How user define matlab function will work in labview

Hi all
iam trying to implenet the matlab function which i have wrote in Matlab 7.9(R2009b)
function [ op ] = myimplement( ip )
the file is attached below
i want to use matlab function in labview ,i have tried Matlab script node but few of function define in matlab function are not working properly
so is any alternative way to implement matlab function in labview environment to implement my algorithm & getting same results
thnaks
waiting for kind reply
iam trying from many days but not geting any results
Attachments:
myimplement.zip ‏2 KB

Hi smercurio_fc nd sry if u mind my double post actually iamin last month of my post graduate research so i want to complete it urgently
iam attaching detail file what iam facing?/
same thing iam doing in Matlab & getting result but while doing in Labview by using Matlab script node not getting
error 1048 is occured
iam attaching word file kindly help me out regarding that problem
i will be thankfull for u
tc
Attachments:
my matlab function.docx ‏134 KB
my matlab function.doc ‏154 KB

Similar Messages

How matlab function is work in labview

hi all
i have implenet a function say
function [op]=myimplement(ip) in Matlab
& i have used it in simulink as Matlab function
as i have attached the both matlab file name & also Simulink file
i want to convert the matlab function int Labview
i have tried by using Matlab script node
but its is not working ??
so where iam doing any mistake??
iam also attaching Labview file as well name funct.vi
waiting for any kind replay
thnaks
Attachments:
prog.zip ‏10 KB
funct.vi ‏13 KB

As it is the Matlab node can't really do anything with that. It would be no different than if you have a .m file. You need to call the function. The Matlab node does not do that automatically (and neither does the Matlab editor). Of course, it's probably simpler to just remove the "function" line and have the last line changed to say
uk=[x_ukp1;x_ykp1;x_zkp1;thetakp1(];
instead of
op=[x_ukp1;x_ykp1;x_zkp1;thetakp1(];
Note: I believe your input variable should be "ip", not "n", since you calculate "n" in the script.

User Defined External Function - How to work?

I have defined some external functions in java by following the description in
C:\OraBPELPM_3\integration\orabpel\samples\demos\XSLMapper\ExtensionFunctions
I can use my functions in JDeveloper, but they do not work on the Oracle BPEL engine.
Is it enough just to place the jar-file in <OC4J_HOME>\j2ee\home\applib and add the jar-file in class-path (as described)?
What about the xml-file specifying the functions (called SampleExtentionFunctions.xml in the documentation)?
Should this file be copied to <OC4J_HOME>\... ?
Here is the error message I get by running my service:
XPath expression failed to execute.
Error while processing xpath expression, the expression is "ora:processXSLT("TransformationInput.xsl", bpws:getVariableData("inputVariable", "request"))", the reason is java.lang.NoSuchMethodException: For extension function, could not find method org.apache.xpath.objects.XNodeSet.leadingZeros([ExpressionContext,] #NUMBER)..
Please verify the xpath query.
______________ MY JAVA CODE EXAMPLE: _____________________________
package extentionfunctions;
This is a sample XSL Mapper User Defined Extension Functions implementation class.
public class JavaExtensionFunctionsBpel
* Inserts leading zeros to a text, if this starts with a digit.
* Else the return value will be the same as the given text.
* The return value will have the specified length.
public static String leadingZeros(String text, int len)
{ String retur = text;
char c = (text == ""?'0':text.charAt(0));
if ('0'<=c && c<='0'+9) { // Is first char a digit?
retur = "";
int n = len - (text == ""?0:text.length());
for (int i=0; i<n; i++) { // Insert zeros:
retur = '0' + retur;
retur = retur + text;
return retur;
* Removes leading zeros from a text.
public static String removeLeadingZeros(String text)
{ String retur = text;
int pos = 0;
int len = (text == ""?0:text.length());
for (int i=0; i<len; i++) {
if (text.charAt(i)=='0') { // Is char a digit?
pos++;
return retur;
public static void main(String[] args)
{ // Basic test of functions:
int len = 5;
String s = "1234";
String r;
System.out.println("leadingZeros("+s+","+len+")="+(r=leadingZeros(s,len)));
System.out.println("removeLeadingZeros("+r+")="+removeLeadingZeros(s));
Regards
Flemming Als

