Define a function at runtime...

is it possible to define a function at runtime and call it...?
i.e i have a program thats makes a call to some function xxx() in a class Abc
but there is no definition for xxx() yet..hence during runtime the user types in the code and compiles it and then can he call the function xxx() from my program....? if so how..
Thank you

georgemc wrote:
corlettk wrote:
Both languages can be used from within a Java application.But you can't call-back Groovy methods from your java-app, can you?Sure you can! It compiles down to bytecode. Even code-weaving tools like AspectJ work with Groovy. If the OP really does need what he's asking for, Groovy or BeanShell are pretty much exactly what he's looking for. If it's what he really wants
Have a butcher's hook at [this wackiness|http://groovy.codehaus.org/ExpandoMetaClass+-+Dynamic+Method+Names]
My goodness me, what will they think of next.
I do like Groovy, and Jython, and BeanScript already... but I've barely scratched the surface of any of them. Maybe I should... Hmmm...
Thank you George.
Slange. Keith.

Similar Messages

Define the class at runtime?

Hi,
is it possible to do something like the following:
    public function readGenericClassEntity(myClass:Class,ac:ArrayCollection):void{
        var entity:myClass=myClass(ac.getItemAt(dataGrid.selectedIndex));
The part "entity:myClass" gives a compiler error:
     Type was not found or was not a compile-time constant: myClass.
So is it possible to define the class at runtime?
Thanks for any pointers!
Martin Zach

Hi Jason,
thank you for your answer, one possible solution.
I used the solution from:
http://thillerson.wordpress.com/2007/03/01/runtime-class-instantiation-in-actionscript-30/ #comment-951
Thank worked fine for me!
Cheers!
Martin Zach

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

XSLT Mapping - user defined Extension function

Hi to all,
can somebody helps me, please?
I need an own function, that can be used by the XSL Mapper. First I have only tried the sample given in Path <BPELPM>\integration\orabpel\samples\demos\XSLMapper\ExtensionFunctions
There is a java file with the defined functions and a xml file with the definition of this function for the mapper and last but not least a jar-file with the java class.
I have copied the jar to <JDEV_HOME>\jdev\lib\ext directory and in JDeveloper I have added SampleExtensionFunctions.xml to Tools->Preferences->XSL Map -> "User Defined Extension Functions Config File" field. After a restart of JDeveloper I find 2 new functions in the "User Defined Extension Functions" component palette page when a XSL Map is open. That's fine.
But if I test the mapping I get an error: "Failed to transform source XML.
java.lang.NoSuchMethodException: For extension function, could not find method org.apache.xpath.objects.XNodeSet.replaceChar([ExpressionCotext,]#STRING, #STRING)."
What is wrong?
Thanks in advance of your answer
best regard,
uno

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)"/>

Can we define a function in a sub process?

Hi ,
I want to know whether we can define a function in a sub-process ? coz I see only notifications defined in the sub_process in seeded oracle workflows .
also highlight if we are the running the workflow from developer studio do we need call the main process first or the sub-process first ?
Regards,
Shashk

Hello Shashk,
Yes functions can be used in sub-processes. If you are creating a custom function, it must be defined in a specific fashion to work with WF. See the Workflow Developer Guide for your version. 2.6.2 available here:
[http://download.oracle.com/docs/cd/B10501_01/workflow.920/a95265/toc.htm|http://download.oracle.com/docs/cd/B10501_01/workflow.920/a95265/toc.htm]
Not sure about Developer Studio per se but typically you can run any process in a workflow that is marked 'runnable'.
- James

Is it possible to define a function in the MathScript Node

Is it possible to define a function in the MathScript Node

You can not define a function inside of a MathScript Node, but only because it isn't necessary. The way custom functions work in MathScript is that they are saved in .m files located in paths in the MathScript path list. When the MathScript compiler receives a function that it doesn't recognize, then it searches for it in the path list, and upon finding it, compiles and loads the function. You can specify these search paths manually by going to File>>MathScript Preferences from the MathScript Window or dynamically by using the path() command within a script.
To answer your original question, if you would like to create custom functions dynamically within a VI, then you can simply build your custom functions using strings and then save them to an ASCII file with the extension .m. You could either save the file to a path already in the MathScript path list or you could dynamically specify the path by passing the path into a MathScript Node as a string and by using the path() command at the beginning of your script to set it.
Kind Regards,
E. Sulzer
Applications Engineer
National Instruments

