Re: [dom4j-user] XPath result from a DOM and the Rest of DOM

David D. Lucas Mon, 18 Nov 2002 18:48:45 -0800

Are you just trying to filter the hierachy or find the elements?

Perhaps if you tell us more about what you need instead of trying to solve a piece of the puzzle we could help more. The first option I showed you is probably the one you should use and just create a new root element called Patient and add the nodes that come back from the select to it to fulfill your filtering.

Sorry I could not be of more help, but, XPath returns matching nodes. Unfortunately Patient is now seen as a peer to Age and Gender. Using "/*/*[local-name()!='ContactInfo']" will return the nodes under Patient.

Another option is to simply delete ContactInfo once it is found. Do a selectNodes on "/*/*[local-name()='ContactInfo']" and then remove the items by "detach()" so they no longer show up in the parent. Then the root element would no longer have ContactInfo as a child.

Try this out
//...
public static void main(String[] args) {
try {
System.out.println("starting main...");

SAXReader reader = new SAXReader();
Document document = reader.read(
new File("patient_records.xml" ));
Element root = document.getRootElement();

System.out.println("xml=\n"+root.asXML());
List contactInfoList = root.selectNodes("//ContactInfo");
Object array[] = contactInfoList.toArray();
Element item=null;
for (int i =0; i < array.length; i++ ){
item=(Element) array[i];
item.detach();
}
System.out.println("xml=\n"+root.asXML());
}
catch (Exception ex) {
ex.printStackTrace();
}
finally {
System.out.println("leaving main...");
}
}
//...

Not sure why, but the whitespace from the asXML on the root the second time seems to have some extra <CR> embedded. Anyone know why?

Best Wishes,
Dave

Pae Choi wrote:

Dave,

With the XPE tool(under the Matching Nodes tab), it returns as follows:


<Patient>
<Age>
<Gender>


Both with Xalan and Jaxen with DOM4J, it returns as follows:

<Patient>
    <Age>39</Age>
    <Gender>Female</Gender>
    <ContactInfo>
        <PhoneNumber>123-456-7890</PhoneNumber>
        <EmailAddress>[EMAIL PROTECTED]</EmailAddress>
    </ContactInfo>
</Patient>
<Age>39</Age>
<Gender>Female</Gender>

More comments? Thank you.

Regards,


Pae



----- Original Message -----
From: "David D. Lucas" <[EMAIL PROTECTED]>
To: "Pae Choi" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Monday, November 18, 2002 5:36 AM
Subject: Re: [dom4j-user] XPath result from a DOM and the Rest of DOM

So, what you really want is:
"//*[not( ancestor-or-self::ContactInfo ) ]"
Try that out and see what you get.

Enjoy!
Dave


Pae Choi wrote:

Dave,

It is partially working though, that was a nice XPath you gave. I
tested both Jaxen with DOM4J and XPE(seems like XPE also uses
Jaxen as well), the result was same as follows:

<Age>38</Age>
<Gender>Female</Gender>

It returns other sibing nodes excluding the <ContactInfo> element.
That's I wanted to see in that level, but I also need the other
elements, including their parent node, e.g., <Patient> element. To
wit, the result should be as follows:

<Patient>
   <Age>38</Age>
   <Gender>Female</Gender>
</Patient>

Any more comments? Thank you.

Regards,


Pae





----- Original Message -----
From: "David D. Lucas" <[EMAIL PROTECTED]>
To: "Pae Choi" <[EMAIL PROTECTED]>
Cc: "Benjamin Kopic" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Sunday, November 17, 2002 5:37 PM
Subject: Re: [dom4j-user] XPath result from a DOM and the Rest of DOM

Try the XPath syntax "/*/*[local-name()!='ContactInfo']" .
That should give you what you want.  I verified it with XPE, but have
not tried it on DOM4J.

Let me know if it works.  :-)
Later,
Dave


Pae Choi wrote:

Thank you for your reply as well as code snippet. But that's not

exactlly

what I was looking for.

My applogies if I did not explained well in my prevous message. The
code snippet in your message will be able to get the <ContactInfo>
subemelement fine. And I have no problem to getting that.

My question was to get the rest of XML DOM, excluding the prviously
selected sublelement, <ContactInfo>. To wit, I am looking for a simple
way to get the result without parsing the XML document by excluding
the previously selected subelement. The result I am expecting to get
is as follows:

Initial XML:
/<Patient>/
/    <Age>39</Age>///
/    <Gender>Female</Gender>///
/    <ContactInfo>///
/        <PhoneNumber>123-456-7890</PhoneNumber>///
/        <EmailAddress>[EMAIL PROTECTED]</EmailAddress>///
/    </ContactInfo>///
/</Patient>///
The result XML:
/<Patient>/
/    <Age>39</Age>///
/    <Gender>Female</Gender>///
/</Patient>///
Thank you.

