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Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li><a href="qtxmlpatterns.html">QtXmlPatterns</a></li> <li>QXmlSchema</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> <li class="level2"><a href="#xml-schema-version">XML Schema Version</a></li> </ul> </div> <h1 class="title">QXmlSchema Class Reference</h1> <!-- $$$QXmlSchema-brief --> <p>The QXmlSchema class provides loading and validation of a W3C XML Schema. <a href="#details">More...</a></p> <!-- @@@QXmlSchema --> <pre class="cpp"> <span class="preprocessor">#include <QXmlSchema></span></pre><p><b>Note:</b> All functions in this class are <a href="threads-reentrancy.html#reentrant">reentrant</a>.</p> <p>This class was introduced in Qt 4.6.</p> <ul> <li><a href="qxmlschema-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#QXmlSchema">QXmlSchema</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#QXmlSchema-2">QXmlSchema</a></b> ( const QXmlSchema & <i>other</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#dtor.QXmlSchema">~QXmlSchema</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QUrl </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#documentUri">documentUri</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#isValid">isValid</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#load">load</a></b> ( const QUrl & <i>source</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#load-2">load</a></b> ( QIODevice * <i>source</i>, const QUrl & <i>documentUri</i> = QUrl() )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#load-3">load</a></b> ( const QByteArray & <i>data</i>, const QUrl & <i>documentUri</i> = QUrl() )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QAbstractMessageHandler * </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#messageHandler">messageHandler</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QXmlNamePool </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#namePool">namePool</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QNetworkAccessManager * </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#networkAccessManager">networkAccessManager</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#setMessageHandler">setMessageHandler</a></b> ( QAbstractMessageHandler * <i>handler</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#setNetworkAccessManager">setNetworkAccessManager</a></b> ( QNetworkAccessManager * <i>manager</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#setUriResolver">setUriResolver</a></b> ( const QAbstractUriResolver * <i>resolver</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> const QAbstractUriResolver * </td><td class="memItemRight bottomAlign"><b><a href="qxmlschema.html#uriResolver">uriResolver</a></b> () const</td></tr> </table> <a name="details"></a> <!-- $$$QXmlSchema-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The QXmlSchema class provides loading and validation of a W3C XML Schema.</p> <p>The QXmlSchema class loads, compiles and validates W3C XML Schema files that can be used further for validation of XML instance documents via <a href="qxmlschemavalidator.html">QXmlSchemaValidator</a>.</p> <p>The following example shows how to load a XML Schema file from the network and test whether it is a valid schema document:</p> <pre class="cpp"> <span class="type"><a href="qurl.html">QUrl</a></span> url(<span class="string">"http://www.schema-example.org/myschema.xsd"</span>); <span class="type">QXmlSchema</span> schema; <span class="keyword">if</span> (schema<span class="operator">.</span>load(url) <span class="operator">=</span><span class="operator">=</span> <span class="keyword">true</span>) <a href="qtglobal.html#qDebug">qDebug</a>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"schema is valid"</span>; <span class="keyword">else</span> <a href="qtglobal.html#qDebug">qDebug</a>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"schema is invalid"</span>;</pre> <a name="xml-schema-version"></a> <h3>XML Schema Version</h3> <p>This class is used to represent schemas that conform to the <a href="http://www.w3.org/XML/Schema">XML Schema</a> 1.0 specification.</p> </div> <p><b>See also </b><a href="qxmlschemavalidator.html">QXmlSchemaValidator</a> and <a href="xmlpatterns-schema.html">XML Schema Validation Example</a>.</p> <!