Best option to save data populated from a web service?

I have manage to made a windows form that uses a web service to populate the data into a DataGridView. Then I have a column for adding comments next to each row. So a user could add some comments about this data for each row. Also I have a drop down list
to select some options for each row.
Actually everytime when connecting to this web service there are 7 DataGridViews that are populated with data, one for each TabPage added to a TabControl. So 7 tabs then.
If I close this form and reopen it then it's all gone.
What is the simpliest way if I want to store the settings (comments and selected option in drop down list). The idea is that I want to store this as a project under a name like "Project1", "Project2" etc. So every project would
have their own settings. Then when starting the application all over again, instead of populate it from the webservice, I then load it from wherever it's stored. So I can pick the particular project I want for example "Project1".
So what is the easiest options here? Would it be best to store it in a database or could it be stored in different datasets (one for each project)? Also if I use a dataset every TabPage with it's own unique DataGrid would then be represented as DataTable
I suppose. But then I don't know if the data in a dataset would still be there the next time - if it only stores temporarily?
As for now my only intention is to build this for myself, so I don't need to have any end user in mind.

Hello,
Here is one idea which may be implemented in several ways.
The data stored locally that is not available in the web service (let's look at the web service as read-only) could be stored in a xml file then read into your project via DataSet.ReadXml and DataSetWriteXml to save changes.
For this to work you need to utilize primary keys to identify data coming from the service to match up with locally saved data.
That is the concept which as stated above can be implemented in many ways. I would suggest using a class dedicated to the above and not place the bulk of the code into your forms.
Please remember to mark the replies as answers if they help and unmark them if they provide no help, this will help others who are looking for solutions to the same or similar problem.

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I can't figure out data binding from a web service.

Hi,
I've been trying to figure out how to connect a TreeTable control with data from a non-SAP web server. Here's what I have so far;
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Hi Joe
Here is an small example. Maybe it is useful to you.
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Thanks
-D

Dynamic pagination using inputs from a Web Service data control

I am in process of creating a pagination UI component , much similiar to the one used in Oracle forums eg: Pages: 100 [1 2 3 4 5 | Next ]
I am making use of a Web Service to get the following details for my search results :
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Yes I am using <af:commandLink > component
<af:forEach
var="list" items="#{NavBean.list}">
<af:spacer width="5" height="10" id="s1"/>
<af:panelGroupLayout id="pgl2" layout="horizontal"
halign="center"
inlineStyle="#{list.found ? 'background-color:#aeccd8;' : 'background-color:white;'} text-align:center; width:15px; ">
<af:commandLink text="#{list.character}" id="cl1"
partialSubmit="true"
disabled="#{list.found ? false : true}"
actionListener="#{NavBean.onIndexSelected}">
<f:attribute name="indxKey" value="#{list.character}"/>
</af:commandLink>
</af:panelGroupLayout>
</af:forEach>
I have created a NavBean managed bean with some methods and foll set of instance variable:
List<IndexCharacterObject> list = null;
int startRow;
int endRow;
int pageNumber;
int numPages;
int totalRows;
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How to create XML data source/ and load data from a web service to BI

All,
I m trying to find a 'how to' document (or any document) that shows how to create an XML data source to load data directly from a web service or from an XML file.
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Hi Mike,
Two more for you:----
/thread/111488 [original link is broken]
http://help.sap.com/saphelp_nw70/helpdata/en/e6/1dd53bb90cbb1ae10000000a11402f/content.htm
Regards,
Suman

Some data is missing while returning complex datatype from a web service

Hi
I am returning a complex data type from a web service. complex data type has a super class and some(not all) values from this super class are not being returned to the client. Strange part is that it giving some fields from super class and some values are not returned.
I saw the soap response also it does not show any tag for those fields. but while creating a response i am setting some string values to those fields but i am not getting at client side.
all the serailiastion and deseialization classes where created using ANT tasks and i have checked that all the cedec classes have been created.

for what it's worth, the same problem was reported by one of our developers, although the string size was considerably smaller (probably less then 1 MB). According to him, soap clients generated from apache tools could connect fine and process the XML records. JDev hung. We simply changed our use case to return smaller results sets, but perhaps you could also generate your clients with WSDL2Java rather then JDev (if it is a truly a bug in JDev SOAP)? Can you add record parameters to the payload, in order to limit the results and scroll between remaining rows?