Flemming, it looks like somthing is wrong in the xsl that it still goes to org.apache.xpath.objects.XNodeSet package instead of yours ..
I created a sample that illustrates the usage of this functions (even with 2 params, different types).
Java class (com.otn.samples.xslt.CustomXSLTFunctions)
package com.otn.samples.xslt;
public class CustomXSLTFunctions
<function name="extension:multiplyStringAndInt" as="number">
<param name="base" as="String"/>
<param name="multiplier" as="number"/>
</function>
public int multiplyStringAndInt (String pString, int pMultiplier)
int base = Integer.parseInt(pString);
return base * pMultiplier;
XML descriptor:
Note the types (in the java class and the xml descriptor)
for java:base -> string and for xslt:base -> string
for java:multiplier -> int and for xslt:multiplier -> number
<?xml version="1.0" encoding="UTF-8"?>
<extension-functions>
<functions extension:multiplyStringAndInt="http://www.oracle.com/XSL/Transform/java/com.otn.samples.xslt.CustomXSLTFunctions">
<function name="extension:multiplyStringAndInt" as="number">
<param name="base" as="string"/>
<param name="multiplier" as="number"/>
</function>
</functions>
</extension-functions>
Definition of variables in the process:
(as you can see, the base is a string - I do the conversion in my method, and the return value
is converted to a string by the engine)

<element name="CustomXSLTFunctionProcessRequest">
<complexType>
<sequence>
<element name="base" type="string"/>
<element name="multiplier" type="int"/>
</sequence>
</complexType>
</element>

<element name="CustomXSLTFunctionProcessResponse">
<complexType>
<sequence>
<element name="result" type="string"/>
</sequence>
</complexType>
</element>
Using the new function in the XSL transformation:
- watch out for the namespace declaration (xmlns:sample="...")
- and the usage (sample:multiplyStringAndInt)
<xsl:stylesheet version="1.0"
xmlns:ldap="http://schemas.oracle.com/xpath/extension/ldap"
xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:plnk="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
xmlns:extension="http://www.oracle.com/XSL/Transform/java/com.otn.samples.xslt.CustomXSLTFunctions"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ora="http://schemas.oracle.com/xpath/extension"
xmlns:ns0="http://www.w3.org/2001/XMLSchema"
xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc"
xmlns:client="http://xmlns.oracle.com/CustomXSLTFunction"
exclude-result-prefixes="xsl plnk ns0 client ldap xp20 bpws extension ora orcl">
<xsl:template match="/">
<client:CustomXSLTFunctionProcessResponse>
<client:result>
<xsl:value-of select="extension:multiplyStringAndInt(/client:CustomXSLTFunctionProcessRequest/client:base,/client:CustomXSLTFunctionProcessRequest/client:multiplier)"/>
</client:result>
</client:CustomXSLTFunctionProcessResponse>
</xsl:template>
</xsl:stylesheet>
Then I created a jar file with the class (and for testing the xml descriptor in it)...
and put it into j2ee/home/applib directory
hth clemens

How this Function will work

Hi,
Below these are my variables
Circ
Circle
Circumference
radius
Area
and now i want to know what is this below syntax means. i mean to ask below they r using " =>" how this function will work exactly plz can anyone explain me ,it will be great helpful to me.
circ = circle=>circumference( radius ).
area = circle=>area( radius ).

Hi,
It is a <b>Class Component Selector</b>.
The label <b>class=>comp</b> can be used to access a static component comp of a class without an instance of the class having to be created. The character => is the class component selector. The label class of a class must be to the left of the class component selector. The name comp of the component must be to the right of the object component selector.
The class component selector can also be used to access the data types and constants of an interface.
ifac=>type, ifac=>const
The label ifac of an interface must be to the left of the class component sector. The name type of a data type defined with TYPES or a constant defined with CONSTANTS must be to the right of the object component selector.
<b>Note</b>
It is also possible to access the static components of a class using the object component selector if an instance of the class was created.
<b>Example</b>
Declaration of a class factory and access to its static attribute oref.
CLASS factory DEFINITION CREATE PRIVATE.
PUBLIC SECTION.
    CLASS-DATA oref TYPE REF TO factory.
    CLASS-METHODS class_constructor.
    METHODS do_something.
ENDCLASS.
CLASS factory IMPLEMENTATION.
METHOD class_constructor.
    CREATE OBJECT oref.
ENDMETHOD.
METHOD do_something.
ENDMETHOD.
ENDCLASS.
factory=>oref->do_something( ).
Regards,
Padmam.

