getentityref.html

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<TITLE>Getting the Value of an Entity Reference in a DOM Document
(Java Developers Almanac Example)
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  <h3>
    e530.  
    Getting the Value of an Entity Reference in a DOM Document</h3>

The value of an entity reference is kept in the child nodes of the
<code>EntityReference</code> node. This example demonstrates an entity reference
with three children.

<P>
Note: By default, a parser expands entity references while
constructing the DOM tree. See <a href="../javax.xml.parsers/ExpEntity.html" class="eglink"><font size="-1"><b>e516</b> Preventing Expansion of Entity References While Parsing an XML File</font></a>
to prevent expansion.


<pre>
    // Obtain a document; the following method is implemented in
    // <a href="../javax.xml.parsers/ExpEntity.html" class="eglink"><font size="-1"><b>e516</b> Preventing Expansion of Entity References While Parsing an XML File</font></a>
    Document doc = <font color="#0066ff"><i>parseXmlFileNoExpandER</i></font>(<font color="#0066ff"><i>"infilename.xml"</i></font>, <font color="#0066ff"><i>false</i></font>);
    
    // Get the entity reference (see input file)
    Element root = doc.getDocumentElement();
    EntityReference eref = (EntityReference)root.getFirstChild();
    
    // The first child of the entity reference is comment
    Comment comment = (Comment)eref.getFirstChild();               // comment
    
    // The second child of the entity reference is an element
    Element elem = (Element)eref.getFirstChild().getNextSibling(); // &lt;i&gt;
    
    // The third child of the entity reference is a text
    Text text = (Text)eref.getLastChild();                         // text
</pre>
This is the sample input for the example:

<pre>
    &lt;?xml version="1.0" encoding="UTF-8"?&gt;
    &lt;!DOCTYPE root [
        &lt;!ENTITY entity "&lt;!--comment--&gt;&lt;i/&gt;text"&gt;
    ]&gt;
    &lt;root&gt;&amp;entity;&lt;/root&gt;
</pre>
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            &nbsp;Related Examples
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e1071. <a class="eglink" href="GetRoot.html?l=rel">
    Getting the Root Element in a DOM Document
</a>
<br>

e527. <a class="eglink" href="GetNode.html?l=rel">
    Getting a Node Relative to Another Node in a DOM Document
</a>
<br>

e528. <a class="eglink" href="GetNote.html?l=rel">
    Getting the Notations in a DOM Document
</a>
<br>

e529. <a class="eglink" href="GetDecEntity.html?l=rel">
    Getting the Declared Entities 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#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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