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<article class="content wrap" id="_content" data-uid="Sax.IDTDHandler">
<h1 id="Sax_IDTDHandler" data-uid="Sax.IDTDHandler" class="text-break">Interface IDTDHandler
</h1>
<div class="markdown level0 summary"><p>Receive notification of basic DTD-related events.</p>
</div>
<div class="markdown level0 conceptual"></div>
<h6><strong>Namespace</strong>: <a class="xref" href="Sax.html">Sax</a></h6>
<h6><strong>Assembly</strong>: Lucene.Net.Benchmark.dll</h6>
<h5 id="Sax_IDTDHandler_syntax">Syntax</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public interface IDTDHandler</code></pre>
</div>
<h5 id="Sax_IDTDHandler_remarks"><strong>Remarks</strong></h5>
<div class="markdown level0 remarks"><p><em>This module, both source code and documentation, is in the
Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
See <a href="http://www.saxproject.org">http://www.saxproject.org</a>
for further information.
<p>
If a SAX application needs information about notations and
unparsed entities, then the application implements this
interface and registers an instance with the SAX parser using
the parser&apos;s setDTDHandler method. The parser uses the
instance to report notation and unparsed entity declarations to
the application.
<p>
Note that this interface includes only those DTD events that
the XML recommendation<em>requires</em> processors to report:
notation and unparsed entity declarations.
<p>
The SAX parser may report these events in any order, regardless
of the order in which the notations and unparsed entities were
declared; however, all DTD events must be reported after the
document handler&apos;s startDocument event, and before the first
startElement event.
(If the <a class="xref" href="Sax.Ext.ILexicalHandler.html">ILexicalHandler</a> is
used, these events must also be reported before the endDTD event.)
<p>
It is up to the application to store the information for
future use(perhaps in a hash table or object tree).
If the application encounters attributes of type &quot;NOTATION&quot;,
&quot;ENTITY&quot;, or &quot;ENTITIES&quot;, it can use the information that it
obtained through this interface to find the entity and/or
notation corresponding with the attribute value.</p>
</div>
<h3 id="methods">Methods
</h3>
<span class="small pull-right mobile-hide">
<span class="divider">|</span>
<a href="https://github.com/apache/lucenenet/new/docs/4.8.0-beta00010/websites/apidocs/apiSpec/new?filename=Sax_IDTDHandler_NotationDecl_System_String_System_String_System_String_.md&amp;value=---%0Auid%3A%20Sax.IDTDHandler.NotationDecl(System.String%2CSystem.String%2CSystem.String)%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A">Improve this Doc</a>
</span>
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<a href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.Benchmark/Support/Sax/DTDHandler.cs/#L71">View Source</a>
</span>
<a id="Sax_IDTDHandler_NotationDecl_" data-uid="Sax.IDTDHandler.NotationDecl*"></a>
<h4 id="Sax_IDTDHandler_NotationDecl_System_String_System_String_System_String_" data-uid="Sax.IDTDHandler.NotationDecl(System.String,System.String,System.String)">NotationDecl(String, String, String)</h4>
<div class="markdown level1 summary"><p>Receive notification of a notation declaration event.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">void NotationDecl(string name, string publicId, string systemId)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">name</span></td>
<td><p>The notation name.</p>
</td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">publicId</span></td>
<td><p>The notation&apos;s public identifier, or <code>null</code> if none was given.</p>
</td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">systemId</span></td>
<td><p>The notation&apos;s system identifier, or <code>null</code> if none was given.</p>
</td>
</tr>
</tbody>
</table>
<h5 id="Sax_IDTDHandler_NotationDecl_System_String_System_String_System_String__remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>It is up to the application to record the notation for later
reference, if necessary;
notations may appear as attribute values and in unparsed entity
declarations, and are sometime used with processing instruction
target names.
<p>
At least one of publicId and systemId must be non-null.
If a system identifier is present, and it is a URL, the SAX
parser must resolve it fully before passing it to the
application through this event.