How can I call a stateful webservice from a user-defined XPath function?

I'm calling a stateful webservice from a BPEL process using a PartnerLink which implements Custom Header Handler classes to handle the session state, storing the cookie as a property of the PartnerLink.
I'd also like to call this same stateful webservice, in the same session, from a user-defined XPath function enabling me to call this from an XSL Transformation.
Is this in any way possible? Can I access the cookie and attach it to the webservice call made by the user-defined XPath function?

Actually, as long as the servlet returns valid javascript, you can indeed "call it" from the client. It will initiate a request and return the result to the browser.
This example uses Perl, but it could be easily modified to go to a servlet instead.
Note that it is only supported in DOM browsers (IE6+/NN6+/etc)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
<title> Test server-side JS </title>
</head>
<body>
<script type="text/javascript">
function checkIt(variable, value)
var newScript = "cgi-bin/validateJS.cgi?"+variable+"="+value;
var body = document.getElementsByTagName('body').item(0)
var scriptTag = document.getElementById('loadScript');
if(scriptTag) body.removeChild(scriptTag);
script = document.createElement('script');
script.src = newScript;
     script.type = 'text/javascript';
     script.id = 'loadScript';
     body.appendChild(script)
</script>
<p>Test.</p>
<form id="f1" action="">
<input type="text" name="t1" id="t1" onChange="checkIt(this.name, this.value)">
</body>
</html>
validateJS.cgi
#!/opt/x11r6/bin/perl
use CGI qw(:all);
my @valArray = split(/=/,$ENV{QUERY_STRING});
print "Content-type: text/javascript\n\n";
# myPass is the password
$myPass = "foobar";
if ("$valArray[1]" eq "$myPass")
print "alert(\"Success!!\")";
else
print "alert(\"Failure!!\")";

How can I use User-Defined Aggregate Functions in Timesten 11? such as ODCI

Hi
we are using Timesten 11 version and as per the documentation, it doesn't support User-Defined Aggregate Functions.
So we are looking for alternatives to do it. Could you please provide your expert voice on this.
Thanks a lot.
As the following:
create or replace type strcat_type as object (
cat_string varchar2(32767),
static function ODCIAggregateInitialize(cs_ctx In Out strcat_type) return number,
member function ODCIAggregateIterate(self In Out strcat_type,value in varchar2) return number,
member function ODCIAggregateMerge(self In Out strcat_type,ctx2 In Out strcat_type) return number,
member function ODCIAggregateTerminate(self In Out strcat_type,returnValue Out varchar2,flags in number) return
number
How can I use User-Defined Aggregate Functions in Timesten 11? such as ODCIAggregateInitialize ?

Dear user6258915,
You absolutely right, TimesTen doesnt support object types (http://docs.oracle.com/cd/E13085_01/doc/timesten.1121/e13076/plsqldiffs.htm) and User-Defined Aggregate Functions.
Is it crucial for your application? Could you rewrite this functionality by using standart SQL or PL/SQL?
Best regards,
Gennady

User Defined Extension functions XML file

Hi,
Can we define exception In custom XSLT function XML file.
Like i have following Custom XSLT function XML-
<?xml version="1.0" encoding="UTF-8"?>
<extension-functions>
<functions xmlns:uppercase="http://www.oracle.com/XSL/Transform/java/oracle.Uppercase">
<function name="uppercase:GetName" as="string">
<param name="fname" as="string"/>
<param name="lname" as="string"/>
</function>
</functions>
</extension-functions>
So in case i need to throw an exception in my java function GetName so how can i define that in XML?
Please give some suggestion?
Thanks.

Hi,
Thanks for your reply. When I created extensions.xml (as advised by you) and tried specifying it as User Defined Extension Functions Config file, I get the following error:
Invalid User Extension Functions Config File
Invalid value 'object' for attribute:'as' line 5 column 52
i.e. the following line:
<function name="extensions:getMSPDate" as="object">
Any pointers on what will be the correct value for attribute 'as' for element 'function'?
Also, what is the default namespace being used in the extensions.xml?
Is there a link for more documentation on the format for extensions.xml?

