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| <meta name="DC.Title" content="Adding attribute groups" /> |
| <meta name="abstract" content="An attribute group definition is an association between a name and a set of attribute declarations. Named groups of attribute declarations can greatly facilitate the maintenance and reuse of common attribute declarations in an XML schema." /> |
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| <h1 class="topictitle1">Adding attribute groups</h1> |
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| <div><p>An attribute group definition is an association between a name |
| and a set of attribute declarations. Named groups of attribute declarations |
| can greatly facilitate the maintenance and reuse of common attribute declarations |
| in an XML schema.</p> |
| |
| <div class="section"><p>The following instructions were written for the Resource perspective, |
| but they will also work in many other perspectives.</p> |
| <p>To add an attribute |
| group 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>In the Outline view, right-click the <span class="uicontrol">Attribute Groups</span> folder |
| and click <span class="uicontrol">Add Attribute Group</span>.</span> It appears |
| in the <span class="uicontrol">Attribute Groups</span> folder.</li> |
| |
| <li class="stepexpand"><span>Select your new group, and in the Design view, right-click the |
| attribute group and select <span class="menucascade"><span class="uicontrol">Refactor</span> > <span class="uicontrol">Rename</span> |
| </span>. In the <span class="uicontrol">New Name</span> field, type a name |
| for the attribute group.</span></li> |
| |
| <li class="stepexpand"><span>To add an attribute, right-click your attribute group in the Outline |
| view, click <span class="uicontrol">Add Attribute</span>.</span> The attribute |
| appears below the attribute group in the Outline view. |
| <ol type="a"> |
| <li class="substepexpand"><span>Select the attribute, and in the Design view, click the current |
| (default) name of the attribute, then type the new <span class="uicontrol">Name</span>.</span> |
| </li> |
| |
| <li class="substepexpand"><span>In the Design view, click the current (default) attribute type |
| and select a type from the menu. Alternately, you can select browse to invoke |
| the Set Type menu for more options.</span> The Set Type dialog lists all |
| built-in and user-defined types currently available. You can change the <span class="uicontrol">Scope</span> of |
| the list by selecting one of the following options:<ul> |
| <li><span class="uicontrol">Workspace</span>. Lists all of the types available in |
| your workspace. </li> |
| |
| <li><span class="uicontrol">Enclosing Project</span>. Lists all of the types available |
| in the project that contains your file. </li> |
| |
| <li>(Default) <span class="uicontrol">Current Resource</span>. List all of the types |
| available in your current file.</li> |
| |
| <li><span class="uicontrol">Working Sets</span>. List all the types available within |
| the selected working set.</li> |
| |
| </ul> |
| </li> |
| |
| </ol> |
| |
| </li> |
| |
| <li class="stepexpand"><span>An attribute reference provides a reference to a global attribute. |
| To add an attribute reference, in the Design 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. 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. |
| </li> |
| |
| <li class="stepexpand"><span>An attribute group reference provides a reference to an attribute |
| group. To add an attribute group reference, in the Design view, right-click |
| the complex type containing the element, and click <span class="uicontrol">Add Attribute |
| Group 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. 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.</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 your attribute group and click <span class="uicontrol">Add Any Attribute</span>.</span> |
| The <samp class="codeph">any</samp> appears below the attribute group in the Outline |
| view. You can specify the following values for an <samp class="codeph">any</samp> attribute: |
| <ul> |
| <li>For a <span class="uicontrol">namespace</span> value, you can |
| select:<ul> |
| <li><strong>##any</strong>. This allows any well-formed XML from any namespace.</li> |
| |
| <li><strong>##local </strong>. This allows any well-formed XML that is not declared |
| to be in a namespace.</li> |
| |
| <li><strong>##other</strong>. This allows any well-formed XML that is not from the target |
| namespace of the type being defined.</li> |
| |
| <li><strong>##targetNamespace </strong>. This is shorthand for the target namespace |
| of the type being defined.</li> |
| |
| </ul> |
| </li> |
| |
| <li>For a <span class="uicontrol">processContents</span> value, you can select:<ul> |
| <li><strong>skip</strong>. The XML processor will not validate the attribute content |
| at all.</li> |
| |
| <li><strong>lax</strong>. The XML processor will validate the attribute content as much |
| as it can.</li> |
| |
| <li><strong>strict</strong>. The XML processor will validate all the attribute content.</li> |
| |
| </ul> |
| </li> |
| |
| </ul> |
| |
| </li> |
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| </ol> |
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