Using XPath expressions

Hi,
Currently, the support for queries in the standalone version of XmlBeans is
somewhat limited. However, is there a sensible way to query the XML
directly and then map the results back to XmlObjects? Presumably this is
what happens at some level anyway. For example, a DOM node could easily be
obtained from the relevant XmlObject and passed to the selectNodeList()
method of the org.apache.xpath.XPathAPI class. This would return a
org.w3c.dom.NodeList object. The question would then be how to map the DOM
nodes in the NodeList back to the corresponding XmlObjects in the object
model. Presumably, there wouldn't be any equivalence between the Nodes in
the NodeList and the Nodes returned by the newDomNode() method in XmlObject?
Would this also be possible by querying an XmlCursor?
Steve

Similar Messages

Using xpath expressions in Document-Builder

Hi all
we have re-designed our (existing) DDX-templates with the Document Builder in LC Workbench. The DDX templates are used to assemble PDFs with LC Assembler-Service.
Now my question: Is it still possible to use XPath-expression in the DDX template? Please find our example below:
The XPath expression works only if we copy&paste the DDX source code directly to the Assembler-Service property view (picture below). But referring the DDX-template doens't interpret the xpath path at run time (2nd picture below). Any help on that will be appreciated!
Works (using DDX source code directly):
Doesn't work (using DDX template):

Hi,
>
I tried to get a portion of an XML by using XPath Expressions as follows:
String xPathExpression =
"declare namespace xq='http://inti.notariado.org/indices' " +
"$this/xq:RULES/xq:RULE[@disabled]";
I think any XPath expressions which use [] are not supported in stand alone
version, but as this is not documented I could be wrong.
Regards
Arek

Help Page Error: Using XPath expressions as list indexes and map keys

The help page says for maps to use the XPath expression
/process_data/mapvar[@id='/process_data/@stringvar']
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thanks a lot for your help..
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OWSM - Signing element using XPATH Expression

Hi,
We have a requirement to sign an element within outgoing body of xml message. We are trying to use the policy pipeline to sign.
Signed Content: XPATH
sign XPATH Expression: referencing the element required to be signed.
We get the error: WS-Security process failure:There are no parts of the message to sign
The error message indicates that the XPATH query is not correct. Does anyone know of a source of documentation for this where we can get examples. Tried google, forums...etc with no success. Any help would be really appreciated.
Thanks

Hi,
Managed to sort it, found the following link.
http://download-uk.oracle.com/docs/cd/B31017_01/integrate.1013/b31008/toc.htm
Thanks

Using xpath-expressions inside Task Instructions

Hi all,
I have a process where I would like to build up the task Instructions in a string variable. However I cannot seem to resolve xpath values when I am putting my string as the task instruction.
How can I do this?
Thanks in advance
Sincerely
Kim Christensen

Hi again Marcel - thanks for your quick reply
However I am not sure I und erstand your answer correctly.
I have a string variable (str_Inctructions) that I want to set as my Task Instruction.
So at a point in my process I create a set value with an expression like this:
str_Instructions = 'Here are some instructions for {$/process_data/myOtherVar$} please follow them.'
I then set str_Instructions as the Task Instructions (an xpath-expression). When I get the Task in Workspace I see the {$/process_data/myOthervariable$} instead of the value of myOtherVar.
So how can I get the value of myOtherVar?

Displaying XML using XPath expressions

Hi. I have a XML file which looks something like this:
<?xml version="1.0"?>
<SAQ>
<question id="1">
What does UML stand for?
<answer id="1" correct="yes">
Unified Modelling Language
<explanation>
Explanation
</explanation>
</answer>
<answer id="2" correct="no">
United Modelling Language
<explanation>
Wrong
</explanation>
</answer>
</question>
I want to just display the Question, not the child Answer and Explantion nodes under it, but when I use:
<c:set var="temp" value="1" />
<x:out select="$doc//SAQ//question[@id = $temp]" />
it displays:
What does UML stand for? Unified Modelling Language Explanation United Modelling Language Wrong
How do I just display the parent question node and not its child answer and explanation nodes?
Thanks!