<p>
There is no guarantee that the notation declaration will be
reported before any unparsed entities that use it.</p>
</div>
<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Condition</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Sax.SAXException.html">SAXException</a></td>
<td><p>Any SAX exception, possibly wrapping another exception.</p>
</td>
</tr>
</tbody>
</table>
<h5 id="Sax_IDTDHandler_NotationDecl_System_String_System_String_System_String__seealso">See Also</h5>
<div class="seealso">
<div><a class="xref" href="Sax.IDTDHandler.html#Sax_IDTDHandler_UnparsedEntityDecl_System_String_System_String_System_String_System_String_">UnparsedEntityDecl(String, String, String, String)</a></div>
<div><a class="xref" href="Sax.IAttributes.html">IAttributes</a></div>
</div>
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<a href="https://github.com/NightOwl888/lucenenet/blob/release/Lucene.Net_4_8_0_beta00010/src/Lucene.Net.Benchmark/Support/Sax/DTDHandler.cs/#L95">View Source</a>
</span>
<a id="Sax_IDTDHandler_UnparsedEntityDecl_" data-uid="Sax.IDTDHandler.UnparsedEntityDecl*"></a>
<h4 id="Sax_IDTDHandler_UnparsedEntityDecl_System_String_System_String_System_String_System_String_" data-uid="Sax.IDTDHandler.UnparsedEntityDecl(System.String,System.String,System.String,System.String)">UnparsedEntityDecl(String, String, String, String)</h4>
<div class="markdown level1 summary"><p>Receive notification of an unparsed entity declaration event.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="decalaration">Declaration</h5>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">void UnparsedEntityDecl(string name, string publicId, string systemId, string notationName)</code></pre>
</div>
<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">name</span></td>
<td><p>The unparsed entity&apos;s name.</p>
</td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">publicId</span></td>
<td><p>The entity&apos;s public identifier, or null if none was given.</p>
</td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">systemId</span></td>
<td><p>The entity&apos;s system identifier.</p>
</td>
</tr>
<tr>
<td><span class="xref">System.String</span></td>
<td><span class="parametername">notationName</span></td>
<td><p>The name of the associated notation.</p>
</td>
</tr>
</tbody>
</table>
<h5 id="Sax_IDTDHandler_UnparsedEntityDecl_System_String_System_String_System_String_System_String__remarks">Remarks</h5>
<div class="markdown level1 remarks"><p>Note that the notation name corresponds to a notation
reported by the <a class="xref" href="Sax.IDTDHandler.html#Sax_IDTDHandler_NotationDecl_System_String_System_String_System_String_">NotationDecl(String, String, String)</a> event.<br>It is up to the application to record the entity for later
reference, if necessary;
unparsed entities may appear as attribute values.
<p>
If the system identifier is a URL, the parser must resolve it
fully before passing it to the application.</p>
</div>
<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-striped table-condensed">
<thead>
<tr>
<th>Type</th>
<th>Condition</th>
</tr>
</thead>
<tbody>
<tr>
<td><a class="xref" href="Sax.SAXException.html">SAXException</a></td>
<td><p>Any SAX exception, possibly wrapping another exception.</p>
</td>
</tr>
</tbody>
</table>
<h5 id="Sax_IDTDHandler_UnparsedEntityDecl_System_String_System_String_System_String_System_String__seealso">See Also</h5>
<div class="seealso">
<div><a class="xref" href="Sax.IDTDHandler.html#Sax_IDTDHandler_NotationDecl_System_String_System_String_System_String_">NotationDecl(String, String, String)</a></div>
<div><a class="xref" href="Sax.IAttributes.html">IAttributes</a></div>
</div>
<h3 id="seealso">See Also</h3>
<div class="seealso">
<div><a class="xref" href="Sax.IXMLReader.html#Sax_IXMLReader_DTDHandler">DTDHandler</a></div>
</div>
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