-- @@@QXmlSchema --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QXmlSchema[overload1]$$$QXmlSchema --> <h3 class="fn"><a name="QXmlSchema"></a>QXmlSchema::<span class="name">QXmlSchema</span> ()</h3> <p>Constructs an invalid, empty schema that cannot be used until <a href="qxmlschema.html#load">load</a>() is called.</p> <!-- @@@QXmlSchema --> <!-- $$$QXmlSchema$$$QXmlSchemaconstQXmlSchema& --> <h3 class="fn"><a name="QXmlSchema-2"></a>QXmlSchema::<span class="name">QXmlSchema</span> ( const <span class="type">QXmlSchema</span> & <i>other</i> )</h3> <p>Constructs a <a href="qxmlschema.html">QXmlSchema</a> that is a copy of <i>other</i>. The new instance will share resources with the existing schema to the extent possible.</p> <!-- @@@QXmlSchema --> <!-- $$$~QXmlSchema[overload1]$$$~QXmlSchema --> <h3 class="fn"><a name="dtor.QXmlSchema"></a>QXmlSchema::<span class="name">~QXmlSchema</span> ()</h3> <p>Destroys this <a href="qxmlschema.html">QXmlSchema</a>.</p> <!-- @@@~QXmlSchema --> <!-- $$$documentUri[overload1]$$$documentUri --> <h3 class="fn"><a name="documentUri"></a><span class="type"><a href="qurl.html">QUrl</a></span> QXmlSchema::<span class="name">documentUri</span> () const</h3> <p>Returns the document URI of the schema or an empty URI if no schema has been set.</p> <!-- @@@documentUri --> <!-- $$$isValid[overload1]$$$isValid --> <h3 class="fn"><a name="isValid"></a><span class="type">bool</span> QXmlSchema::<span class="name">isValid</span> () const</h3> <p>Returns true if this schema is valid. Examples of invalid schemas are ones that contain syntax errors or that do not conform the W3C XML Schema specification.</p> <!-- @@@isValid --> <!-- $$$load[overload1]$$$loadconstQUrl& --> <h3 class="fn"><a name="load"></a><span class="type">bool</span> QXmlSchema::<span class="name">load</span> ( const <span class="type"><a href="qurl.html">QUrl</a></span> & <i>source</i> )</h3> <p>Sets this <a href="qxmlschema.html">QXmlSchema</a> to a schema loaded from the <i>source</i> URI.</p> <p>If the schema <a href="qxmlschema.html#isValid">is invalid</a>, <tt>false</tt> is returned and the behavior is undefined.</p> <p>Example:</p> <pre class="cpp"> <span class="type"><a href="qurl.html">QUrl</a></span> url(<span class="string">"http://www.schema-example.org/myschema.xsd"</span>); <span class="type"><a href="qxmlschema.html">QXmlSchema</a></span> schema; <span class="keyword">if</span> (schema<span class="operator">.</span>load(url) <span class="operator">=</span><span class="operator">=</span> <span class="keyword">true</span>) <a href="qtglobal.html#qDebug">qDebug</a>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"schema is valid"</span>; <span class="keyword">else</span> <a href="qtglobal.html#qDebug">qDebug</a>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"schema is invalid"</span>;</pre> <p><b>See also </b><a href="qxmlschema.html#isValid">isValid</a>().</p> <!-- @@@load --> <!-- $$$load$$$loadQIODevice*constQUrl& --> <h3 class="fn"><a name="load-2"></a><span class="type">bool</span> QXmlSchema::<span class="name">load</span> ( <span class="type"><a href="qiodevice.html">QIODevice</a></span> * <i>source</i>, const <span class="type"><a href="qurl.html">QUrl</a></span> & <i>documentUri</i> = QUrl() )</h3> <p>Sets this <a href="qxmlschema.html">QXmlSchema</a> to a schema read from the <i>source</i> device. The device must have been opened with at least <a href="qiodevice.html#OpenModeFlag-enum">QIODevice::ReadOnly</a>.</p> <p><i>documentUri</i> represents the schema obtained from the <i>source</i> device. It is the base URI of the schema, that is used internally to resolve relative URIs that appear in the schema, and for message reporting.</p> <p>If <i>source</i> is <tt>null</tt> or not readable, or if <i>documentUri</i> is not a valid URI, behavior is undefined.</p> <p>If the schema <a href="qxmlschema.html#isValid">is invalid</a>, <tt>false</tt> is returned and the behavior is undefined.</p> <p>Example:</p> <pre class="cpp"> <span class="type"><a href="qfile.html">QFile</a></span> file(<span class="string">"myschema.xsd"</span>); file<span class="operator">.</span>open(<span class="type"><a href="qiodevice.html">QIODevice</a></span><span class="operator">::</span>ReadOnly); <span class="type"><a href="qxmlschema.html">QXmlSchema</a></span> schema; schema<span class="operator">.</span>load(<span class="operator">&</span>file<span class="operator">,</span> <span class="type"><a href="qurl.html">QUrl</a></span><span class="operator">::</span>fromLocalFile(file<span class="operator">.