use the text() xpath function it should work:
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XPath expressions in XmlCursor / XmlObjects

Hi all,
I tried to get a portion of an XML by using XPath Expressions as follows:
String xPathExpression =
"declare namespace xq='http://inti.notariado.org/indices' " +
"$this/xq:RULES/xq:RULE[@disabled]";
A simple example of an xml
<rules>
<rule disabled="true">hello</rule>
<rule>hello</rule>
</rules>
It should return one node, but actually it returns nothing. If I use another one:
String xPathExpression =
"declare namespace xq='http://inti.notariado.org/indices' " +
"$this/xq:RULES/xq:RULE";
Then I get two nodes (which is correct). It seems to me a bug or a partial support
for XPath expressions. Or maybe I am using a bad syntax, anyone can help?
Thanks in advance !

Hi,
>
I tried to get a portion of an XML by using XPath Expressions as follows:
String xPathExpression =
"declare namespace xq='http://inti.notariado.org/indices' " +
"$this/xq:RULES/xq:RULE[@disabled]";
I think any XPath expressions which use [] are not supported in stand alone
version, but as this is not documented I could be wrong.
Regards
Arek

How to use XPath in the adapter framework

I am creating a XI adapter to our system.
In the adapter I want to use XPath expression.
I use the classes from javax.xml.xpath.*
This way does not work in the XI application server. (Java 1.4.2)
What is the correct way? Which packages/classes must be used?
Miklos

Hi Miklos,
The package javax.xml.xpath was introduced with Java 5 (1.5), thus it is not available in XI which runs Java 1.4.2. There are (at least) a couple of ways to use XPath in Java 1.4:
1. Use a third-party library that supports XPath, for instance Xalan-J from Apache.
2. Embed your XPath expression in an XSLT transformation, execute the transformation using classes from the javax.xml.tranform... packages (which <i>are</i> part 1.4) and extract the result.
Cheers,
Thorsten

C++ sample code using XPATH

Need to navigate an XML and extract xml nodes using XPATH expressions in C++ Application.
Please send us a C++ code sample using Oracle 9.2.0.3 XPATH API functions to extract an XML using XPATH expression.
Thanks
Shiva

Hi,
Where i can find this path "$XDK_HOME\xdk\demo\c\xslt"
thanks in advance
shashi.

Oracle OES: Possible to use XPath wildcards in OES authorization policies?

Hi,
I have policies to authorize WS-requests using OES through OWSM.
In the OES policies I retrieve attributes from the WS-request using XPath expressions.
When I use namespace in my XPath it all works well:
NAMESPACE tns=http://myns/
myAttr //tns:myVal
But I have several WS-requests that have different namespaces, but that i need to authorize using the same policy, so I would like to use a wildcard for the namespace. But when I try the attribute retriever doesn't find the node value:
myAttr //*:myVal
When i use tools to check the XPath, like SoapUI, I am able to get the node value using the expression above.
Does anyone have experience using XPath wildcards in OES policies?
-T

I understand that the LDAP structure design depends on the business goals and requirements and we are defnitely building the schema in that lines. But the thing we want to make sure is how flexible are the products like OIM, OAM and OES to provide user authentication(if the user is deep down in the tree), authorization (if the user needs to be authorized to services having attributes deep down in the tree), mapping complex relationships and permissions in conjunction with OID.
I think the other way of asking this question would be what we should take into consideration while designing the LDAP structure in OID as the backend LDAP store and what things we should leave whille designing LDAP structure in OID that could be considered while designing the authentication, authorization process in OIM, OAM and OES.
Our goal is to keep the LDAP structure simple and flexible but at the sametime use OAM, OES and OIM at their best capabilities to serve our purpose without lot of customizations required.
Thanks!