User defined xquery function with index enabled

If I use user defined xquery function, can the index be applied within the function?
trados.xsd
<?xml version="1.0" encoding="UTF-8"?>

<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xdb="http://xmlns.oracle.com/xdb" xmlns:tns="http://ecoit.hp.com/ecg/repository/trados" targetNamespace="http://ecoit.hp.com/ecg/repository/trados" elementFormDefault="qualified">
     <complexType name="entry">
          <sequence>
               <element name="base" type="string"/>
               <element name="translation" maxOccurs="unbounded">
                    <complexType>
                         <simpleContent>
                              <extension base="string">
                                   <attribute name="lang"/>
                              </extension>
                         </simpleContent>
                    </complexType>
               </element>
          </sequence>
          <attribute name="xpath" type="string" use="required" xdb:SQLName="XPATH"/>
          <attribute name="locator" type="string" use="required"/>
     </complexType>
     <simpleType name="languages">
          <list itemType="string"/>
     </simpleType>
     <element name="trados" xdb:defaultTable="ECG_REP_TRADOS_TAB" xdb:tableProps="VARRAY XMLDATA.ENTRY STORE AS TABLE ECG_REP_TRADOS_ENTRY_TAB ((PRIMARY KEY (NESTED_TABLE_ID, SYS_NC_ARRAY_INDEX$)) ORGANIZATION INDEX OVERFLOW)">
          <complexType>
               <sequence>
                    <element name="entry" type="tns:entry" minOccurs="0" maxOccurs="unbounded" xdb:SQLName="ENTRY"/>
               </sequence>
               <attribute name="cid" type="string"/>
               <attribute name="path" type="string"/>
               <attribute name="lang" type="string"/>
               <attribute name="langs" type="tns:languages"/>
               <attribute name="oldversion" type="string"/>
          </complexType>
     </element>
</schema>
CREATE INDEX ECG_REP_ENTRY_XPATH_IDX ON ECG_REP_TRADOS_ENTRY_TAB ("XPATH", "NESTED_TABLE_ID")
eco_category.xsd
<?xml version="1.0" encoding="UTF-8"?>