Java user-defined transaction management not working correctly???

Hi everyone,
I have encountered a problem when using Java user-defined transaction management in my session bean. It threw an exception but I could not work out what that means. Could anyone comment on this? Thanks.
This BrokerBean is a stateless session calling other entities bean to perform some simple operations. There are 2 Cloudscape databases in use. Invoices (EB) use InvoiceDB and all the other EBs use StockDB.
If I comment out the user-defined transaction management code, then everything works fine. Or if I comment out the Invoices EB code, it is fine as well. It seemed to me that there is something wrong in transaction management when dealing with distributed databases.
--------------- source code ----------------------
public void CreateInvoices(int sub_accno) {
try {
utx = context.getUserTransaction();
utx.begin();
SubAcc subAcc = subAccHome.findByPrimaryKey(new SubAccPK(sub_accno));
String sub_name = subAcc.getSubName();
String sub_address = subAcc.getSubAddress();
Collection c = stockTransHome.findBySubAccno(sub_accno);
Iterator i = c.iterator();
ArrayList a = new ArrayList();
while (i.hasNext()) {
StockTrans stockTrans = (StockTrans)i.next();
int trans_id = stockTrans.getTransID();
String tran_type = stockTrans.getTranType();
int stock_id = stockTrans.getStockID();
float price = stockTrans.getPrice();
Invoices invoices = invoicesHome.create(sub_accno, sub_name, sub_address, trans_id, stock_id, tran_type, price);
stockTrans = stockTransHome.findByPrimaryKey(new StockTransPK(trans_id));
stockTrans.remove();
utx.commit();
utx = null;
} catch (Exception e) {
if (utx != null) {
try {
utx.rollback();
utx = null;
catch (Exception ex) {}
// e.printStackTrace();
throw new EJBException("BrokerBean.CreateInvoices(): " + e.getMessage());
--------------- exception ----------------------
Initiating login ...
Enter Username:
Enter Password:
Binding name:`java:comp/env/ejb/BrokerSB`
EJB test succeed
Test BuyStock!
Test BuyStock!
Test BuyStock!
Test BuyStock!
Test SellStock!
Test SellStock!
Caught an exception.
java.rmi.ServerException: RemoteException occurred in server thread; nested exce
ption is:
java.rmi.RemoteException: BrokerBean.CreateInvoices(): CORBA TRANSACTION
_ROLLEDBACK 9998 Maybe; nested exception is:
org.omg.CORBA.TRANSACTION_ROLLEDBACK: vmcid: 0x2000 minor code: 1806
completed: Maybe
at com.sun.corba.ee.internal.iiop.ShutdownUtilDelegate.mapSystemExceptio
n(ShutdownUtilDelegate.java:64)
at javax.rmi.CORBA.Util.mapSystemException(Util.java:65)
at BrokerStub.CreateInvoices(Unknown Source)
at Client.main(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.enterprise.util.Utility.invokeApplicationMain(Utility.java:22
9)
at com.sun.enterprise.appclient.Main.main(Main.java:155)
Caused by: java.rmi.RemoteException: BrokerBean.CreateInvoices(): CORBA TRANSACT
ION_ROLLEDBACK 9998 Maybe; nested exception is:
org.omg.CORBA.TRANSACTION_ROLLEDBACK: vmcid: 0x2000 minor code: 1806
completed: Maybe
at com.sun.enterprise.iiop.POAProtocolMgr.mapException(POAProtocolMgr.ja
va:389)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:43
1)
at BrokerBean_EJBObjectImpl.CreateInvoices(BrokerBean_EJBObjectImpl.java
:265)
at BrokerBeanEJBObjectImpl_Tie._invoke(Unknown Source)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatchToServant(Ge
nericPOAServerSC.java:520)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.internalDispatch(Gen
ericPOAServerSC.java:210)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatch(GenericPOAS
erverSC.java:112)
at com.sun.corba.ee.internal.iiop.ORB.process(ORB.java:255)
at com.sun.corba.ee.internal.iiop.RequestProcessor.process(RequestProces
sor.java:84)
at com.sun.corba.ee.internal.orbutil.ThreadPool$PooledThread.run(ThreadP
ool.java:99)