Cannot use bpws:getVariableData in dynamic assignment using xpath

Hello,
I'm trying to use dynamic task assignment using xpath expression. I have a BPEL variable (collection) that holds a list of users.
Under task assignment I set the following expression (data type- by expression):
bpws:getVariableData('Invoke1_get_usersSelect_OutputVariable','TestApprovalCollection','/ns5:TestApprovalCollection/ns5:TestApproval')
But when i run the process i get this error :
Function 'getVariableData' not found
Your help is appreciated.
Regards,

Make sure you have this entry in your bpel.
xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"

Using XPath for associatios into BPMN process??

Hello everybody:
I'm using Oracle SOA and BPM Suite 11.1.1.5
I have a BPMN process that have an entry variable of type CBEFF_BIR_Type (the xml declaration is shown below)
<xsd:complexType name="CBEFF_BIR_Type">
                 <xsd:sequence>
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                    <xsd:element name="FormatType" type="xsd:positiveInteger" minOccurs="1" maxOccurs="1"/>
                    <xsd:element name="BIR_Information" minOccurs="0" maxOccurs="1">
                        <xsd:complexType>
                            <xsd:sequence>
                                <xsd:element name="BIR_Info" type="iso-iec19785-3-7:BIRInfoType" minOccurs="0"
                                     maxOccurs="1"/>
                                <xsd:element name="BDB_Info" type="iso-iec19785-3-7:BDBInfoType" minOccurs="0"
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                                <xsd:element name="SB_Info" type="iso-iec19785-3-7:SBInfoType" minOccurs="0"
                                     maxOccurs="1"/>
                            </xsd:sequence>
                        </xsd:complexType>
                    </xsd:element>
                    *<xsd:element name="BIR" type="tns:BaseBIRType"/>*
                </xsd:sequence>
            </xsd:complexType>* BaseBIRType xml declaration*
<xsd:complexType name="BaseBIRType"/>According to the business logic that BIR sould contain a node of type URI_BIR or BinaryBIR (xml declaration is shown below), it will never a self BaseBIRType.
<xsd:complexType name="URI_BIR">
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                    *<xsd:extension base="tns:BaseBIRType">*
                        <xsd:sequence>
                            <xsd:element name="URI" type="xsd:anyURI"/>
                        </xsd:sequence>
                    </xsd:extension>
                </xsd:complexContent>
            </xsd:complexType>
<xsd:complexType name="BinaryBIR">
                <xsd:complexContent>
                    *<xsd:extension base="tns:BaseBIRType">*
                        <xsd:sequence>
                            <xsd:element name="Binary" type="xsd:base64Binary"/>
                        </xsd:sequence>
                    </xsd:extension>
                </xsd:complexContent>
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Inside my process I need to know what kind of node is coming inside de BIR (URI or Binary) to copy it to the correct variable type. I've tryed using the XPath Expessions provided by the IDE (+ora:instanceOf(XpathExpression, QName)+) but I had no results.
Please someone who can guide me?, I'll appreciate any help. I'm new in XPath.
Regards,
isabelbernely

As I see it you should use transformations not associations in such case. Within transformation (xslt) you should use XPath expression to test which of the concrete instance of the base type you are dealing with and proceed accordingly. That's bit ugly (depending on actual subelements to distinguish types) so there are two alternatives:
1. use xsi:type in xml instance - an attribute which will directly indicate the type of the element (many java xml binding frameworks can output such attribute while marshalling types to xml)
2. remodel your xsd to use substitution groups - the construct is similar but due to nature of substitution groups each concrete type will have a separate named element - easy to distinguish later in transformation

