes due to the mouse cursor moving as an example. Therefore a new Bitmap
' is created from a screen capture. This takes about 90 milliseconds.
Bmp2Bytes.Clear()
Using BMP2 As New Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height)
Using g1 As Graphics = Graphics.FromImage(BMP2)
g1.CopyFromScreen(0, 0, 0, 0, BMP2.Size)
Cursor.Draw(g1, New Rectangle(Cursor.Position.X, Cursor.Position.Y, Cursor.Size.Width, Cursor.Size.Height))
Using MS As New MemoryStream
BMP2.Save(MS, System.Drawing.Imaging.ImageFormat.Bmp)
Bmp2Bytes.AddRange(MS.ToArray)
End Using
End Using
End Using
' Now I have the original images bytes in Bmp1Bytes and the new images bytes in Bmp2Bytes on the UDP Client. But I don't
' want to send all of the bytes in Bmp2Bytes to the UDP Server. Just the indexes of and the bytes that are different in
' Bmp2Bytes from Bmp1Bytes.
' This takes less than 100 milliseconds for what I've tested so far where over 500000 bytes in Bmp2Bytes are different
' than the bytes in Bmp1Bytes. Usually that amount would be much less. But during testing I was displaying the image
' from Bmp1 bytes in a PictureBox so a large amount of data would change between the first screen shot, the PictureBox
' then displaying an image on the same PC and then the second screen shot.
BmpComparisonDict.Clear()
For i = 0 To Bmp1Bytes.Count - 1
If Bmp1Bytes(i) <> Bmp2Bytes(i) Then
BmpComparisonDict.Add(i, Bmp2Bytes(i))
End If
Next
' So now I have all the difference bytes and their indexes from Bmp2Bytes in the BmpComparisonDict. So I compress
' the indexes into on List and the Bytes into another List.
BmpDifferenceIndexesCompressed.Clear()
BmpDifferenceBytesCompressed.Clear()
BmpDifferenceIndexesCompressed.AddRange(Compress(BmpComparisonDict.Keys.SelectMany(Function(d) BitConverter.GetBytes(d)).ToArray()))
BmpDifferenceBytesCompressed.AddRange(Compress(BmpComparisonDict.Values.ToArray))
' Now pretend the UDP Client has sent both those arrays to the UDP Server which has added both decompressed arrays
' to a Dictionary(Of Integer, Byte). And the server has the original image decompressed bytes received in a List
' called Bmp1Bytes also.
' This is where I am stuck. The UDP Server has the Dictionary. That part was fast. However there is no
' fast method I have found for creating a new List(Of Byte) where bytes in the originally received List(Of Byte) that
' do not have to be altered are placed into a new List(Of Byte) except for the indexes listed in the
' Dictionary(Of Integer, Byte) that need to be placed into the appropriate index locations of the new List(Of Byte).
' The below example for doing so is exceptionally slow. Pretend UpdateDictionary has all of the decompressed indexes
' and bytes received by the UDP Server for the update contained within it.
Dim UpdateDictionary As New Dictionary(Of Integer, Byte)
Dim UpdatedBytes As New List(Of Byte)
Dim Counter As Integer = 0
For i = 0 To Bmp1Bytes.Count - 1
If i = UpdateDictionary.Keys(Counter) Then ' Provides the index contained in the Keys for the Dictionary
UpdatedBytes.Add(UpdateDictionary.Values(Counter))
Counter += 1
If Counter > UpdateDictionary.Count - 1 Then Counter = 0
Else
UpdatedBytes.Add(Bmp1Bytes(i))
End If
Next
' So what I'm trying to do is find an extremely fast method for performing something similar to what the
' above operation performs.
End Sub
Private Function Compress(BytesToCompress() As Byte) As List(Of Byte)
Dim BytesCompressed As New List(Of Byte)
Using compressedStream = New MemoryStream()
Using zipStream = New GZipStream(compressedStream, CompressionMode.Compress)
zipStream.Write(BytesToCompress, 0, BytesToCompress.Count)
zipStream.Close()
BytesCompressed.AddRange(compressedStream.ToArray)
End Using
End Using
Return BytesCompressed
End Function
Private Function Decompress(BytesToDecompress() As Byte) As List(Of Byte)
Dim BytesDecompressed As New List(Of Byte)
Using DecompressedStream = New MemoryStream()
Using zipStream = New GZipStream(DecompressedStream, CompressionMode.Decompress)
zipStream.Write(BytesToDecompress, 0, BytesToDecompress.Count)
zipStream.Close()
BytesDecompressed.AddRange(DecompressedStream.ToArray)
End Using
End Using
Return BytesDecompressed
End Function
End Class
La vida loca

How can I convert table object into table record format?

I need to write a store procedure to convert table object into table record. The stored procedure will have a table object IN and then pass the data into another stored procedure with a table record IN. Data passed in may contain more than one record in the table object. Is there any example I can take a look? Thanks.