Three things:
first, maybe you should think of putting ut.begin() just before the invoicesHome.create() method and ut.commit() just after the stockTrans.remove() method.It wont solve the current problem but will help in performance once the problem is solved.
second, your utx.commit() is outside the try block. how come the code is compiling then??
third, try doing a SOP call before and after invoicesHome.create() method and see where the problem actually lies.
let us know...
Hi SteveW2,
Thanks for being so helpful. Here are my replies:
Can I just ask why you're not using containermanaged
transactions?The reason why I didn't use container managed
transactions is because I don't really know how to do
that. I am more familiar with this user-defined
transaction handling.
I have attempted to implement the same method in an
entity bean and just let the container manage the
rollback itself. The same exception was thrown when
running the client.
Also, the transaction behaviour is likely to relateto
the app server youre using - which is it?What do you mean by the app server? I am using J2EE
1.3.1 if that is what you meant.
Finally, if your code has a problem rolling back,and
throws an exception, you discard your exception
thereby losing useful information.I have tried to print the exception stack as well, but
it is the same as just printing the general
exception.
This problem is very strange cause if I comment out
the transaction management thing, then everything
works fine. Or if I am only working with 1 single
database, with this user-defined transaction handling,
everything works fine as well.
Here is the error log from J2EE server if you are
interested.
------------ error log ---------------
javax.ejb.TransactionRolledbackLocalException:
Exception thrown from bean; nested exception is:
javax.ejb.EJBException: ejbCreate: Connection
previously closed, open another Connection
javax.ejb.EJBException: ejbCreate: Connection
previously closed, open another Connection
     at InvoicesBean.ejbCreate(Unknown Source)
at
InvoicesBean_RemoteHomeImpl.create(InvoicesBean_Remote
omeImpl.java:31)
     at InvoicesHomeStub.create(Unknown Source)
     at BrokerBean.CreateInvoices(Unknown Source)
at
BrokerBean_EJBObjectImpl.CreateInvoices(BrokerBean_EJB
bjectImpl.java:261)
at BrokerBeanEJBObjectImpl_Tie._invoke(Unknown
Source)
at
com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispa
chToServant(GenericPOAServerSC.java:520)
at
com.sun.corba.ee.internal.POA.GenericPOAServerSC.inter
alDispatch(GenericPOAServerSC.java:210)
at
com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispa
ch(GenericPOAServerSC.java:112)
at
com.sun.corba.ee.internal.iiop.ORB.process(ORB.java:25
at
com.sun.corba.ee.internal.iiop.RequestProcessor.proces
(RequestProcessor.java:84)
at
com.sun.corba.ee.internal.orbutil.ThreadPool$PooledThr
ad.run(ThreadPool.java:99)
javax.ejb.TransactionRolledbackLocalException:
Exception thrown from bean; nested exception is:
javax.ejb.EJBException: ejbCreate: Connection
previously closed, open another Connection
at
com.sun.ejb.containers.BaseContainer.checkExceptionCli
ntTx(BaseContainer.java:1434)
at
com.sun.ejb.containers.BaseContainer.postInvokeTx(Base
ontainer.java:1294)
at
com.sun.ejb.containers.BaseContainer.postInvoke(BaseCo
tainer.java:403)
at
InvoicesBean_RemoteHomeImpl.create(InvoicesBean_Remote
omeImpl.java:37)
     at InvoicesHomeStub.create(Unknown Source)
     at BrokerBean.CreateInvoices(Unknown Source)
at
BrokerBean_EJBObjectImpl.CreateInvoices(BrokerBean_EJB
bjectImpl.java:261)
at BrokerBeanEJBObjectImpl_Tie._invoke(Unknown
Source)
at
com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispa
chToServant(GenericPOAServerSC.java:520)
at
com.sun.corba.ee.internal.POA.GenericPOAServerSC.inter
alDispatch(GenericPOAServerSC.java:210)
at
com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispa
ch(GenericPOAServerSC.java:112)
at
com.sun.corba.ee.internal.iiop.ORB.process(ORB.java:25
at
com.sun.corba.ee.internal.iiop.RequestProcessor.proces
(RequestProcessor.java:84)
at
com.sun.corba.ee.internal.orbutil.ThreadPool$PooledThr
ad.run(ThreadPool.java:99)
What is "connection previously closed, open another
connection"? This might be the cause of the
exception.
I'll keep trying till I solve the problem.
Thanks,
Sasuke

HowTo: Business User defining Planning Functions?