Base data block on a web service

Hy,
I need to integrate an oracle forms application with data provided from other applications (via web services), like countries, cities, users ecc.
there is a way to base a data block (in forms web 6/10 with Java Importer) on a data returned from a web service?
Can i base block on a PL/SQL variable, returned from java, that contains data from web service?
Thanks at all.
Davide

here is a snippet:
PROCEDURE BT_Poll IS
|| Name      : BT_Poll
||
|| Aufgabe   : Hier werden Bücher bestellt
||
|| Autor     : 05.03.2006, VOL
|| Updates   :
R_App SPU_Type.T_App := Init_App ('BT_Poll');
v_list             ORA_JAVA.JARRAY;
R_String           Const_lokal.T_CSV_Datensatz;
E_kein_Webservice EXCEPTION;
PRAGMA EXCEPTION_INIT (E_kein_Webservice, -105100);
v_Akt_Record       NUMBER;
BEGIN
Go_block ('Workitems');
v_Akt_Record := Akt.Record;
Clear_Block;
-- user, pw, server
v_list := BpelWorkflowClient.getAllWorkItems (
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    a1    => Const_lokal.pwd_Buchbesteller,
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FOR i in 0 .. :PARAMETER.PA_ANZ_POLLS - 1
LOOP
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    :WORKITEMS.ISBN           := R_String.Wert_03;
    :WORKITEMS.Buch_Titel     := R_String.Wert_04;
    :WORKITEMS.Autoren        := R_String.Wert_05;
    :WORKITEMS.Preis          := R_String.Wert_06;
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END LOOP;
Go_Record (v_Akt_Record);
IF :PARAMETER.PA_ANZ_POLLS = 0 THEN
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END IF;
EXCEPTION
WHEN E_kein_Webservice THEN
WHEN OTHERS THEN
END;
FUNCTION getAllWorkItems(
    a0    VARCHAR2,
    a1    VARCHAR2,
    a2    VARCHAR2) RETURN ORA_JAVA.JARRAY IS
BEGIN
    args := JNI.CREATE_ARG_LIST(3);
    JNI.ADD_STRING_ARG(args, a0);
    JNI.ADD_STRING_ARG(args, a1);
    JNI.ADD_STRING_ARG(args, a2);
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END;
[/pre]
the getAllWorkItems is a generated Package which wraps the workflow-webservice-method
try it
Gerd

Best Way to Save Data

Hi all, I'm relatively new to Java, and have a quick question.
What is the best way to save data in an application, and what is a good rule of thumb when to dive into a database to hold the information. For example a directory of people and their information. I want the program to be able to add/update/delete the information with ease.
I was reading in Core Java Vol II how to save object data to a file, but it seems tedious if I have to run through a list of objects and save each one. I just want to be able to save records, and retrieve them to edit later.
Thanks in advance,
\\//

UnknownSector wrote:
Hi all, I'm relatively new to Java, and have a quick question.Hy there, when you find some time, go read [How To Ask Questions The Smart Way|http://www.catb.org/~esr/faqs/smart-questions.html], it will help you in the future.
What is the best way to save data in an applicationThere is almost never a "best way" to do anything. At least not if you don't define your requirements exactly. It depends on tons of things, that's why there are so many ways to "save data".
Writing to files and saving to databases are just two of those, and even among those, there are thousand of different ways to handle it.
, and what is a good rule of thumb when to dive into a database to hold the information.When the data is structured and you want to do queries on it, then you can probably look into a database. When the data is structured and you've got lots of it, then you really should look into databases.
For example a directory of people and their information. I want the program to be able to add/update/delete the information with ease.Too little information, but I'd tend to go with a database. But then again, I'm going for a DB rather quickly.
I was reading in Core Java Vol II how to save object data to a file, but it seems tedious if I have to run through a list of objects and save each one.I don't know what exactly you're talking about. Are you talking about serialization? What makes you feel that it is tedious? Can you describe it?
I just want to be able to save records, and retrieve them to edit later.Well, that can be done in many, many ways. That alone doesn't force you to go one way or another. It's pretty much the definition of "save data".

How to save data acquired from NI-DAQ in text format instead of TDMS using the DAQ-mx ANSI C code?

Hi,
I wanted to save data acquired from NI-DAQ (for example, NI 9234) in a file using the DAQ-mx ANSI C Code. The response I got was as follows:-
One way to do it is with TDMS logging. DAQmx comes with functions designed to log to a TDMS file. This is a special file type that is used for collecting data in a logical format. It can be displayed in a TDMS viewer where data is separated into groups and channels. NI-DAQmx provides examples for how to log to TDMS. Look at the TDMS examples in the C:\Users\Public\Documents\National Instruments\NI-DAQ\Examples\DAQmx ANSI C\Analog In\Measure Voltage directory.
However, now I want to know is there a way that using that same C code, can we save the data in a .txt file format (Text File) instead of a TDMS file? We actually want to access that file through MATLAB (that's why we want to save it in text format).
Also on an other note, is there a way we can access & open TDMS files by MATLAB?
Thanks,
Sauvik Das Gupta

There's a way you can access TDMS files in MATLAB:
http://zone.ni.com/devzone/cda/tut/p/id/7446