Any more comments?

Regards,


Pae



  ----- Original Message -----
  *From:* Benjamin Kopic <mailto:[EMAIL PROTECTED]>
  *To:* Pae Choi <mailto:[EMAIL PROTECTED]>
  *Cc:* [EMAIL PROTECTED]
  <mailto:[EMAIL PROTECTED]>
  *Sent:* Sunday, November 17, 2002 4:07 AM
  *Subject:* Re: [dom4j-user] XPath result from a DOM and the Rest of

DOM

  If I understand you correctly, the following will return <Patient>
  element:


  SAXReader reader = new SAXReader();
  Document document = reader.read( new File(

"patient_records.xml" ) );

  Element contactInfo = document.selectSingleNode( "//ContactInfo",
  "." );
  Element patient = contactInfor.getParent();


  Then you can use the Node API to traverse the <Patient> element
  returned.

  Also, if <Patient> is the root element, then you can do the

following:

  SAXReader reader = new SAXReader();
  Document document = reader.read( new File(

"patient_records.xml" ) );

  Element patient = document.getRootElement();



  Best regards

  Ben


  On Sat, 2002-11-16 at 23:52, Pae Choi wrote:

      /Say we have an XML document as follows:///
      ////
      /<Patient>///
      /    <Age>39</Age>///
      /    <Gender>Female</Gender>///
      /    <ContactInfo>///
      /        <PhoneNumber>123-456-7890</PhoneNumber>///
      /        <EmailAddress>[EMAIL PROTECTED]</EmailAddress>///
      /    </ContactInfo>///
      /</Patient>///
      ////
      /And we use the XPath to only get the <ContactInfo>, e.g.,///
      /"//ContactInfo" which should get the result as follows;///
      ////
      /    <ContactInfo>///
      /        <PhoneNumber>123-456-7890</PhoneNumber>///
      /        <EmailAddress>[EMAIL PROTECTED]</EmailAddress>///
      /    </ContactInfo>///
      ////
      /My question is:///
      ////
      /[Q] Is there way to get the rest of XML document in a

simple///

      /      way. The rest of XML document should be as follows;///
      ////
      /<Patient>///
      /    <Age>39</Age>///
      /    <Gender>Female</Gender>///
      /</Patient>///
      ////
      /Any comments? Thank you.///
      ////
      /Regards,///
      ////
      ////
      /Pae///
      ////
      ////
      ////

--
benjamin kopic
m: +44 (0)780 154 7643
t: +44 (0)20 7794 3090
e: [EMAIL PROTECTED]
w: http://www.panContext.com/


--

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--

+------------------------------------------------------------+
| David Lucas                        mailto:[EMAIL PROTECTED]  |
| Lucas Software Engineering, Inc.   (740) 964-6248 Voice    |
| Unix,Java,C++,CORBA,XML,EJB        (614) 668-4020 Mobile   |
| Middleware,Frameworks              (888) 866-4728 Fax/Msg  |
+------------------------------------------------------------+
| GPS Location:  40.0150 deg Lat,  -82.6378 deg Long         |
| IMHC: "Jesus Christ is the way, the truth, and the life."  |
| IMHC: "I know where I am; I know where I'm going."    <><  |
+------------------------------------------------------------+

Notes: PGP Key Block=http://www.lse.com/~ddlucas/pgpblock.txt
IMHO="in my humble opinion" IMHC="in my humble conviction"
All trademarks above are those of their respective owners.




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+------------------------------------------------------------+
| David Lucas mailto:[EMAIL PROTECTED] |
| Lucas Software Engineering, Inc. (740) 964-6248 Voice |
| Unix,Java,C++,CORBA,XML,EJB (614) 668-4020 Mobile |
| Middleware,Frameworks (888) 866-4728 Fax/Msg |
+------------------------------------------------------------+
| GPS Location: 40.0150 deg Lat, -82.6378 deg Long |
| IMHC: "Jesus Christ is the way, the truth, and the life." |
| IMHC: "I know where I am; I know where I'm going." <>< |
+------------------------------------------------------------+

Notes: PGP Key Block=http://www.lse.com/~ddlucas/pgpblock.txt
IMHO="in my humble opinion" IMHC="in my humble conviction"
All trademarks above are those of their respective owners.

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Re: [dom4j-user] XPath result from a DOM and the Rest of DOM

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