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)"/>

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         <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 $link
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              return
              <c:column id="{$col/@id}">
                   <c:label>{data($es/t:entry[@xpath eq concat($x, "/column[@id=", $col/@id, "]/label")]/t:translation)}</c:label>
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              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, "]"))
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         for $p in $c/c:product
         return local:p($p, concat("/product[@id=", $p/@id, "]"))
    </c:productFamiles>
    Message was edited by:
    John Lee

    John
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    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  <!-- edited with XMLSpy v2005 rel. 3 U (http://www.altova.com) by  () -->
      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  <!-- edited with XMLSpy v2008 (http://www.altova.com) by Jan-Erik Pedersen (HEWLETT PACKARD) -->
      5  <!--W3C Schema generated by XMLSpy v2007 (http://www.altova.com) by Scott Dismukes (Hewlett Packard)-->
      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>

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