<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xdb="http://xmlns.oracle.com/xdb" xmlns:tns="http://ecoit.hp.com/ecg/repository/eco/category" xmlns:cns="http://ecoit.hp.com/ecg/repository/types" targetNamespace="http://ecoit.hp.com/ecg/repository/eco/category" elementFormDefault="qualified">
     <import namespace="http://ecoit.hp.com/ecg/repository/types" schemaLocation="../types.xsd"/>
     <complexType name="productFamilies">
          <sequence>
               <element name="productFamily" type="tns:productFamily" minOccurs="0" maxOccurs="unbounded"/>
               <element name="product" type="tns:product" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>
          <attribute name="lang" use="required" xdb:SQLName="LANG">
               <simpleType>
                    <restriction base="string">
                         <length value="5"/>
                    </restriction>
               </simpleType>
          </attribute>
          <attribute name="version" use="required" xdb:SQLName="VERSION">
               <simpleType>
                    <restriction base="string">
                         <maxLength value="100"/>
                    </restriction>
               </simpleType>
          </attribute>
     </complexType>
     <complexType name="productCategory">
          <sequence>
               <element name="label" type="cns:label"/>
               <element name="productCategory" type="tns:productCategory" minOccurs="0" maxOccurs="unbounded" xdb:defaultTable="ECG_REP_ECO_CATALOG_PC_TAB"/>
               <element name="product" type="tns:product" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>
          <attribute name="id" type="cns:id" use="required"/>
     </complexType>
     <complexType name="productCategories">
          <sequence>
               <element name="productCategory" type="tns:productCategory" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>
     </complexType>
     <complexType name="column">
          <sequence>
               <element name="label" type="cns:label"/>
          </sequence>
          <attribute name="id" type="cns:id" use="required"/>
     </complexType>
     <complexType name="product">
          <sequence>
               <element name="label" type="cns:label"/>
               <element name="column" type="tns:column" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>
          <attribute name="id" type="cns:id" use="required"/>
     </complexType>
     <complexType name="productFamily">
          <sequence>
               <element name="label" type="cns:label"/>
               <element name="image" type="cns:image" minOccurs="0" maxOccurs="unbounded"/>
               <element name="link" type="cns:link" minOccurs="0" maxOccurs="unbounded"/>
               <element name="column" type="tns:column" minOccurs="0" maxOccurs="unbounded"/>
               <element name="productCategories" type="tns:productCategories" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>
          <attribute name="id" type="cns:id" use="required"/>
     </complexType>
     <element name="productFamilies" type="tns:productFamilies" xdb:defaultTable="ECG_REP_ECO_CATALOG_TAB"/>
</schema>
xquery
xquery version "1.0";
declare namespace typ = "http://ecoit.hp.com/ecg/repository/types";
declare namespace c = "http://ecoit.hp.com/ecg/repository/eco/category";
declare namespace t = "http://ecoit.hp.com/ecg/repository/trados";
declare variable $c := $res/c:productFamilies;
declare function local:pc($pc as element(c:productCategory), $x as xs:string) as element()
     <c:productCategory id="{$pc/@id}">
          <c:label>{data($es/t:entry[@xpath eq concat($x, "/label")]/t:translation)}</c:label>
          for $p in $pc/c:product
          return local:p($p, concat($x, "/product/[@id=", $p/@id, "]"))
          for $pcc in $pc/c:productCategory
          return local:pc($pcc, concat($x, "/productCategory[@id=", $pcc/@id, "]"))
     </c:productCategory>
declare function local:p($p as element(c:product), $x as xs:string) as element()
     <c:product id="{$p/@id}">
          <c:label>{string($es/t:entry[@xpath eq concat($x, "/label")]/t:translation)}</c:label>
          for $col in $p/c:column
          return
          <c:column id="{$col/@id}">
               <c:label>
                    let $e := $es/t:entry[@xpath eq concat($x, "/column[@id=", $col/@id, "]/label")]
                    return
                    if(exists($e)) then string($e/t:translation)
                    else $col/c:label/text()
               </c:label>
          </c:column>
     </c:product>
<c:productFamiles xsi:schemaLocation="http://ecoit.hp.com/ecg/repository/eco/category http://ecoit.hp.com/ecg/repository/eco/category.xsd http://ecoit.hp.com/ecg/repository/types http://ecoit.hp.com/ecg/repository/types.xsd" lang="{$lang/lang/text()}" version="{$c/@version}">
     for $pf in $c/c:productFamily
     let $x := concat("/productFamily[@id=", $pf/@id, "]")
     return
     <c:productFamily id="{$pf/@id}">
(:xpath index can not be applied within function:)
          <c:label>{data($es/t:entry[@xpath eq concat($x, "/label")]/t:translation)}</c:label>
          for $img in $pf/c:image
          return $img
          for $link in $pf/c:link
          return $link
          for $col in $pf/c:column
          return
          <c:column id="{$col/@id}">
               <c:label>{data($es/t:entry[@xpath eq concat($x, "/column[@id=", $col/@id, "]/label")]/t:translation)}</c:label>
          </c:column>
          for $pcs in $pf/c:productCategories
          return
          <c:productCategories>
               for $pc in $pcs/c:productCategory
               return local:pc($pc, concat($x, "/productCategories/productCategory[@id=", $pc/@id, "]"))
          </c:productCategories>
     </c:productFamily>
     for $p in $c/c:product
     return local:p($p, concat("/product[@id=", $p/@id, "]"))
</c:productFamiles>
Message was edited by:
John Lee

