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<h3><a name="intro"><namespace> Element Definition</a></h3>
<p>The <b>namespace</b> element defines a namespace used within the bound XML
documents. Each namespace used within the documents must be defined using one
of these elements. When marshalling to XML, the namespace definitions included
in the binding are automatically added to the appropriate XML elements.</p>
<p>This works differently depending upon whether the namespace definition is
in the <b>binding</b> element context, or that of a <b>mapping</b> element. If the
<b>namespace</b> is the child of a <b>mapping</b> element it will be defined on the
element associated with that <b>mapping</b> when it is marshalled. Only
<b>mapping</b> elements that define an element name are allowed to have
<b>namespace</b> child elements for this reason. If the <b>namespace</b> is a
child of the <b>binding</b> element, it applies to all the top-level mappings
defined within that binding. The effect is the same as if the <b>namespace</b>
were instead present as a child element of every top-level <b>mapping</b>
element.</p>
<p>Besides defining a namespace for the XML documents, the <b>namespace</b>
element can also make that namespace the default for elements and/or attributes
within the context of the definition. This is only a shortcut -
a namespace URI can always be defined directly for each element or attribute,
and a direct definition will always override the default defined by a
<b>namespace</b> element. However, using a default namespace definition allows
easy handling of common XML document structures. A default namespace for element
names applies to the containing <b>mapping</b> element name as well as child
element names.</p>
<p>The <b>namespace</b> element uses three unique attributes, but none of the
common attribute groups.</p>
<h4><a name="Attributes">Attributes</a></h4>
<table cellpadding="3" cellspacing="2" border="1" width="100%">
<tr class="b">
<td>uri</td>
<td><p>This required attribute is the namespace URI being defined.</p></td>
</tr>
<tr class="a">
<td>default</td>
<td><p>Optionally gives the default usage of this namespace, which must be
"none" (only used where specified, the default if this attribute is
not given), "elements" (default for elements only),
"attributes" (default for attributes only), or "all" (both
elements and attributes use this namespace by default).</p></td>
</tr>
<tr class="b">
<td>prefix</td>
<td><p>This is the prefix to map to the namespace when marshalling. It is
ignored when unmarshalling, since the namespace URI is used directly to identify
elements and attributes. This attribute is required for namespaces in an output binding
unless <b>default="elements"</b> is specified.</p></td>
</tr>
</table>
<p><b>namespace</b> elements are subject to the restrictions that namespaces with
the same prefix cannot be defined in the same context, and no two namespaces can
be defined with conflicting defaults within the same context (i.e., two
namespaces each having either <b>default="elements"</b>
or <b>default="all"</b>, or two namespaces each having
<b>default="attributes"</b> or <b>default="all"</b>).</p>
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<td> © 2003-2005, Dennis M. Sosnoski (<a href="http://www.sosnoski.com">Sosnoski Software Solutions, Inc.</a>).
Licensed to the JiBX Project for free distribution and use. </td>
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