Recursive XQuery functions in transformation

Using WLI 8.1sp2, I am trying to create a recursive XQuery function for use
in a data transformation, but I get the error "unbound function: myFunction"
whenever I try to do something like this:
define function myFunction(element $x)
// do something
myFunction($someVar)
If the recursion is not there, it works fine, but that doesn't work for me
as I need recursion. Also, defining functions like
define function a($x)
b($x)
define function b($x)
$x
does not work either, and I get the same "unbound function" error message.
I thought BEA's XQuery implementation was supposed to be 100% compliant with
the August 2002 spec, which states "A function may be defined
recursively--that is, it may reference its own definition."
(http://www.w3.org/TR/2002/WD-xquery-20020816/#FunctionDefns)
I have also tried adding a namespace qualifier to my function definition as
well, but that doesn't work either. The error I get is "the QName
ns0:myFunction is used instead of an expected NCName."
Has anyone gotten recursive functions working in WLI 8.1sp2?
Thanks in advance,
Andy

Is the patch publicly available? I don't see it online at BEA's site.
"bob smith" <[email protected]> wrote in message news:4190ed25$1@mail...
Recursive functions do not work in 8.1sp2. There is a patch;
CR191651
It is fixed in sp4
"Andy Goldstein" <[email protected]> wrote in message
news:4190d370$1@mail...
Using WLI 8.1sp2, I am trying to create a recursive XQuery function foruse
in a data transformation, but I get the error "unbound function:myFunction"
whenever I try to do something like this:
define function myFunction(element $x)
// do something
myFunction($someVar)
If the recursion is not there, it works fine, but that doesn't work for
me
as I need recursion. Also, defining functions like
define function a($x)
b($x)
define function b($x)
$x
does not work either, and I get the same "unbound function" errormessage.
I thought BEA's XQuery implementation was supposed to be 100% compliantwith
the August 2002 spec, which states "A function may be defined
recursively--that is, it may reference its own definition."
(http://www.w3.org/TR/2002/WD-xquery-20020816/#FunctionDefns)
I have also tried adding a namespace qualifier to my function definitionas
well, but that doesn't work either. The error I get is "the QName
ns0:myFunction is used instead of an expected NCName."
Has anyone gotten recursive functions working in WLI 8.1sp2?
Thanks in advance,
Andy

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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">
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     </complexType>
     <simpleType name="languages">
          <list itemType="string"/>
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               <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>

Including customized xquery functions in XQuery/XSLT expression Editor-OSB

Hi,
I have written a customized xquery function. I want this to be included in the List of Xquery Functions which is displayed by Oracle Service Bus in the XQuery/XSLT
Expression Editor. OSB displays the built in xquery functions in the XSLT/Xquey Expression Editor. Is there any way to add the customised xquery to this list, so that it can be dragged and dropped later?
Thanks,
Balaji.

I doubt if that is exposed out side of Oracle Engineering (Not public/documented). Please raise a support ticket for enhancement. If PM should concur you might get the steps that need to be performed for this feature.
Thanks
Manoj
Edited by: Manoj Neelapu on Jun 8, 2010 8:37 AM

Xquery function in pl sql

Hi all.
Is some body know can XQuery functions be used/declared in pl sql? More deep, can I cover XQuery function by pl sql function or procedure? And how to input parameters/variables to Xquery function from pl sql?
Any links to manual will be helpful.
Best regards,
Anton.

Something like that?:
SQL> create or replace procedure index_scan (index_name varchar2, name varchar2)
as
   xml   xmltype;
begin
   select xmlquery (
if ("article-by-title" = $index_name) then doc("/wiki")/root/page[title=$name]
else if ("article-by-id" = $index_name) then doc("/wiki")/root/page[id=$name]
else if ("link-by-target" = $index_name) then doc("/wiki")/root/page/links/link[@target = $name]
else if ("article-by-cat" = $index_name) then doc("/wiki")/root/page/catlinks/catlink[@target=$name]
else error(fn:QName("http://www.w3.org/2005/xqt-errors", $index_name) , "Some error occured") '
             passing index_name as "index_name", name as "name"
             returning content)
     into xml
     from dual;
end index_scan;
Procedure created.
SQL> exec index_scan('My Index Name','My Name')
BEGIN index_scan('My Index Name','My Name'); END;
Error at line 20
ORA-19112: error raised during evaluation: :My Index Name
Detail: Some error occured
ORA-06512: at "MICHAEL.INDEX_SCAN", line 5
ORA-06512: at line 1Don't have your resources - therefore the error!

Documentation for XQuery Functions?

I have been looking for more information on the Aqualogic specific XQuery functions but have so far come up short. In particular I want to know the details for fn-bea:uuid(). I would like to be able to generate a unique identifier to use for correlating messages that come through ALSB in my log. Is there somewhere that I can find a description of what this function does?

WaltK wrote:
Where do I find documentation for APEX provided javascript functions such as addRow();?
addRow is undocumented.
Documented JavaScript methods are described in the API Reference, other documentation for the current version is located on the APEX Documentation page. Documentation for previous versions is located in the documentation archive.