Hi all,
does anybody have experience with allowing Business users Defining Planning Functions (e.g. account A = account B - account C) and could share a rough concept? I basically think about Fox-Formulas, but this includes issues with authorization in productive system.
Are there any solutions with translating free-text-Formulas (e.g. defined in an Attribut or flatfile, see scenario below) into ABAP or FOX Code?
Thanks for sharing your ideas and experiences,
Best regards,
Michael
Our scenario:
- Business users are responsible (and authorized) for specific local Companies.
- Values of the Chart of accounts are typed in into a input-ready query.
- for Dummy accounts (e.g. Z01) of the local companies no planning is allowed in the plan version, but business users should be allowed to define a specific formula, such as:
= + *
- these functions run at the end of the planning process in a separate planning version for translating local data into global accounts
- At best these functions should be maintained as an attribut of the dummy accounts or as free text in a text field next to the account in the plan query, but how to translate the formula into a Fox or ABAP formula without great effort?
- When using FOX, the issue is, that it is a different GUI and there would have to be a function for each company (there will come new companies) and so on....

Hi Matthias,
thanks for the post. The problem isnt of keying in the formula isn't that big, this can for example be done in an attribute Char 60 with Flatfile upload for each planning process.
My problem is more
a) if I use FOX Formulas - the usage of fox formulas in productive system for Business User
I still think that using FOX formulas is the easiest thing to implement, but probably the hardest to run and maintain life. Are there any best practises / how tos about authorization and IP architecture for that?
b) if I use formulas as Text - the formula parsing itself and the communication with the planning function
Here you gave me the hint of using customer defined planning functions. That's probably the best thing. I first thought about about a formula parser that is called by fox. Still, parsing free text into structured formulas isn't easy, is it? Are there any how-tows?
best regards,
Michael

Please help for User defined extension functions

the tutorial given for extension functions doesn't work as well as our new functions
even though i follow all the given steps and see the functions in my user defined extension functions tab in xslt map.
all the target nodes that use the extension function disappear in the resulted target xml.
please help.

have you compiled your java file and uploaded the jar file(containg the .class file and the Manifest.MF file) in the <OC4J_HOME>\j2ee\home\applib directory and then restarted the server??

Component Palette --- "User Defined Extension Functions" not visible

I added a User-Defined XPath Extension Function in JDeveloper 11.1.1.3.0 --> Tools > Preferences > SOA As given here http://download.oracle.com/docs/cd/E15523_01/integration.1111/e10224/bp_appx_functs.htm#BEIHEBIJ
But I am not able see "User Defined Extension Functions" section itself in the component palette. Do I need to enable anything for see the section.
Can somebody help.
Thanks

Hi,
I am trying to create user defined extension function in JDeveloper 10.1.3.4 to be used with the Oracle ESB.I have followed the documentation provided by the Oracle to resolve this issue without any success can you please help me in providing me the details how did you resolved this issue.
Anticipating your earliest reply
regards
Narasimha

User defined extension functions

Hi,
I have a requirement to create a user defined extension function.
I followed the demo in the BPEL tutorials,and created the java function and then the extensions.xml.
I have registered the .xml file,and have copied the .jar to jdev/extensions directory.
Once i restart the Jdeveloper i am getting the following error.
Severe(0,0): file:/D:/Software/Jdeveloper/jdevstudio10133/jdev/extensions/LogP1ExtensionFunctions.jar does not contain an extension manifest.
Can anybody help me on this
Thanks in advance
Regards
Ashwini

Hi,
I am trying to create user defined extension function in JDeveloper 10.1.3.4 to be used with the Oracle ESB.I have followed the documentation provided by the Oracle to resolve this issue without any success can you please help me in providing me the details how did you resolved this issue.
Anticipating your earliest reply
regards
Narasimha

Help! Can I have user defined extension function?