Using the variable placeholder ? in an XPath expression

I'm trying to using the variable operator (?) in an Oracle prepared statement used in a query where clause. Here is the query:
select xt.APPLICATION_NAME, xt.VERSION, xt.EVENT_TYPE, xt.SENDING_SITE, xt.RECEIVING_SITE, xt.EVENT_ID
      from AUDITED_EVENT_XML_MIN e,
         XMLTable(XMLNAMESPACES('http://gov/va/med/datasharing/audit/endpoint/audit' AS "xae"),
                '/xae:auditable-event'
                PASSING e.xml_event_content
                COLUMNS
                APPLICATION_NAME VARCHAR2(255) PATH 'xae:application-name',
                VERSION          VARCHAR2(255) PATH 'xae:version',
                EVENT_TYPE       VARCHAR2(255) PATH 'xae:event-type',
                SENDING_SITE     VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.4/HD.2',
                RECEIVING_SITE   VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.6/HD.2',
                EVENT_ID         VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.10') xt
            where existsNode(E.XML_EVENT_CONTENT, '/xae:auditable-event[xae:event-type=?]','xmlns:xae="http://gov/va/med/datasharing/audit/endpoint/audit"') = 1This code works when the ? is replaced with "aValue". I need to use the ? so that my Java client can pass a variable value into the query.
Is this a supportable feature or am I doing something wrong?
I didn't see any examples in the Oracle XML DB Developers Guide where there was a ? in an XPath expression.
I also tried "?" with the same issue...
Here is the version info:
SQL*Plus: Release 11.1.0.6.0 - Production on Mon Sep 10 18:41:55 2012
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing optionsAny assistance would be greatly appreciated.
Thanks in advance...
Edited by: flyeagle5683 on Sep 10, 2012 5:49 PM

select xt.APPLICATION_NAME, xt.VERSION, xt.EVENT_TYPE, xt.SENDING_SITE, xt.RECEIVING_SITE, xt.EVENT_ID
      from AUDITED_EVENT_XML_MIN e,
         XMLTable(XMLNAMESPACES('http://gov/va/med/datasharing/audit/endpoint/audit' AS "xae"),
                '/xae:auditable-event'
                PASSING e.xml_event_content
                COLUMNS
                APPLICATION_NAME VARCHAR2(255) PATH 'xae:application-name',
                VERSION          VARCHAR2(255) PATH 'xae:version',
                EVENT_TYPE       VARCHAR2(255) PATH 'xae:event-type',
                SENDING_SITE     VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.4/HD.2',
                RECEIVING_SITE   VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.6/HD.2',
                EVENT_ID         VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.10') xt
            where XMLEXISTS(
                       'declarre namespace xae ="http://gov/va/med/datasharing/audit/endpoint/audit"; (: :)
                        $XML/xae:auditable-event[xae:event-type=$VALUE]'
                        passing e.xml_event_content as "XML",
                                  :1 as "VALUE"
            ) or you can do
select xt.APPLICATION_NAME, xt.VERSION, xt.EVENT_TYPE, xt.SENDING_SITE, xt.RECEIVING_SITE, xt.EVENT_ID
      from AUDITED_EVENT_XML_MIN e,
         XMLTable(XMLNAMESPACES('http://gov/va/med/datasharing/audit/endpoint/audit' AS "xae"),
                '/xae:auditable-event'
                PASSING e.xml_event_content
                COLUMNS
                APPLICATION_NAME VARCHAR2(255) PATH 'xae:application-name',
                VERSION          VARCHAR2(255) PATH 'xae:version',
                EVENT_TYPE       VARCHAR2(255) PATH 'xae:event-type',
                SENDING_SITE     VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.4/HD.2',
                RECEIVING_SITE   VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.6/HD.2',
                EVENT_ID         VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.10') xt
      WHERE EVENT_TYPE = :1Edited by: mdrake on Sep 10, 2012 7:23 PM
Edited by: mdrake on Sep 10, 2012 7:24 PM