John
Am i missing a bit of the Xquery
In 11.1,0.6.0 I get
Elapsed: 00:00:00.04
SQL> set echo on
SQL> spool testcase.log
SQL> --
SQL> connect sys/ as sysdba
Enter password:
Connected.
SQL> set define on
SQL> set timing on
SQL> --
SQL> define USERNAME = HPECO
SQL> --
SQL> def PASSWORD = HPECO
SQL> --
SQL> def USER_TABLESPACE = USERS
SQL> --
SQL> def TEMP_TABLESPACE = TEMP
SQL> --
SQL> drop user &USERNAME cascade
2 /
old   1: drop user &USERNAME cascade
new   1: drop user HPECO cascade
User dropped.
Elapsed: 00:00:18.12
SQL> grant create any directory, drop any directory, connect, resource, alter session, create view to &USERNAME identified by &PASSW
ORD
2 /
old   1: grant create any directory, drop any directory, connect, resource, alter session, create view to &USERNAME identified by &P
ASSWORD
new   1: grant create any directory, drop any directory, connect, resource, alter session, create view to HPECO identified by HPECO
Grant succeeded.
Elapsed: 00:00:00.03
SQL> alter user &USERNAME default tablespace &USER_TABLESPACE temporary tablespace &TEMP_TABLESPACE
2 /
old   1: alter user &USERNAME default tablespace &USER_TABLESPACE temporary tablespace &TEMP_TABLESPACE
new   1: alter user HPECO default tablespace USERS temporary tablespace TEMP
User altered.
Elapsed: 00:00:00.00
SQL> connect &USERNAME/&PASSWORD
Connected.
SQL> --
SQL> alter session set events ='19027 trace name context forever, level 0x800'
2 /
Session altered.
Elapsed: 00:00:00.00
SQL> --
SQL> declare
2    xmlschema xmltype := XMLTYPE(
3 '<?xml version="1.0" encoding="UTF-8"?>
4 
5 <schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xdb="http://xmlns.oracle.com/xdb" xmlns:tns="http://ecoit.hp.com/ecg/rep
ository/types" targetNamespace="http://ecoit.hp.com/ecg/repository/types" elementFormDefault="qualified">
6     <complexType name="item">
7             <simpleContent>
8                     <extension base="tns:content">
9                             <attribute name="id" type="tns:id" use="required"/>
10                     </extension>
11             </simpleContent>
12     </complexType>
13     <complexType name="items">
14             <sequence>
15                     <element name="item" type="tns:item" maxOccurs="unbounded"/>
16             </sequence>
17             <attribute name="id" type="tns:id" use="required"/>
18     </complexType>
19     <complexType name="mappings">
20             <sequence>
21                     <element name="item" type="tns:item" minOccurs="0" maxOccurs="unbounded"/>
22                     <element name="items" type="tns:items" minOccurs="0" maxOccurs="unbounded"/>
23             </sequence>
24     </complexType>
25     <complexType name="local">
26             <sequence>
27                     <element name="common">
28                             <complexType>
29                                     <sequence>
30                                             <element name="texts" type="tns:mappings"/>
31                                             <element name="images" type="tns:mappings" minOccurs="0"/>
32                                     </sequence>
33                             </complexType>
34                     </element>
35                     <element name="section" minOccurs="0" maxOccurs="unbounded">
36                             <complexType>
37                                     <sequence>
38                                             <element name="texts" type="tns:mappings"/>
39                                             <element name="images" type="tns:mappings" minOccurs="0"/>
40                                     </sequence>
41                                     <attribute name="id" use="required">
42                                             <simpleType>
43                                                     <restriction base="string">
44                                                             <maxLength value="32"/>
45                                                     </restriction>
46                                             </simpleType>
47                                     </attribute>
48                             </complexType>
49                     </element>
50             </sequence>
51             <attribute name="lang" use="required" xdb:SQLName="LANG">
52                     <simpleType>
53                             <restriction base="string">
54                                     <length value="5"/>