</span>fileName())); <span class="keyword">if</span> (schema<span class="operator">.</span>isValid()) <a href="qtglobal.html#qDebug">qDebug</a>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"schema is valid"</span>; <span class="keyword">else</span> <a href="qtglobal.html#qDebug">qDebug</a>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"schema is invalid"</span>;</pre> <p><b>See also </b><a href="qxmlschema.html#isValid">isValid</a>().</p> <!-- @@@load --> <!-- $$$load$$$loadconstQByteArray&constQUrl& --> <h3 class="fn"><a name="load-3"></a><span class="type">bool</span> QXmlSchema::<span class="name">load</span> ( const <span class="type"><a href="qbytearray.html">QByteArray</a></span> & <i>data</i>, const <span class="type"><a href="qurl.html">QUrl</a></span> & <i>documentUri</i> = QUrl() )</h3> <p>Sets this <a href="qxmlschema.html">QXmlSchema</a> to a schema read from the <i>data</i></p> <p><i>documentUri</i> represents the schema obtained from the <i>data</i>. It is the base URI of the schema, that is used internally to resolve relative URIs that appear in the schema, and for message reporting.</p> <p>If <i>documentUri</i> is not a valid URI, behavior is undefined.</p> <p>If the schema <a href="qxmlschema.html#isValid">is invalid</a>, <tt>false</tt> is returned and the behavior is undefined.</p> <p>Example:</p> <pre class="cpp"> <span class="type"><a href="qbytearray.html">QByteArray</a></span> data( <span class="string">"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"</span> <span class="string">"<xsd:schema"</span> <span class="string">" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\""</span> <span class="string">" xmlns=\"http://qt.nokia.com/xmlschematest\""</span> <span class="string">" targetNamespace=\"http://qt.nokia.com/xmlschematest\""</span> <span class="string">" version=\"1.0\""</span> <span class="string">" elementFormDefault=\"qualified\">"</span> <span class="string">"</xsd:schema>"</span> ); <span class="type"><a href="qxmlschema.html">QXmlSchema</a></span> schema; schema<span class="operator">.</span>load(data); <span class="keyword">if</span> (schema<span class="operator">.</span>isValid()) <a href="qtglobal.html#qDebug">qDebug</a>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"schema is valid"</span>; <span class="keyword">else</span> <a href="qtglobal.html#qDebug">qDebug</a>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"schema is invalid"</span>;</pre> <p><b>See also </b><a href="qxmlschema.html#isValid">isValid</a>() and <a href="qxmlschema.html#isValid">isValid</a>().</p> <!-- @@@load --> <!-- $$$messageHandler[overload1]$$$messageHandler --> <h3 class="fn"><a name="messageHandler"></a><span class="type"><a href="qabstractmessagehandler.html">QAbstractMessageHandler</a></span> * QXmlSchema::<span class="name">messageHandler</span> () const</h3> <p>Returns the message handler that handles compile and validation messages for this <a href="qxmlschema.html">QXmlSchema</a>.</p> <p><b>See also </b><a href="qxmlschema.html#setMessageHandler">setMessageHandler</a>().</p> <!-- @@@messageHandler --> <!-- $$$namePool[overload1]$$$namePool --> <h3 class="fn"><a name="namePool"></a><span class="type"><a href="qxmlnamepool.html">QXmlNamePool</a></span> QXmlSchema::<span class="name">namePool</span> () const</h3> <p>Returns the name pool used by this <a href="qxmlschema.html">QXmlSchema</a> for constructing <a href="qxmlname.html">names</a>. There is no setter for the name pool, because mixing name pools causes errors due to name confusion.</p> <!-- @@@namePool --> <!-- $$$networkAccessManager[overload1]$$$networkAccessManager --> <h3 class="fn"><a name="networkAccessManager"></a><span class="type"><a href="qnetworkaccessmanager.html">QNetworkAccessManager</a></span> * QXmlSchema::<span class="name">networkAccessManager</span> () const</h3> <p>Returns the network manager, or 0 if it has not been set.</p> <p><b>See also </b><a href="qxmlschema.html#setNetworkAccessManager">setNetworkAccessManager</a>().</p> <!-- @@@networkAccessManager --> <!-- $$$setMessageHandler[overload1]$$$setMessageHandlerQAbstractMessageHandler* --> <h3 class="fn"><a name="setMessageHandler"></a><span class="type">void</span> QXmlSchema::<span class="name">setMessageHandler</span> ( <span class="type"><a href="qabstractmessagehandler.html">QAbstractMessageHandler</a></span> * <i>handler</i> )</h3> <p>Changes the <a href="qabstractmessagehandler.html">message handler</a> for this <a href="qxmlschema.html">QXmlSchema</a> to <i>handler</i>. The schema sends all compile and validation messages to this message handler. <a href="qxmlschema.html">QXmlSchema</a> does not take ownership of <i>handler</i>.