Using the variable ? operator in an XPath Expression

I'm trying to using the variable operator (?) in an Oracle prepared statement used in a query where clause. Here is the query:
select xt.APPLICATION_NAME, xt.VERSION, xt.EVENT_TYPE, xt.SENDING_SITE, xt.RECEIVING_SITE, xt.EVENT_ID
      from AUDITED_EVENT_XML_MIN e,
         XMLTable(XMLNAMESPACES('http://gov/va/med/datasharing/audit/endpoint/audit' AS "xae"),
                '/xae:auditable-event'
                PASSING e.xml_event_content
                COLUMNS
                APPLICATION_NAME VARCHAR2(255) PATH 'xae:application-name',
                VERSION          VARCHAR2(255) PATH 'xae:version',
                EVENT_TYPE       VARCHAR2(255) PATH 'xae:event-type',
                SENDING_SITE     VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.4/HD.2',
                RECEIVING_SITE   VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.6/HD.2',
                EVENT_ID         VARCHAR2(255) PATH 'xae:xml-event-content/*/MSH/MSH.10') xt
            where existsNode(E.XML_EVENT_CONTENT, '/xae:auditable-event[xae:event-type=?]','xmlns:xae="http://gov/va/med/datasharing/audit/endpoint/audit"') = 1This code works when the ? is replaced with "aValue". I need to use the ? so that my Java client can pass a variable value into the query.
Is this a supportable feature or am I doing something wrong?
I didn't see any examples in the Oracle XML DB Developers Guide where there was a ? in an XPath expression.
I also tried "?" with the same issue...
Here is the version info:
SQL*Plus: Release 11.1.0.6.0 - Production on Mon Sep 10 18:41:55 2012
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing optionsAny assistance would be greatly appreciated.
Thanks in advance...