55                             </restriction>
56                     </simpleType>
57             </attribute>
58     </complexType>
59     <complexType name="link">
60             <sequence>
61                     <element name="url" type="tns:url"/>
62                     <element name="label" type="tns:label"/>
63                     <element name="image" type="tns:image" minOccurs="0"/>
64             </sequence>
65             <attribute name="id" type="tns:id"/>
66     </complexType>
67     <complexType name="image">
68             <sequence>
69                     <element name="url" type="string"/>
70                     <element name="label" type="tns:label" minOccurs="0"/>
71             </sequence>
72             <attribute name="id" type="tns:id" use="optional"/>
73     </complexType>
74     <simpleType name="id">
75             <restriction base="string">
76                     <maxLength value="100"/>
77             </restriction>
78     </simpleType>
79     <simpleType name="label">
80             <restriction base="string">
81                     <maxLength value="200"/>
82             </restriction>
83     </simpleType>
84     <simpleType name="content">
85             <restriction base="string">
86                     <maxLength value="4000"/>
87             </restriction>
88     </simpleType>
89     <simpleType name="url">
90             <restriction base="string">
91                     <maxLength value="256"/>
92             </restriction>
93     </simpleType>
94 </schema>');
95 begin
96    dbms_xmlschema.registerSchema
97    (
98        schemaurl => 'http://ecoit.hp.com/ecg/repository/types.xsd'
99       ,schemadoc => xmlschema
100       ,local     => TRUE
101       ,genBean   => false
102       ,genTypes => TRUE
103       ,genTables => TRUE
104       ,ENABLEHIERARCHY => DBMS_XMLSCHEMA.ENABLE_HIERARCHY_NONE
105    );
106 end;
107 /
PL/SQL procedure successfully completed.
Elapsed: 00:00:01.35
SQL>
SQL> declare
2    xmlschema xmltype := XMLTYPE(
3 '<?xml version="1.0" encoding="UTF-8"?>
4 
5 <schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xdb="http://xmlns.oracle.com/xdb" xmlns:tns="http://ecoit.hp.com/ecg/rep
ository/trados" targetNamespace="http://ecoit.hp.com/ecg/repository/trados" elementFormDefault="qualified">
6     <complexType name="entry">
7             <sequence>
8                     <element name="base" type="string"/>
9                     <element name="translation" maxOccurs="unbounded">
10                             <complexType>
11                                     <simpleContent>
12                                             <extension base="string">
13                                                     <attribute name="lang"/>
14                                             </extension>
15                                     </simpleContent>
16                             </complexType>
17                     </element>
18             </sequence>
19             <attribute name="xpath" type="string" use="required" xdb:SQLName="XPATH"/>
20             <attribute name="locator" type="string" use="required"/>
21     </complexType>
22     <simpleType name="languages">
23             <list itemType="string"/>
24     </simpleType>
25     <element name="trados" xdb:defaultTable="ECG_REP_TRADOS_TAB" xdb:tableProps="VARRAY XMLDATA.ENTRY STORE AS TABLE ECG_REP_TRA
DOS_ENTRY_TAB ((PRIMARY KEY (NESTED_TABLE_ID, SYS_NC_ARRAY_INDEX$)) ORGANIZATION INDEX OVERFLOW)">
26             <complexType>
27                     <sequence>
28                             <element name="entry" type="tns:entry" minOccurs="0" maxOccurs="unbounded" xdb:SQLName="ENTRY"/>
29                     </sequence>
30                     <attribute name="cid" type="string"/>
31                     <attribute name="path" type="string"/>
32                     <attribute name="lang" type="string"/>
33                     <attribute name="langs" type="tns:languages"/>
34                     <attribute name="oldversion" type="string"/>
35             </complexType>
36     </element>
37 </schema>');
38 begin
39    dbms_xmlschema.registerSchema
40    (
41        schemaurl => 'http://ecoit.hp.com/ecg/repository/trados.xsd'
42       ,schemadoc => xmlschema
43       ,local     => TRUE
44       ,genBean   => false
45       ,genTypes => TRUE
46       ,genTables => TRUE
47       ,ENABLEHIERARCHY => DBMS_XMLSCHEMA.ENABLE_HIERARCHY_NONE
48    );
49 end;
50 /
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.68