I'm afraid it's a bit labourious but here's an example.
I think it's a good idea to work with SQL objects rather than PL/SQL nested tables.
SQL> CREATE OR REPLACE TYPE emp_t AS OBJECT
2      (eno NUMBER(4)
3      , ename VARCHAR2(10)
4      , job VARCHAR2(9)
5      , mgr NUMBER(4)
6      , hiredate DATE
7      , sal NUMBER(7,2)
8      , comm NUMBER(7,2)
9      , deptno NUMBER(2));
10 /
Type created.
SQL> CREATE OR REPLACE TYPE staff_nt AS TABLE OF emp_t
2 /
Type created.
SQL> Now we've got some Types let's use them. I've only implemented this as one public procedure but you can see the principles in action.
SQL> CREATE OR REPLACE PACKAGE emp_utils AS
2      TYPE EmpCurTyp IS REF CURSOR RETURN emp%ROWTYPE;
3      PROCEDURE pop_emp (p_emps in staff_nt);
4 END emp_utils;
5 /
Package created.
SQL> CREATE OR REPLACE PACKAGE BODY emp_utils AS
2      FUNCTION emp_obj_to_rows (p_emps IN staff_nt) RETURN EmpCurTyp IS
3          rc EmpCurTyp;
4      BEGIN
5          OPEN rc FOR SELECT * FROM TABLE( CAST ( p_emps AS staff_nt ));
6          RETURN rc;
7      END emp_obj_to_rows;
8      PROCEDURE pop_emp (p_emps in staff_nt) is
9          e_rec emp%ROWTYPE;
10          l_emps EmpCurTyp;
11      BEGIN
12          l_emps := emp_obj_to_rows(p_emps);
13          FETCH l_emps INTO e_rec;
14          LOOP
15              EXIT WHEN l_emps%NOTFOUND;
16              INSERT INTO emp VALUES e_rec;
17              FETCH l_emps INTO e_rec;
18          END LOOP;
19          CLOSE l_emps;
20      END pop_emp;
21 END;
22 /
Package body created.
SQL>Looks good. Let's see it in action...
SQL> DECLARE
2      newbies staff_nt := staff_nt();
3 BEGIN
4      newbies.extend(2);
5      newbies(1) := emp_t(7777, 'APC', 'CODER', 7902, sysdate, 1700, null, 40);
6      newbies(2) := emp_t(7778, 'J RANDOM', 'HACKER', 7902, sysdate, 1800, null, 40);
7      emp_utils.pop_emp(newbies);
8 END;
9 /
PL/SQL procedure successfully completed.
SQL> SELECT * FROM emp WHERE deptno = 40
2 /
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM
    DEPTNO
      7777 APC        CODER           7902 17-NOV-05       1700
        40
      7778 J RANDOM   HACKER          7902 17-NOV-05       1800
        40
SQL>     Cheers, APC

I need a suggestion - Object to XML, XML to object

Hi everyone,
I've made a tool that stores objects into an XML document. It's a serialization process, I guess. It works well, but I have a problem, that may be impossible to solve:
When I restore an object from the XML document, I need to instantiate new objects all the time. Consider this:
This class:
public class ScreenConfiguration
    private int width = 1024;
    private int height = 768;
    private int resolution = 96;
    private int colorDepth = 32;
}would become
<object class="ScreenConfiguration" version="1a">
<width>1024</width>
<height>768</height>
<resolution>96</resolution>
<colorDepth>32</colorDepth>
</object>
So far, so good, right? The problem is when I want to restore an object.
If the ScreenConfiguration class would have this constructor:
ScreenConfiguration(int width, int height, int resolution, int colorDepth)I would not be able to instantiate the class without passing the correct parameters. And it's impossible to determine the correct parameters. Is there any way you can instantiate a class without letting it run any initializing code? I'm guessing that this problem is impossible to overcome, but there's no harm in asking... Any suggestions?
Thanks on advance,
Nille

I was a bit unclear while describing the problem. The example provided is very very very simple. The problem isn't these kinds of classes, but more complex classes, such as Hashtables and Vectors that that contains fields that requires parameters while being instantiated. I don't really care about the initialization process - once I have an object I can restore it's fields and it won't know it's been restored from an XML file.
To clearify the problem, consider this class:
public class ATestClass
   Integer myTestField = new Integer(15);
}Serializing this class is no problem: the Integer object simply contains a value-field that can be serialized without any problem. When restoring the object I want to create an integer and set its 'value' field, but since there is no default constructor, this is not prossible. You are not obligated to provide a default constructor in java, but is there anyway to use one even though it's not there? It seems far-fetched, but I'm trying anything right know...