How to retrieve data from a web service

Hi
i am at very beginner level about web services.
I am searching for a simple example of retrieving data from a web services, but cant find.
How can i get xml data from a web service. i dont need to develop the web service it is already ready, i just need how could i fetch data from it.
Can somebody point out or give an example?
Thanks in advance

Hi,
just create a skeleton for the Web Service. In JDeveloper, create a new project and then use the "NEW" context menu option.
Navigate to "Business Tier" --> Web Services and select "Web Service Proxy"
In teh following, provide the WSDL reference to create the Java proxy. This gives you accss to the WS without having to parse the XML yourself
Frank

Reference for working with a data collection retreived from a Web Service

Does anyone have a good resource / example of working with multi row data collections returned from a web service call?
In addition to the basic return of x data rows, I will also be getting parent child collections. For example,
for each Customer row, 0 or more Customer Invoices
I have found many guides the relate to single values being retrieved by the web service, but I have not found any that refer to data collections.
Best regards,
Thomas

That can all certainly be done with a 13" MBP.
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Get xml data from a web service into Forms?

Hello folks! I am reading active directory info from a web service into forms via imported java classes. I can read from functions that return strings just fine, but I have to get the output from getGroupUsers which returns an XmlDataDocument. How do I read this in and parse it in Forms?
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Thank you,
Gary
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DECLARE
jo ora_java.jobject;
rv varchar2(100);
BEGIN
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Hello,
Since you are already dealing with server-side JAVA, I would suggest you create a method that would do the parsing server-side and what your PL/SQL will be dealing with is just the return string.
Here is a method I use to read an XML file (actually, it is an Oracle Reports file converted to XML) and from the string version, I will do search, replace and other things.
So, from getGroupUsers which returns an XmlDataDocument, you can adapt this method to get your data server-side and let the form module read the output data.
<blockquote>
private String processFileXml(String fileName, int iFile) throws ParserConfigurationException, SAXException,
IOException, XPathExpressionException{
try{
DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
domFactory.setNamespaceAware(true);
InputStream inputStream = new FileInputStream(new File(fileName));
DocumentBuilder builder = domFactory.newDocumentBuilder();
Document doc = builder.parse(inputStream);
StringWriter stw = new StringWriter();
Transformer serializer = TransformerFactory.newInstance().newTransformer();
serializer.transform(new DOMSource(doc), new StreamResult(stw));
return stw.toString();
catch (Exception e){
System.err.println(e);
System.exit(0);
return "OK";
</blockquote>
Let me know if this is of nay help.
Thanks.

Meta data information from dynamic web page

Dear all,
for website searching, we should put the meta data in every page, in my case
i have to get the data from dynamic page(data are coming from database).
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kindly suggest.
thanx,
R. Ramasubramanaim.

Build your web application with BSP, that's all I can say...

Converting string data from a web service respons into XML structure of XI

Hi,
We receive a string structure from a web service.
The string structure has an xml type format, that is all the tags and its content are in one line .
The WSDL file of the webservice defines its response structure as a string type.
How do i convert this string into proper XML structure (predefined by me in Integration repository).
OR how do i make XI understand this string as an XML structure for further processing.
Later i have to map this XML message type into IDoc.
Himani

Hi Himani,
Please find the code for ur requirement -
String need to parse -<response_webservice><from_date>20080101</from_date><to_date>20080202</to_date></response_webservice>
Below mentioned code will convert it to -<MT_DATA><FROMDATE>20080202</FROMDATE><TODATE>20080101</TODATE></MT_DATA>
Create a Message type and map it like this using java mapping ( no need to use Graphical mapping).
Use MT_DATA as source and map it to your target structure .
import java.io.FileInputStream;
import java.io.IOException;
import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerFactoryConfigurationError;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class XMLParser {
     private Map param = null;
     public static void main(String[] args) {
          try {
               XMLParser wdb = new XMLParser();
               wdb.parse();
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               e.printStackTrace();
     public void setParameter(Map param) {
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          if (param == null) {
               this.param = new HashMap();
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          String document = "<response_webservice><from_date>20080101</from_date><to_date>20080202</to_date></response_webservice>";
          try {
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               DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
               // Using factory get an instance of document builder
               DocumentBuilder db = dbf.newDocumentBuilder();
               // parse using builder to get DOM representation of the XML file
               sdoc = db.parse(new InputSource(new StringReader(document)));
               Element docEle = sdoc.getDocumentElement();
               NodeList nl = docEle.getElementsByTagName("from_date");
               Element lstElmnt = (Element) nl.item(0);
               NodeList nl1 = docEle.getElementsByTagName("to_date");
               Element fstElmnt = (Element) nl1.item(0);
               System.out.println(fstElmnt.getFirstChild().getNodeValue());
               System.out.println(lstElmnt.getFirstChild().getNodeValue());
               Document tdoc = db.newDocument();
               Element structure = createElement("MT_DATA", null, tdoc);
               tdoc.appendChild(structure);
               Element statement = createElement("FROMDATE", fstElmnt.getFirstChild().getNodeValue(), tdoc);
               structure.appendChild(statement);
               Element statement2 = createElement("TODATE", lstElmnt.getFirstChild().getNodeValue(), tdoc);
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               System.out.println("Struct is :::"+tdoc.getDocumentElement().toString());
          } catch (DOMException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (FactoryConfigurationError e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (ParserConfigurationException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (SAXException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (TransformerFactoryConfigurationError e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
     static Element createElement(String elementName, String content,
               Document document) {
          Element returnElement;
          returnElement = document.createElement(elementName);
          if (content != null) {
               Text T = document.createTextNode(content);
               returnElement.appendChild(T);
          return returnElement;
     static Element createElement(String elementName, String content,
               String attributeName, String attributeValue, Document document) {
          Element returnElement = createElement(elementName, content, document);
          returnElement.setAttribute(attributeName, attributeValue);
          return returnElement;
Regards,
Kishore