SQL> declare
2    xmlschema xmltype := XMLTYPE(
3 '<?xml version="1.0" encoding="UTF-8"?>
4 
5 
6 <schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xdb="http://xmlns.oracle.com/xdb" xmlns:tns="http://ecoit.hp.com/ecg/rep
ository/eco/category" xmlns:cns="http://ecoit.hp.com/ecg/repository/types" targetNamespace="http://ecoit.hp.com/ecg/repository/eco/c
ategory" elementFormDefault="qualified">
7     <import namespace="http://ecoit.hp.com/ecg/repository/types" schemaLocation="http://ecoit.hp.com/ecg/repository/types.xsd"/>
8     <complexType name="productFamilies">
9             <sequence>
10                     <element name="productFamily" type="tns:productFamily" minOccurs="0" maxOccurs="unbounded"/>
11                     <element name="product" type="tns:product" minOccurs="0" maxOccurs="unbounded"/>
12             </sequence>
13             <attribute name="lang" use="required" xdb:SQLName="LANG">
14                     <simpleType>
15                             <restriction base="string">
16                                     <length value="5"/>
17                             </restriction>
18                     </simpleType>
19             </attribute>
20             <attribute name="version" use="required" xdb:SQLName="VERSION">
21                     <simpleType>
22                             <restriction base="string">
23                                     <maxLength value="100"/>
24                             </restriction>
25                     </simpleType>
26             </attribute>
27     </complexType>
28     <complexType name="productCategory">
29             <sequence>
30                     <element name="label" type="cns:label"/>
31                     <element name="productCategory" type="tns:productCategory" minOccurs="0" maxOccurs="unbounded" xdb:defaultTa
ble="ECG_REP_ECO_CATALOG_PC_TAB"/>
32                     <element name="product" type="tns:product" minOccurs="0" maxOccurs="unbounded"/>
33             </sequence>
34             <attribute name="id" type="cns:id" use="required"/>
35     </complexType>
36     <complexType name="productCategories">
37             <sequence>
38                     <element name="productCategory" type="tns:productCategory" minOccurs="0" maxOccurs="unbounded"/>
39             </sequence>
40     </complexType>
41     <complexType name="column">
42             <sequence>
43                     <element name="label" type="cns:label"/>
44             </sequence>
45             <attribute name="id" type="cns:id" use="required"/>
46     </complexType>
47     <complexType name="product">
48             <sequence>
49                     <element name="label" type="cns:label"/>
50                     <element name="column" type="tns:column" minOccurs="0" maxOccurs="unbounded"/>
51             </sequence>
52             <attribute name="id" type="cns:id" use="required"/>
53     </complexType>
54     <complexType name="productFamily">
55             <sequence>
56                     <element name="label" type="cns:label"/>
57                     <element name="image" type="cns:image" minOccurs="0" maxOccurs="unbounded"/>
58                     <element name="link" type="cns:link" minOccurs="0" maxOccurs="unbounded"/>
59                     <element name="column" type="tns:column" minOccurs="0" maxOccurs="unbounded"/>
60                     <element name="productCategories" type="tns:productCategories" minOccurs="0" maxOccurs="unbounded"/>
61             </sequence>
62             <attribute name="id" type="cns:id" use="required"/>
63     </complexType>
64     <element name="productFamilies" type="tns:productFamilies" xdb:defaultTable="ECG_REP_ECO_CATALOG_TAB"/>
65 </schema>
66 ');
67 begin
68    dbms_xmlschema.registerSchema
69    (
70        schemaurl => 'http://ecoit.hp.com/ecg/repository/eco/category.xsd'
71       ,schemadoc => xmlschema
72       ,local     => TRUE
73       ,genBean   => false
74       ,genTypes => TRUE
75       ,genTables => TRUE
76       ,ENABLEHIERARCHY => DBMS_XMLSCHEMA.ENABLE_HIERARCHY_NONE
77    );
78 end;
79 /
PL/SQL procedure successfully completed.
Elapsed: 00:00:01.65
SQL> CREATE INDEX ECG_REP_ENTRY_XPATH_IDX ON ECG_REP_TRADOS_ENTRY_TAB ("XPATH", "NESTED_TABLE_ID")
2 /
Index created.
Elapsed: 00:00:00.01
SQL> set pages 0 lines 160
SQL> set long 10000
SQL> --
SQL> set autotrace on explain
SQL> --
SQL> xquery
2 xquery version "1.0";
3
4 declare namespace typ = "http://ecoit.hp.com/ecg/repository/types";