Conversion of object into integer

hi
How to convert Object into integer.
I want to get value of JTable cell.So im doing
for(int i=0;i<4i++)
String value=(String) JTable.getValueAt(i,2);
s.o.p("Table value :"+JTable.getValueAt(i,2));
int changedValue=Integer.parseInt(Value);
s.o.p("Changed value :"+value);
}JTable.getValueAt(0,2) : 0
JTable.getValueAt(1,2) : 0
JTable.getValueAt(2,2) : 2
JTable.getValueAt(3,2) : 4
Theses are the respective values of the respective row positions
Im able to get values of 1st row and 2nd row which are of 0 values
But the value of third row and 4th row im gettin an exception
java.lang.Integer cannot cast to java.lang.String
please help anyone

If the data in the model is of type Integer you can't cast it to String.
You need to cast this to Integer and call intValue method to get as int.
If you want further help post a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://homepage1.nifty.com/algafield/sscce.html] that demonstrates the problem.

Need help formatting text field default value

Hello,
I've received a customer request to put default text into the Value section of a text field. They're requesting that the default text include line breaks, bullets, etc. I added a Text Field object and added the default text to the Object tab > Value tab Default field but can't figure out how to add line breaks, etc.
Thanks in advance,
Saskia

Hi,
this is possible but not doable with the UI of Designer.
The workaround is as follows:
1. Create a text, enter your default text with all the formattings you need (text color, bold text, line breaks etc.)
2. Create a text field and enter any word as default value. Let's say "Default".
3. Select the text and the switch to the XML Source view.
There you will find all the formatted text between the <value> tags such as:
<value>
     <exData contentType="text/html">
          <body xmlns="http://www.w3.org/1999/xhtml" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/"><p style="letter-spacing:0in">This is<span style="xfa-spacerun:yes"> </span></p><p style="color:#ff0000;letter-spacing:0in">default Text</p><p style="letter-spacing:0in"><span style="xfa-spacerun:yes"> </span>• with<span style="xfa-spacerun:yes"> </span><span style="font-weight:bold">RichText</span> formatting.</p></body>
     </exData>
</value>
4. Select the whole code between the <value> tags and copy it to the clipboard (ctrl + c).
5. Go to the Design View, select the text field, go back to the XML Source view.
6. There you'll also find the value <tags> and your default value you entered before.
<value>
     <text>Default</text>
</value>
7. Select this code section and paste the value copied before to the clipboard by pressing ctrl + v.
8. That's it. When you now go back to the Design View your text field shows a formatted RichText as defaul text.

Adding an Array of Objects into an external Web-Service

Hi all,
I want to populate an Array of Objects into an external Web-Service which I have introspected into BPM. But I am finding it difficult to do so which should be very easy I guess.
When i use the EXTEND keyword for adding the array of objects, it gives me the following parameters which are not required:-
testArray.records.extend(name : "", attributes : null, value : "", children : { }, tagName : "", namespace : "", isNil : false);
I only need to populate the name and value pairs and do not need to populate others. But there is no way for me to do this.. How do I populate other parameters or skip them especially
children which is a Fuego.Xml.XMLObject[].. How do I populate that? How do I populate attributes which is an associative array and not required..
Is there a proper documentation of consuming external Web-Services into BPM?

Very interesting, I am going to have to really break this down and see if I can make sense out of it with my 300 lines of code LOL.
I think this may jsut work at first glance and will let you know!
It works. We all use it all of the time. The old Add-Member was a big pain in the neck. InPowerShell V2 New-Object -Property ws added to take a hash of name/value pairs and convert them into an object in one step. It is faster and more reliable.
$myprops=@{
    Name='joe'
    Birthdate=[datetime]'02-12-1965'
    Weight=[int]130
    Married=$false
    Flags=[byte]0x3F
# we can change a value on the fly
$myprops.Weight+=5 # adjust weight for liars
New-Object PsObject -Property $myprops
OR get name=value pairs from a file and make into an object
$fileprops=Get-Content mydata.txt | ConvertFrom-StringData
New-Object PsObject -Property $fileProps
There are more than a dozen other variations of how to levcerage this to create objects out of other things like results from old DOS commands.
¯\_(ツ)_/¯

PFCG, two roles with the same object but different values

Hi, Can you help me?
I need to know if it's possible have two roles like this:
role A - Object werks = L001 and LIKP-LFART = LF
role B - Object werks = L005 and LIKP-LFART = ZLF
If the some user have role A and role B it's possible that he doesn't have authorization for werks = L005 and LIKP-LFART LF?
Thanks
Dora

I guess you made fat figure on the words: "it's possible that he doesn't have authorization for werks = L005 and LIKP-LFART ZLF", right?
If so, it is impossible.
When SAP doing the authorization check, it call the function "authority_check", input the Object, the filed and the value to check.
if some one have role A and B, SAP will check authority both in Role A and Role B.
What you need to do should be separating the Object into a subrole and assign it separately.
>
Jorge Sousa wrote:
> Hi, Can you help me?
> I need to know if it's possible have two roles like this:
> role A - Object werks = L001 and LIKP-LFART = LF
> role B - Object werks = L005 and LIKP-LFART = ZLF
> If the some user have role A and role B it's possible that he doesn't have authorization for werks = L005 and LIKP-LFART LF?
>
> Thanks
>
> Dora

Need to conver object into -ve value

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