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 <h1 class="topictitle1">Adding complex types</h1>


 <div><p>A complex type allows elements in its content and can carry attributes.
 Complex types can be used to help determine the appropriate content for any
 instance documents generated from or associated with your XML schema.</p>

 <div class="section"><p>You can add as many complex types as you want to an XML schema.</p>
 <p>The
 following instructions were written for the Resource perspective, but they
 will also work in many other perspectives.</p>
 <p>To add a complex type to
 an XML schema, follow these steps:</p>
 </div>

 <ol>
 <li class="stepexpand"><span>Open your XML schema in the XML schema editor.</span></li>

 <li class="stepexpand"><span>Right-click the Types category in the Graph view, and click <span class="uicontrol">Add
 Complex Type</span>.</span></li>

 <li class="stepexpand"><span>In the Properties view, type a new name for the complex type in
 the <span class="uicontrol">Name</span> field.</span></li>

 <li class="stepexpand"><span>Click the <span class="uicontrol">Browse</span> <img src="../images/Browse.gif" alt="Browse icon" /> button to select a base type for your complex
 type.</span> You can either set a base type for your complex type, or
 you can add a content model to it (which represents any data that can be contained
 inside an element), but you cannot do both. For more information about content
 models, refer to the related tasks.</li>

 <li class="stepexpand"><span>Select <span class="uicontrol">restriction</span> or <span class="uicontrol">extension</span> from
 the <span class="uicontrol">Inherited by</span> list.</span> This specifies whether
 your type is derived from its base type by restriction or extension.
 </li>

 <li class="stepexpand"><span>The Graph view will display the attributes within the complex type.</span>
  You can also use this view to add attributes to your complex type. An
 attribute associates an attribute name with a specific type and value.
 <ol type="a">
 <li><span>To add an attribute, in the graph view, right click your complex
 type and select <span class="uicontrol">Add Attribute</span>.</span></li>

 </ol>

 <ul>
 <li><span class="uicontrol">name</span>. In the Graph view, click the name of
 the attribute to make a change.</li>

 <li><span class="uicontrol">type</span>. In the Graph view, click the type of
 the attribute to make a change. The drop-down menu provides commonly used
 types. For more options, simply select <span class="uicontrol">Browse</span> from
 the menu.</li>

 </ul>

 </li>

 <li class="stepexpand"><span>An attribute reference provides a reference to a global attribute.
 To add an attribute reference, in the Graph view, right-click the complex
 type containing the element, and click <span class="uicontrol">Add Attribute Ref</span>.</span>
  A declaration that references a global attribute enables the referenced
 attribute to appear in the instance document in the context of the referencing
 declaration.
 <ol type="a">
 <li><span>Select the reference, then select the attribute group you want
 it to reference in the Properties view, from the<span class="uicontrol">Ref</span> menu.</span>
 </li>

 </ol>

 </li>

 <li class="stepexpand"><span>An attribute group reference provides a reference to an attribute
 group. To add an attribute group reference, in the Graph view, right-click
 the complex type containing the element, and click <span class="uicontrol">Add Attribute
 Group Ref</span>.</span> A declaration that references an attribute
 group enables the referenced attribute group to appear in the instance document
 in the context of the referencing declaration.
 <ol type="a">
 <li><span>Select the reference, then select the attribute group you want
 it to reference in the Properties view, from the<span class="uicontrol">Ref</span> menu.</span>
 </li>

 </ol>

 </li>

 <li class="stepexpand"><span>An <samp class="codeph">any</samp> element enables element content according
 to namespaces, and the corresponding <samp class="codeph">any</samp> attribute element
 enables attributes to appear in elements. To add an <samp class="codeph">any</samp> attribute,
 right-click in the complex type header, and click <span class="uicontrol">Add Any Attribute</span>.</span>
  You can specify the following values for an <samp class="codeph">any</samp> attribute:
 <ul>
 <li>For a <strong>namespace</strong> value, you can select <strong>##any</strong> (this allows
 any well-formed XML from any namespace), <strong>##local </strong> (this allows any
 well-formed XML that is not declared to be in a namespace, <strong>##other </strong> (this
 allows any well-formed XML that is not from the target namespace of the type
 being defined) or <strong>##targetNamespace </strong> (which is shorthand for the target
 namespace of the type being defined). </li>

 <li>For a <span class="uicontrol">processContents</span> value, you can select <strong>skip</strong> (the
 XML processor will not validate the attribute content at all), <strong>lax</strong>(the
 XML processor will validate the attribute content as much as it can), or <strong>strict </strong> (the
 XML processor will validate all the attribute content).</li>

 </ul>

  </li>

 <li class="stepexpand"><span>Click the <span class="uicontrol">Documentation</span> tab if you want
 to provide any information about this complex type.</span> The <span class="uicontrol">Documentation</span> page
 is used for human readable material, such as a description, and the <span class="uicontrol">App
 Info</span> page can be used to provide information for applications.
 </li>

 </ol>

 </div>

 <div><div class="reltasks"><strong>Related tasks</strong><br />
 <div><a href="../topics/taddcmod.html" title="A content model is the representation of any data that can be contained inside an element, global element, complex type, or group. It is a formal description of the structure and permissible content of an element, global element, complex type, or group, which may be used to validate a document instance.">Adding content models</a></div>
 </div>
 </div>