</p> <p>Normally, the default message handler is sufficient. It writes compile and validation messages to <i>stderr</i>. The default message handler includes color codes if <i>stderr</i> can render colors.</p> <p>When <a href="qxmlschema.html">QXmlSchema</a> calls <a href="qabstractmessagehandler.html#message">QAbstractMessageHandler::message</a>(), the arguments are as follows:</p> <table class="generic"> <thead><tr class="qt-style"><th >message() argument</th><th >Semantics</th></tr></thead> <tr valign="top" class="odd"><td ><a href="qtglobal.html#QtMsgType-enum">QtMsgType</a> type</td><td >Only <a href="qtglobal.html#QtMsgType-enum">QtWarningMsg</a> and <a href="qtglobal.html#QtMsgType-enum">QtFatalMsg</a> are used. The former identifies a warning, while the latter identifies an error.</td></tr> <tr valign="top" class="even"><td >const <a href="qstring.html">QString</a> & description</td><td >An XHTML document which is the actual message. It is translated into the current language.</td></tr> <tr valign="top" class="odd"><td >const <a href="qurl.html">QUrl</a> &identifier</td><td >Identifies the error with a URI, where the fragment is the error code, and the rest of the URI is the error namespace.</td></tr> <tr valign="top" class="even"><td >const <a href="qsourcelocation.html">QSourceLocation</a> & sourceLocation</td><td >Identifies where the error occurred.</td></tr> </table> <p><b>See also </b><a href="qxmlschema.html#messageHandler">messageHandler</a>().</p> <!-- @@@setMessageHandler --> <!-- $$$setNetworkAccessManager[overload1]$$$setNetworkAccessManagerQNetworkAccessManager* --> <h3 class="fn"><a name="setNetworkAccessManager"></a><span class="type">void</span> QXmlSchema::<span class="name">setNetworkAccessManager</span> ( <span class="type"><a href="qnetworkaccessmanager.html">QNetworkAccessManager</a></span> * <i>manager</i> )</h3> <p>Sets the network manager to <i>manager</i>. <a href="qxmlschema.html">QXmlSchema</a> does not take ownership of <i>manager</i>.</p> <p><b>See also </b><a href="qxmlschema.html#networkAccessManager">networkAccessManager</a>().</p> <!-- @@@setNetworkAccessManager --> <!-- $$$setUriResolver[overload1]$$$setUriResolverconstQAbstractUriResolver* --> <h3 class="fn"><a name="setUriResolver"></a><span class="type">void</span> QXmlSchema::<span class="name">setUriResolver</span> ( const <span class="type"><a href="qabstracturiresolver.html">QAbstractUriResolver</a></span> * <i>resolver</i> )</h3> <p>Sets the URI resolver to <i>resolver</i>. <a href="qxmlschema.html">QXmlSchema</a> does not take ownership of <i>resolver</i>.</p> <p><b>See also </b><a href="qxmlschema.html#uriResolver">uriResolver</a>().</p> <!-- @@@setUriResolver --> <!-- $$$uriResolver[overload1]$$$uriResolver --> <h3 class="fn"><a name="uriResolver"></a>const <span class="type"><a href="qabstracturiresolver.html">QAbstractUriResolver</a></span> * QXmlSchema::<span class="name">uriResolver</span> () const</h3> <p>Returns the schema's URI resolver. If no URI resolver has been set, <a href="qtxmlpatterns.html">QtXmlPatterns</a> will use the URIs in schemas as they are.</p> <p>The URI resolver provides a level of abstraction, or <i>polymorphic URIs</i>. A resolver can rewrite <i>logical</i> URIs to physical ones, or it can translate obsolete or invalid URIs to valid ones.</p> <p>When <a href="qtxmlpatterns.html">QtXmlPatterns</a> calls <a href="qabstracturiresolver.html#resolve">QAbstractUriResolver::resolve</a>() the absolute URI is the URI mandated by the schema specification, and the relative URI is the URI specified by the user.</p> <p><b>See also </b><a href="qxmlschema.html#setUriResolver">setUriResolver</a>().</p> <!-- @@@uriResolver --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.</p> <br /> <p> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.</p> <p> Documentation sources may be obtained from <a href="http://www.qt-project.org"> www.qt-project.org</a>.</p> <br /> <p> Qt and respective logos are trademarks of The Qt Company Ltd in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. <a title="Privacy Policy" href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p> </div> <script src="scripts/functions.js" type="text/javascript"></script> </body> </html>