Under SQL Sever XML, I can write a xsl script like this:
<msxsl:script language="JScript" implements-prefix="myfunc">
function getvalue(nodelist,name,istag){
var subNode=nodelist.nextNode();
if(subNode == null) return('?');
if(istag == '') name = '@' + name;
var value=subNode.getElementsByTagName(name);
return((value == null)?'':value);
</msxsl:script>
and I can call this function in the xsl, obviously, msxsl supported by microsoft. I know that Oracle XML support Extension function, but you can tell here that I want a user defined function while not a predefined function. Can I have such feature with Oracle XML, and How? Thanks.

Oracle XML support Extension function.
For example:
If we would like to import FAQDBUri.class with user-defined java functions, like TranslateDBUri(), we can write XSL file like this:
<xsl:template match="/" xmlns:dburig="http://www.oracle.com/XSL/Transform/java/FAQDBuri">
<xsl:variable name="urladd" select="dburig:TranslateDBUri($url)"/>

PL/SQL : User defined Aggregate Functions ??

Is it possible to create (using whatever language) a user defined aggregate function for transparent usage within sql ?
e.g.
select median(myField) from myTable
or
select empirical_expectation(myField) from myTable
thanx in advance ..
Tobias Oberstein

HI,
U can create a stored proc. (PL/SQL) for this and call as any other function.
By using external procedure, U can create shared library in C or C++ and coonect this shared library by using external function/procedure. This will be become user-defined procedure.
with regards,
Boby Jose Thekkanath.

8i personal : error when Create user defined aggregate function

Hi,
I have problem on creating user defined aggregate function.
I try to create the sample aggregate function "SecondMax" from 9i developer guide(append at the end of this post).
It's work to create object type and the type body, but
there is error when I create the aggregate function..
"CREATE FUNCTION SecondMax (input NUMBER) RETURN NUMBER
PARALLEL_ENABLE AGGREGATE USING SecondMaxImpl;"
I am using 8i personal now.. is that the syntax of create function in 9i is different from that in 8i?
Example: Creating and Using a User-Defined Aggregate
This example illustrates creating a simple user-defined aggregate function SecondMax() that returns the second-largest value in a set of numbers.
Creating SecondMax()
Implement the type SecondMaxImpl to contain the ODCIAggregate routines.
create type SecondMaxImpl as object
max NUMBER, -- highest value seen so far
secmax NUMBER, -- second highest value seen so far
static function ODCIAggregateInitialize(sctx IN OUT SecondMaxImpl)
return number,
member function ODCIAggregateIterate(self IN OUT SecondMaxImpl,
value IN number) return number,
member function ODCIAggregateTerminate(self IN SecondMaxImpl,
returnValue OUT number, flags IN number) return number,
member function ODCIAggregateMerge(self IN OUT SecondMaxImpl,
ctx2 IN SecondMaxImpl) return number
Implement the type body for SecondMaxImpl.
create or replace type body SecondMaxImpl is
static function ODCIAggregateInitialize(sctx IN OUT SecondMaxImpl)
return number is
begin
sctx := SecondMaxImpl(0, 0);
return ODCIConst.Success;
end;
member function ODCIAggregateIterate(self IN OUT SecondMaxImpl, value IN number)
return number is
begin
if value > self.max then
self.secmax := self.max;
self.max := value;
elsif value > self.secmax then
self.secmax := value;
end if;
return ODCIConst.Success;
end;
member function ODCIAggregateTerminate(self IN SecondMaxImpl, returnValue OUT
number, flags IN number) return number is
begin
returnValue := self.secmax;
return ODCIConst.Success;
end;
member function ODCIAggregateMerge(self IN OUT SecondMaxImpl, ctx2 IN
SecondMaxImpl) return number is
begin
if ctx2.max > self.max then
if ctx2.secmax > self.secmax then
self.secmax := ctx2.secmax;
else
self.secmax := self.max;
end if;
self.max := ctx2.max;
elsif ctx2.max > self.secmax then
self.secmax := ctx2.max;
end if;
return ODCIConst.Success;
end;
end;
Create the user-defined aggregate.
CREATE FUNCTION SecondMax (input NUMBER) RETURN NUMBER
PARALLEL_ENABLE AGGREGATE USING SecondMaxImpl;
Using SecondMax()
SELECT SecondMax(salary), department_id
FROM employees
GROUP BY department_id
HAVING SecondMax(salary) > 9000;

This could be a x64/x86 problem. Try following this thread
[GetCompanyService|GetCompanyService] and recompile your code for the platform you need.

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