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	<meta name="description" content="A complex type allows elements in its content and can carry attributes. Complex types can be used to help determine the appropriate content for any instance documents generated from or associated with your XML schema." />
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	<title>Adding complex types</title>
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	<body id="taddcmxt"><a name="taddcmxt"><!-- --></a>


	<h1 class="topictitle1">Adding complex types</h1>




	<div><p>A complex type allows elements in its content and can carry attributes.
	Complex types can be used to help determine the appropriate content for any
	instance documents generated from or associated with your XML schema.</p>

	<div class="section"><p>You can add as many complex types as you want to an XML schema.</p>
	<p>The
	following instructions were written for the Resource perspective, but they
	will also work in many other perspectives.</p>
	<p>To add a complex type to
	an XML schema, follow these steps:</p>
	</div>

	<ol>
	<li class="stepexpand"><span>Open your XML schema in the XML schema editor.</span></li>

	<li class="stepexpand"><span>Right-click the Types category in the Graph view, and click <span class="uicontrol">Add
	Complex Type</span>.</span></li>

	<li class="stepexpand"><span>In the Properties view, type a new name for the complex type in
	the <span class="uicontrol">Name</span> field.</span></li>

	<li class="stepexpand"><span>Click the <span class="uicontrol">Browse</span> <img src="../images/Browse.gif" alt="Browse icon" /> button to select a base type for your complex
	type.</span> You can either set a base type for your complex type, or
	you can add a content model to it (which represents any data that can be contained
	inside an element), but you cannot do both. For more information about content
	models, refer to the related tasks.</li>

	<li class="stepexpand"><span>Select <span class="uicontrol">restriction</span> or <span class="uicontrol">extension</span> from
	the <span class="uicontrol">Inherited by</span> list.</span> This specifies whether
	your type is derived from its base type by restriction or extension.
	</li>

	<li class="stepexpand"><span>The Graph view will display the attributes within the complex type.</span>
	You can also use this view to add attributes to your complex type. An
	attribute associates an attribute name with a specific type and value.
	<ol type="a">
	<li><span>To add an attribute, in the graph view, right click your complex
	type and select <span class="uicontrol">Add Attribute</span>.</span></li>

	</ol>

	<ul>
	<li><span class="uicontrol">name</span>. In the Graph view, click the name of
	the attribute to make a change.</li>

	<li><span class="uicontrol">type</span>. In the Graph view, click the type of
	the attribute to make a change. The drop-down menu provides commonly used
	types. For more options, simply select <span class="uicontrol">Browse</span> from
	the menu.</li>

	</ul>

	</li>

	<li class="stepexpand"><span>An attribute reference provides a reference to a global attribute.
	To add an attribute reference, in the Graph view, right-click the complex
	type containing the element, and click <span class="uicontrol">Add Attribute Ref</span>.</span>
	A declaration that references a global attribute enables the referenced
	attribute to appear in the instance document in the context of the referencing
	declaration.
	<ol type="a">
	<li><span>Select the reference, then select the attribute group you want
	it to reference in the Properties view, from the<span class="uicontrol">Ref</span> menu.</span>
	</li>

	</ol>

	</li>

	<li class="stepexpand"><span>An attribute group reference provides a reference to an attribute
	group. To add an attribute group reference, in the Graph view, right-click
	the complex type containing the element, and click <span class="uicontrol">Add Attribute
	Group Ref</span>.</span> A declaration that references an attribute
	group enables the referenced attribute group to appear in the instance document
	in the context of the referencing declaration.
	<ol type="a">
	<li><span>Select the reference, then select the attribute group you want
	it to reference in the Properties view, from the<span class="uicontrol">Ref</span> menu.</span>
	</li>

	</ol>

	</li>

	<li class="stepexpand"><span>An <samp class="codeph">any</samp> element enables element content according
	to namespaces, and the corresponding <samp class="codeph">any</samp> attribute element
	enables attributes to appear in elements. To add an <samp class="codeph">any</samp> attribute,
	right-click in the complex type header, and click <span class="uicontrol">Add Any Attribute</span>.</span>
	You can specify the following values for an <samp class="codeph">any</samp> attribute:
	<ul>
	<li>For a <strong>namespace</strong> value, you can select <strong>##any</strong> (this allows
	any well-formed XML from any namespace), <strong>##local </strong> (this allows any
	well-formed XML that is not declared to be in a namespace, <strong>##other </strong> (this
	allows any well-formed XML that is not from the target namespace of the type
	being defined) or <strong>##targetNamespace </strong> (which is shorthand for the target
	namespace of the type being defined). </li>

	<li>For a <span class="uicontrol">processContents</span> value, you can select <strong>skip</strong> (the
	XML processor will not validate the attribute content at all), <strong>lax</strong>(the
	XML processor will validate the attribute content as much as it can), or <strong>strict </strong> (the
	XML processor will validate all the attribute content).</li>

	</ul>

	</li>

	<li class="stepexpand"><span>Click the <span class="uicontrol">Documentation</span> tab if you want
	to provide any information about this complex type.</span> The <span class="uicontrol">Documentation</span> page
	is used for human readable material, such as a description, and the <span class="uicontrol">App
	Info</span> page can be used to provide information for applications.
	</li>

	</ol>

	</div>

	<div><div class="reltasks"><strong>Related tasks</strong><br />
	<div><a href="../topics/taddcmod.html" title="A content model is the representation of any data that can be contained inside an element, global element, complex type, or group. It is a formal description of the structure and permissible content of an element, global element, complex type, or group, which may be used to validate a document instance.">Adding content models</a></div>
	</div>
	</div>

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