5 declare namespace c = "http://ecoit.hp.com/ecg/repository/eco/category";
6 declare namespace t = "http://ecoit.hp.com/ecg/repository/trados";
7
8 declare variable $c := $res/c:productFamilies;
9
10 declare function local:pc($pc as element(c:productCategory), $x as xs:string) as element() {
11     <c:productCategory id="{$pc/@id}">
12     {
13             <c:label>{data($es/t:entry[@xpath eq concat($x, "/label")]/t:translation)}</c:label>
14             ,
15             for $p in $pc/c:product
16             return local:p($p, concat($x, "/product/[@id=", $p/@id, "]"))
17             ,
18             for $pcc in $pc/c:productCategory
19             return local:pc($pcc, concat($x, "/productCategory[@id=", $pcc/@id, "]"))
20     }
21     </c:productCategory>
22 };
23
24 declare function local:p($p as element(c:product), $x as xs:string) as element() {
25     <c:product id="{$p/@id}">
26     {
27             <c:label>{string($es/t:entry[@xpath eq concat($x, "/label")]/t:translation)}</c:label>
28             ,
29             for $col in $p/c:column
30             return
31             <c:column id="{$col/@id}">
32                     <c:label>
33                     {
34                             let $e := $es/t:entry[@xpath eq concat($x, "/column[@id=", $col/@id, "]/label")]
35                             return
36                             if(exists($e)) then string($e/t:translation)
37                             else $col/c:label/text()
38                     }
39                     </c:label>
40             </c:column>
41     }
42     </c:product>
43 };
44
45 <c:productFamiles xsi:schemaLocation="http://ecoit.hp.com/ecg/repository/eco/category http://ecoit.hp.com/ecg/repository/eco/ca
tegory.xsd http://ecoit.hp.com/ecg/repository/types http://ecoit.hp.com/ecg/repository/types.xsd" lang="{$lang/lang/text()}" versi
on="{$c/@version}"> {
46     for $pf in $c/c:productFamily
47     let $x := concat("/productFamily[@id=", $pf/@id, "]")
48     return
49     <c:productFamily id="{$pf/@id}">
50     {
51             (:xpath index can not be applied within function:)
52             <c:label>{data($es/t:entry[@xpath eq concat($x, "/label")]/t:translation)}</c:label>
53             ,
54             for $img in $pf/c:image
55             return $img
56             ,
57             for $link in $pf/c:link
58             return $link
59             ,
60             for $col in $pf/c:column
61             return
62             <c:column id="{$col/@id}">
63                     <c:label>{data($es/t:entry[@xpath eq concat($x, "/column[@id=", $col/@id, "]/label")]/t:translation)}</c:lab
el>
64             </c:column>
65             ,
66             for $pcs in $pf/c:productCategories
67             return
68             <c:productCategories>
69             {
70                     for $pc in $pcs/c:productCategory
71                     return local:pc($pc, concat($x, "/productCategories/productCategory[@id=", $pc/@id, "]"))
72             }
73             </c:productCategories>
74     }
75     </c:productFamily>
76     ,
77     for $p in $c/c:product
78     return local:p($p, concat("/product[@id=", $p/@id, "]")) } </c:productFamiles>
79 /
ERROR:
ORA-19228: XPST0008 - undeclared identifier: prefix 'res' local-name ''
Elapsed: 00:00:00.01
SQL>

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 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

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?

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)"/>

Report Builder: can i define a function in the rdf file ?

Hi All,
About the report builder, can i define a function in the rdf file ? and then i want invoke it in the report SQL, just like :
function Get_Ap_Prepay_Balance(p_Invoice_Id IN NUMBER, p_End_Date IN DATE) RETURN NUMBER IS
l_Amount number;
begin
RETURN l_Amount;
end;
thanks.

You can create functions in reports, but slightly different from doing it in PL/SQL
function Get_Ap_Prepay_Balance return number is
l_Amount number;
begin
assuming that you have invoice_id in your select statement and p_End_Date is a report parameter, you can refer to them in your function as :p_End_Date and :invoice_id
for example select prepay_amount_remaining into l_Amount from ap_invoice_distributions where invoice_id = :invoice_id and accounting_date = :p_End_Date
return(l_Amount);
hope this helps

Define a function at runtime...

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