clonesubtree2.html

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<TITLE>Copying a Subtree of Nodes from One DOM Document to Another
(Java Developers Almanac Example)
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  <h3>
    e526.  
    Copying a Subtree of Nodes from One DOM Document to Another</h3>

When copying a subtree of nodes from one document to another, cloning
the subtree and then inserting it into the other document will result
in a <font color="#0066ff"><i>wrong document</i></font> exception.  The subtree of nodes must be
<font color="#0066ff"><i>imported</i></font> into the other document using <code>importNode()</code>.


<pre>
    // Obtain an element in one document; the following method is implemented in
    // <a href="../javax.xml.parsers/BasicDom.html" class="eglink"><font size="-1"><b>e510</b> The Quintessential Program to Create a DOM Document from an XML File</font></a>
    Document doc1 = <font color="#0066ff"><i>parseXmlFile</i></font>(<font color="#0066ff"><i>"infilename1.xml"</i></font>, <font color="#0066ff"><i>false</i></font>);
    NodeList list = doc1.getElementsByTagName(<font color="#0066ff"><i>"entry"</i></font>);
    Element element = (Element)list.item(0);
    
    // Create another document
    Document doc2 = <font color="#0066ff"><i>parseXmlFile</i></font>(<font color="#0066ff"><i>"infilename2.xml"</i></font>, <font color="#0066ff"><i>false</i></font>);
    
    // Make a copy of the element subtree suitable for inserting into doc2
    Node dup = doc2.importNode(element, true);
    
    // Insert the copy into doc2
    doc2.getDocumentElement().appendChild(dup);
</pre>
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            &nbsp;Related Examples
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e524. <a class="eglink" href="WalkDom.html?l=rel">
    Visiting All the Nodes in a DOM Document
</a>
<br>

e525. <a class="eglink" href="CloneSubtree.html?l=rel">
    Copying a Subtree of Nodes in a DOM Document
</a>
<br>


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        See also: 
<a class="eglink" href="/egs/org.w3c.dom/pkg.html?l=rel#Adding%20and%20Removing%20Nodes">
    Adding and Removing Nodes
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/org.w3c.dom/pkg.html?l=rel#Element%20Attributes">
    Element Attributes
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/org.w3c.dom/pkg.html?l=rel#Elements">
    Elements
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/org.w3c.dom/pkg.html?l=rel#Getting%20Nodes">
    Getting Nodes
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/org.w3c.dom/pkg.html?l=rel#Text%20Nodes">
    Text Nodes
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/org.w3c.dom/pkg.html?l=rel#XPath">
    XPath
</a>&nbsp;&nbsp;

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