I incorporated this suggestion and it worked very well. Thanks!
Now I have converted my solution to use a structured index. As such, I want to write the where clauses in terms of column names rather than XPath expressions.
I hoped it was as simple as changing the code that generates the XPath expression to generate a SQL expression. After making that change, I'm now getting this error:
Caused by: java.sql.SQLSyntaxErrorException: ORA-00920: invalid relational operator
     at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:91)
     at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:112)
     at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:173)
     at oracle.jdbc.driver.T2CConnection.checkError(T2CConnection.java:686)
     at oracle.jdbc.driver.T2CConnection.checkError(T2CConnection.java:617)
     at oracle.jdbc.driver.T2CPreparedStatement.executeForDescribe(T2CPreparedStatement.java:559)
     at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1077)
     at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1186)
     at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3381)
     at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3425)
     at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1490)
     at gov.va.med.datasharing.audit.dao.jdbc.runner.MapQueryRunner.run(MapQueryRunner.java:47)
     at gov.va.med.datasharing.audit.web.dao.jdbc.AuditableEventsQueryDAOImpl.getAuditableEventsByDate(AuditableEventsQueryDAOImpl.java:150)It seemed to me that if it worked for the XPath expression that it should also work for the SQL expression.
The static SQL is:
SELECT PK_ID, EVENT_TYPE, OUTCOME, SENDING_SITE, RECEIVING_SITE, CREATED_TIME, EVENT_ID, PATIENT_ID FROM
(SELECT rownum as rn, PK_ID, EVENT_TYPE, OUTCOME, SENDING_SITE, RECEIVING_SITE, CREATED_TIME, EVENT_ID, PATIENT_ID FROM
     (SELECT aet.AUDITABLE_EVENT_XML_PK_ID AS PK_ID, xt.EVENT_TYPE, xt.OUTCOME, xt.SENDING_SITE, xt.RECEIVING_SITE, aet.CREATED_TIME as CREATED_TIME, xt.EVENT_ID, xt.PATIENT_ID
        FROM AUDITABLE_EVENT_XML aet,
          XMLTable(XMLNAMESPACES('http://gov/va/med/datasharing/audit/endpoint/audit' AS "xae"),
            '/xae:auditable-event'
            PASSING aet.xml_event_content
            COLUMNS
            EVENT_TYPE       VARCHAR2(255) PATH 'xae:event-type',
            SENDING_SITE     VARCHAR2(255) PATH 'xae:sending-site',
            RECEIVING_SITE   VARCHAR2(255) PATH 'xae:receiving-site',
            EVENT_ID         VARCHAR2(255) PATH 'xae:event-id',
            PATIENT_ID           VARCHAR2(255) PATH 'xae:patient-id',
            OUTCOME                VARCHAR2(255) PATH 'xae:outcome') xt
        WHERE aet.CREATED_TIME BETWEEN ? AND ?
             AND ?
      ) ORDER BY CREATED_TIME desc
    ) WHERE rn > ? and rn <= ?So I'm thinking that Oracle must perform strong checking in SQL, not allowing the '=' operator to be substituted. If I run this query in Toad, replacing the ? with the SQL, it runs fine...
Can someone tell me whether or not this is a legal substitution?
The SQL that runs in Toad is:
SELECT PK_ID, EVENT_TYPE, OUTCOME, SENDING_SITE, RECEIVING_SITE, CREATED_TIME, EVENT_ID, PATIENT_ID FROM
(SELECT rownum as rn, PK_ID, EVENT_TYPE, OUTCOME, SENDING_SITE, RECEIVING_SITE, CREATED_TIME, EVENT_ID, PATIENT_ID FROM
     (SELECT aet.AUDITABLE_EVENT_XML_PK_ID AS PK_ID, xt.EVENT_TYPE, xt.OUTCOME, xt.SENDING_SITE, xt.RECEIVING_SITE, aet.CREATED_TIME as CREATED_TIME, xt.EVENT_ID, xt.PATIENT_ID
        FROM AUDITABLE_EVENT_XML aet,
          XMLTable(XMLNAMESPACES('http://gov/va/med/datasharing/audit/endpoint/audit' AS "xae"),
            '/xae:auditable-event'
            PASSING aet.xml_event_content
            COLUMNS
            EVENT_TYPE       VARCHAR2(255) PATH 'xae:event-type',
            SENDING_SITE     VARCHAR2(255) PATH 'xae:sending-site',
            RECEIVING_SITE   VARCHAR2(255) PATH 'xae:receiving-site',
            EVENT_ID         VARCHAR2(255) PATH 'xae:event-id',
            PATIENT_ID         VARCHAR2(255) PATH 'xae:patient-id',
            OUTCOME             VARCHAR2(255) PATH 'xae:outcome') xt
        WHERE aet.CREATED_TIME BETWEEN TO_DATE ('9/19/2011 12:00:01 AM','MM/DD/YYYY HH:MI:SS PM')
                                     AND TO_DATE ('12/20/2012 12:00:00 AM','MM/DD/YYYY HH:MI:SS PM')
            AND (OUTCOME=0 or OUTCOME=1)
      ) ORDER BY CREATED_TIME desc
    ) WHERE rn > 0 and rn <= 5;Any assistance will be appreciated,
Thanks in advance.

Using substring in the XPATH expression for Receiver Determination

Hello, I need a little help please. In my receiver determination, I have a condition and I need to do a "not like" check. Basically, if the first three positions of the source field does not start with a specific code, then I need to execute the condition. The condition editor does not support a "not like" operand, so I went to the XPATH expression editor. I tried to used the XPATH substring function to get the first three characters and then do a "not equal" operand, but it doesn't appear to work. There are not any runtime errors, but the condition is not executing. Any ideas on this? Does the XPATH expression support the substring function?

Hi Jesse,
Can you please explain what is the meaning of http:// in the statement
/p1:PRODUCT/MATNRhttp://not(substring(.,string-length(.) - 2) = '123')
Please explein, I am having same issue. It is not working here.In My case it is
/p1:ORDERS01/IDOC/E1EDP01/E1EDP19/IDTNR[http://not(starts-with(.,\"D\"))]
also tried with
/p1:ORDERS01/IDOC/E1EDP01/E1EDP19/IDTNR[http://not(starts-with(.,'D'))]
Thanks in advance!

Using XPath expressions

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