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Java 2 Platform EE v1.3: Class NamespaceSupport
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SUMMARY: INNER | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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org.xml.sax.helpers</FONT>
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Class NamespaceSupport</H2>
<PRE>
java.lang.Object
|
+--<B>org.xml.sax.helpers.NamespaceSupport</B>
</PRE>
<HR>
<DL>
<DT>public class <B>NamespaceSupport</B><DT>extends java.lang.Object</DL>
<P>
Encapsulate Namespace logic for use by SAX drivers.
<blockquote>
<em>This module, both source code and documentation, is in the
Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
</blockquote>
<p>This class encapsulates the logic of Namespace processing:
it tracks the declarations currently in force for each context
and automatically processes qualified XML 1.0 names into their
Namespace parts; it can also be used in reverse for generating
XML 1.0 from Namespaces.</p>
<p>Namespace support objects are reusable, but the reset method
must be invoked between each session.</p>
<p>Here is a simple session:</p>
<pre>
String parts[] = new String[3];
NamespaceSupport support = new NamespaceSupport();
support.pushContext();
support.declarePrefix("", "http://www.w3.org/1999/xhtml");
support.declarePrefix("dc", "http://www.purl.org/dc#");
String parts[] = support.processName("p", parts, false);
System.out.println("Namespace URI: " + parts[0]);
System.out.println("Local name: " + parts[1]);
System.out.println("Raw name: " + parts[2]);
String parts[] = support.processName("dc:title", parts, false);
System.out.println("Namespace URI: " + parts[0]);
System.out.println("Local name: " + parts[1]);
System.out.println("Raw name: " + parts[2]);
support.popContext();
</pre>
<p>Note that this class is optimized for the use case where most
elements do not contain Namespace declarations: if the same
prefix/URI mapping is repeated for each context (for example), this
class will be somewhat less efficient.</p>
<P>
<DL>
<DT><B>Since: </B><DD>SAX 2.0</DD>
</DL>
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<CODE>static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#XMLNS">XMLNS</A></B></CODE>
<BR>
The XML Namespace as a constant.</TD>
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<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#NamespaceSupport()">NamespaceSupport</A></B>()</CODE>
<BR>
Create a new Namespace support object.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#declarePrefix(java.lang.String, java.lang.String)">declarePrefix</A></B>(java.lang.String prefix,
java.lang.String uri)</CODE>
<BR>
Declare a Namespace prefix.</TD>
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<CODE> java.util.Enumeration</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#getDeclaredPrefixes()">getDeclaredPrefixes</A></B>()</CODE>
<BR>
Return an enumeration of all prefixes declared in this context.</TD>
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<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#getPrefix(java.lang.String)">getPrefix</A></B>(java.lang.String uri)</CODE>
<BR>
Return one of the prefixes mapped to a Namespace URI.</TD>
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<CODE> java.util.Enumeration</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#getPrefixes()">getPrefixes</A></B>()</CODE>
<BR>
Return an enumeration of all prefixes currently declared.</TD>
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<CODE> java.util.Enumeration</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#getPrefixes(java.lang.String)">getPrefixes</A></B>(java.lang.String uri)</CODE>
<BR>
Return an enumeration of all prefixes currently declared for a URI.</TD>
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<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#getURI(java.lang.String)">getURI</A></B>(java.lang.String prefix)</CODE>
<BR>
Look up a prefix and get the currently-mapped Namespace URI.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#popContext()">popContext</A></B>()</CODE>
<BR>
Revert to the previous Namespace context.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#processName(java.lang.String, java.lang.String[], boolean)">processName</A></B>(java.lang.String qName,
java.lang.String[] parts,
boolean isAttribute)</CODE>
<BR>
Process a raw XML 1.0 name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#pushContext()">pushContext</A></B>()</CODE>
<BR>
Start a new Namespace context.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/xml/sax/helpers/NamespaceSupport.html#reset()">reset</A></B>()</CODE>
<BR>
Reset this Namespace support object for reuse.</TD>
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<TD><B>Methods inherited from class java.lang.Object</B></TD>
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<A NAME="XMLNS"><!-- --></A><H3>
XMLNS</H3>
<PRE>
public static final java.lang.String <B>XMLNS</B></PRE>
<DL>
<DD>The XML Namespace as a constant.
<p>This is the Namespace URI that is automatically mapped
to the "xml" prefix.</p></DL>
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