OSB: Calling XQuery from XQuery function

Hi,
In OSB, is it possible to call XQuery functions from an XQuery. I have a number of XQuery files (.xq) and I want to call them from another xquery file, is that possible. I tried calling directly but it didn't work. Is there a way?
Thank you
Matt

Matt,
To use custom XPATH/XQuery functions, you need to register them into OSB runtime. Please refer -
http://docs.oracle.com/cd/E21764_01/doc.1111/e15866/custom_xpath.htm#OSBDV1725
http://eelzinga.wordpress.com/2010/05/10/oracle-service-bus-11g-using-custom-xpath-functions/
Regards,
Anuj

Retrieving Principal Name (=User Id) via XQuery Function

I'm using a custom identity asserter within my WLS to create the security context.
The OSB documentation states, that there is a XQuery function to read the user id from the security context: fn-bea:userid (see XQuery Implementation - 11g Release 1 (11.1.1.7)). Note: I have noticed that Oracle makes a distinction between Function Extensions from Oracle Service Bus and Supported Function Extensions from Oracle a.k.a Oracle’s XQuery Implementation).
When using this XPath function in my OSB installation I receive the following error: {bea-err}SYS001: This functionality has not been implemented (sorry) operator [QName {http://www.bea.com/xquery/xquery-functions}userid]
My questions:
- Is this the correct function to read the user id/user name/principal information from the security context?
- If it is, how can I make that function run in my OSB Domain? Is there a component I need to include/reference?
- If not, what other options do I have? What is best practice? (e.g. Java Callout & accessing the HttpServletRequest object via Java?)
Many thanks in advance.

In OSB you can use fn-bea:lookupBasicCredentials($arg-string) function for the same.
Here is the referece: XQuery Implementation - 11g Release 1 (11.1.1.6.3)

How I can create new XQuery functions in AQSB?

Hi,
I need create XQuery functions in AQSB to use them in proxy services. Is that posible?
Thanks for your help!!! :-)

Hi,
Have you activated the IC in the last dialog box of the wizard. Expand the root Account and see if you were able to see your sample BC. If you found that check the box and it will be available in the IC.
Regards,
Joseph

Using xsl document function in transform xsl

I'm trying to use an external xml document in an xsl transform that's used in a Transform activity in an 11g BPEL process:
<xsl:variable name="plants" select="document('plantTransposeLookup.xml')/plants"/>
I need to load up the document to use it in a lookup to get replacement values for a key.
This works fine in JDev, but not when I deploy it to the server.
The error I get when I run it is:
The XPath expression failed to execute; the reason was: javax.xml.transform.TransformerException: XML-22021: (Error) Error parsing external document: 'no protocol: plantTransposeLookup.xml'.. Check the detailed root cause described in the exception message text and verify that the XPath query is correct.
I've also gotten:
The XPath expression failed to execute; the reason was: javax.xml.transform.TransformerException: XML-22021: (Error) Error parsing external document: 'Unsupported feature: 'document(''), when stylesheet built using InputStream, Reader'.
I've also tried using the ora:doc function:
<xsl:variable name="plants" select="ora:doc('plantTransposeLookup.xml', 'plants')"/>
......but this doesn't work in JDev and is also erroring off on the server with:
The XPath expression failed to execute; the reason was: javax.xml.transform.TransformerException: XML-22016: (Error) Extension function namespace should start with 'http://www.oracle.com/XSL/Transform/java/'.. Check the detailed root cause described in the exception message text and verify that the XPath query is correct.
Does anyone know how to actually import an xml doc into a mapper??? I must be doing something stupid.
Thanks for any help.

In OSB, document() function needs absolute path of the XML file. So if you want to access the XML document for lookup, you need to put the XML file on the server itself and use the path of the XML file.
Although this is not a correct approach for managing lookups in OSB. The resource of XML Document type are not to be used for such use cases. What you can do is create a XQuery which can server as DVM.
Here is an example on how to use DVMs in OSB:
https://blogs.oracle.com/christomkins/entry/domain_value_maps_in_oracle_se
If you dont want to use XQuery and want to rely only on XSLT, then within the same XSLT document create a separate template which can store all the lookup data.

Getting error while using user-defined function in transform activity

Hi
I designed one user-defined function to add 2 nos following the
link:http://docs.oracle.com/cd/E16764_01/integration.1111/e10224/bp_xslt_mpr.htm .
Under this i followed the portion creating user-defined function.
After deploying,i'm getting an error stating:"<summary>
An error occurs while processing the XPath expression; the expression is ora:doXSLTransformForDoc("xsl/Transformation_1.xsl", $inputVariable.payload).
</summary>
<detail>
XPath expression failed to execute.
An error occurs while processing the XPath expression; the expression is ora:doXSLTransformForDoc("xsl/Transformation_1.xsl", $inputVariable.payload).
The XPath expression failed to execute; the reason was: javax.xml.transform.TransformerException: oramds:/deployed-composites/PO/HelloWorld_rev1.0/xsl/Transformation_1.xsl<Line 6, Column 104>: XML-22045: (Error) Extension function error: Class not found '
Missing class: addition.add
can anybody help me in this regard
Thanks
Avinash

Did you copy the jar file of your java classes to MIDDLEWARE_Home/user_projects/domains/soa_domain/lib?
http://georgie-soablog.blogspot.com/2010/06/soasuite-11g-implement-user-defined.html
hope this helps

Passing a node to Xquery function

Hi All,
I have two functions in my xquery. I'm trying to pass a node from one function to another function to check if it exists and do some processing on the text that is present in that node (if exists).
declare function appendLines($node as element()) as xs:string {
     if(fn:exists($node) and $node/text() ne "") then
          fn:concat($node/text(),", ")
     else (
appendLines($LINE_ITEM/ns0:STATXT)
Is the above call to that function is correct?
Thanks!!!

declare function appendLines($node as node()*) as xs:string {
          if(fn:exists($node)) then
               if(fn:string-length(fn:normalize-space($node/text())) > 0) then (
                    fn:concat($node/text(), " ")
               else (
          else (
It worked with the above function.

Recursive XQuery functions in transformation

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