Calculations in Xcelsius using data generated by a Web Service Connection

Hi,
I have set up a web service connection to pull in 4 columns of data: 1. CATEGORY 2. SUBCATEGORY 3. PRODUCT TYPE   4.#OFCALLS. There will be anywhere from 1 to 500 rows of data depending on day of week and time of day. The web service sorts the list by #OFCALLS descending. The OUTPUT VALUES of the web service connection are mapped to cells A19:D518.
Formulas in the spreadsheet take the Top 10 from the list and populate it to cells A4:D13. A formula in cell D15 sums the #OFCALLS for the entire web service connection output (A19:D518).
The data in A4:D15 is mapped to a spreadsheet table on my canvas.   When the report generates, the data from the TOP 10 of the web service connection populates properly, but the cell that should reflect the TOTAL#OFCALLS (D15) shows zero.
Is it not possible to do additional calculations in the spreadsheet based on data generated by the web service connection? A major difference between using an XML Map and a Web Service Connection is the XML Map actually populates the spreadsheet with the new data when it is refreshed. The Web Service connection data never actually appears in the spreadsheet itself, even though it updates to the appropriate vessel on the canvas.   This makes me think that no additional calculations can be done in the spreadsheet based on the web service connection data.
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Can anyone clarify this for me? If I failed to give any pertinent info let me know what it is, and I will update my post.
Thanks!

I have seen similar behavior as well. I have live data coming into Xcelsius from a data connection.
A supported Excel formula
=IF(ISBLANK(J2),I2,VALUE(TODAY()-J2))
is then applied to one of the columns to create an additional derived column.
Taking a snapshot of the data shows that the derived column is being populated, however the controls I've tried hooking up to the derived column (charts and labels) are always empty.
Information on whether this is supported would be appreciated.
Thank you,
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Crystal Reports 2008 fails when called from e Web Service under 64bit OS

I have discovered that Crystal Reports 2008 doesn't work when called from a Web Service running under 64bit Windows platforms (in my case Windows 2003 Server and Windows XP 64bit); practically no object is instantiated. I've tried several solutions without success.
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Hi Sergio,
Before I mark this post as assumed answered I would just like to say and re-iterate that at this time there is no one answer and we fully understand your concerns. As you know in CR 6.0 it came in 16 and 32 bit versions because at the time 32 bit was relatively new but 16 bit was the norm. This is also true for 32 to 64 bit, 32 is the norm and 64 bit is relatively new. We know and are well aware 64 bit is the future and we are working as quickly as we can to move in that direction. Because of the complexity of the Product it's not simply a matter of re-compiling all of our dll's in 64 bit format. The core of our data connectivity with our database drivers which are dependant on third party clients must also need to support 64 bit modes. This as well as Printer drivers also need to be 64 compatable, there are a multitude of dependencies that we rely on that must add 64 bit support. As a programmer you are well aware of the issues around Thunking back and forth between 32 to 64 bits, it can cause delays and potentially loss of data which is a whole other issue. Not to mention also that we would have to ship both versions potentially doubling the size of the distribution packages or doubling the size of the dll's to have the ability to work in both modes. Relatively speaking of course, it would not be double the size but the variables would need to be able to allocate 32 or 64 memory blocks.
The other option is to produce 2 separate versions, this alone is a massive project. Any issue would need to be fixed in separate code streams.
So I'm sure you can see it's not simply a matter of saying yes we support 64 bit. It's a massive project that is going to take time to do and we have to wait for the third party drivers to commit also.
Visual Studio .NET 2005 and 2008 is the only option if you want true 64 bit but you will be limited on what DB's you can support and export formats you can export to. They are the only drivers we did convert to 64 bit.
Thank you for your understanding
Don

Best option to save data populated from a web service?

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