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  29. <TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="ffffff" colspan="2" width="494"><TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="492"><FONT color="#ffffff" face="arial,helvetica,sanserif" size="+1"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Introduction</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="484"><FONT color="#000000" face="arial,helvetica,sanserif">
  30. <P>Xerces-C++ includes an implementation of the W3C XML Schema
  31. specification, a recommendation of the Worldwide Web Consortium
  32. available in three parts:
  33. <A href="http://www.w3.org/TR/xmlschema-0/">XML Schema: Primer</A>,
  34. <A href="http://www.w3.org/TR/xmlschema-1/">XML Schema: Structures</A> and
  35. <A href="http://www.w3.org/TR/xmlschema-2/">XML Schema: Datatypes</A>.
  36. We consider this implementation complete except for the limitations outlined below.
  37. </P>
  38. </FONT></TD></TR></TABLE><BR>
  39. <A name="limitation"><!--anchor--></A>
  40. <TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="ffffff" colspan="2" width="494"><TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="492"><FONT color="#ffffff" face="arial,helvetica,sanserif" size="+1"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Limitations</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="484"><FONT color="#000000" face="arial,helvetica,sanserif">
  41. <UL>
  42. <LI>In certain complex content models specifying large
  43. values for the <CODE><FONT face="courier, monospaced">minOccurs</FONT></CODE> or <CODE><FONT face="courier, monospaced">maxOccurs</FONT></CODE>
  44. attributes may result in poor performance and/or large amount
  45. of memory being allocated by the parser. In such situations large values for
  46. <CODE><FONT face="courier, monospaced">minOccurs</FONT></CODE> should be avoided, and <CODE><FONT face="courier, monospaced">unbounded</FONT></CODE>
  47. should be used instead.</LI>
  48. <LI>The parser treats local elements in the same scope with the
  49. same name and namespace as one element declaration and does not
  50. differentiate between them.</LI>
  51. </UL>
  52. </FONT></TD></TR></TABLE><BR>
  53. <A name="interpretation"><!--anchor--></A>
  54. <TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="ffffff" colspan="2" width="494"><TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="492"><FONT color="#ffffff" face="arial,helvetica,sanserif" size="+1"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Interpretation of Areas that are Unclear or Implementation-Dependent</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="484"><FONT color="#000000" face="arial,helvetica,sanserif">
  55. <TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="ffffff" colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>keyref</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">
  56. <P>
  57. We have interpreted the specs as requiring &lt;keyref&gt; Identity Constraints to refer to
  58. &lt;key&gt; or &lt;unique&gt; identity constraints within the scope of the elements to which
  59. the &lt;keyref&gt; is attached. This interpretation is at variance with the Schema Primer, which
  60. contains an example with a &lt;keyref&gt; declared on an element used inside the element of its
  61. corresponding &lt;key&gt;.
  62. </P>
  63. </FONT></TD></TR></TABLE><BR>
  64. <TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="ffffff" colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>out-of-bound float values</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">
  65. <P>
  66. For float data, the specification does not explicitly prescribe how to deal with
  67. out-of-bound data. Xerces-C++ converts these values as shown below:
  68. </P>
  69. <TABLE border="0" cellpadding="2" cellspacing="2" width="100%">
  70. <TR>
  71. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">Values in range&nbsp;
  72. </FONT></TD>
  73. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">Values converted&nbsp;
  74. </FONT></TD>
  75. </TR>
  76. <TR>
  77. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">less than -2<SUP>24</SUP> * 2<SUP>104</SUP> (approx -3.402823669e+38) &nbsp;
  78. </FONT></TD>
  79. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">-INF&nbsp;
  80. </FONT></TD>
  81. </TR>
  82. <TR>
  83. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">greater than -1 * 2<SUP>-149</SUP> (approx -1.401298464e-45) and less than -0 &nbsp;
  84. </FONT></TD>
  85. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">-0&nbsp;
  86. </FONT></TD>
  87. </TR>
  88. <TR>
  89. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">greater than +0 and less than +1 * 2<SUP>-149</SUP> (approx +1.401298464e-45) &nbsp;
  90. </FONT></TD>
  91. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">+0&nbsp;
  92. </FONT></TD>
  93. </TR>
  94. <TR>
  95. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">greater than +2<SUP>24</SUP> * 2<SUP>104</SUP> (approx 3.402823669e+38) &nbsp;
  96. </FONT></TD>
  97. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">+INF&nbsp;
  98. </FONT></TD>
  99. </TR>
  100. </TABLE>
  101. <P>
  102. The effect of this conversion would invalidate an instance data, for example,
  103. &quot;1.1e-46&quot;, of a data type derived from float, with minExclusive value '+0',
  104. since &quot;1.1e-46&quot; is converted to &quot;+0&quot;, which is the same as the minExclusive.
  105. </P>
  106. </FONT></TD></TR></TABLE><BR>
  107. <TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="ffffff" colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>out-of-bound double values</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">
  108. <P>
  109. Similarly, Xerces-C++ converts double values as shown below (the values
  110. depend on the system specific values of DBL_MAX and DBL_MIN):
  111. </P>
  112. <TABLE border="0" cellpadding="2" cellspacing="2" width="100%">
  113. <TR>
  114. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">Values in range&nbsp;
  115. </FONT></TD>
  116. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">Values converted&nbsp;
  117. </FONT></TD>
  118. </TR>
  119. <TR>
  120. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">less than -DBL_MAX (approx -1.7976931348623158e+308) &nbsp;
  121. </FONT></TD>
  122. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">-INF&nbsp;
  123. </FONT></TD>
  124. </TR>
  125. <TR>
  126. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">greater than -DBL_MIN (approx -2.2250738585072014e-308) and less than -0 &nbsp;
  127. </FONT></TD>
  128. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">-0&nbsp;
  129. </FONT></TD>
  130. </TR>
  131. <TR>
  132. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">greater than +0 and less than +DBL_MIN (approx +2.2250738585072014e-308) &nbsp;
  133. </FONT></TD>
  134. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">+0&nbsp;
  135. </FONT></TD>
  136. </TR>
  137. <TR>
  138. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">greater than +DBL_MAX (approx +1.7976931348623158e+308) &nbsp;
  139. </FONT></TD>
  140. <TD align="" bgcolor="#a0ddf0" colspan="1" rowspan="1" valign="top"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">+INF&nbsp;
  141. </FONT></TD>
  142. </TR>
  143. </TABLE>
  144. </FONT></TD></TR></TABLE><BR>
  145. </FONT></TD></TR></TABLE><BR>
  146. <A name="usage"><!--anchor--></A>
  147. <TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="ffffff" colspan="2" width="494"><TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="492"><FONT color="#ffffff" face="arial,helvetica,sanserif" size="+1"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Usage</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="484"><FONT color="#000000" face="arial,helvetica,sanserif">
  148. <P>Below is an example that shows how to turn on schema processing in DOMParser
  149. (default is off). Note that you must also turn on namespace support
  150. (default is off) for schema processing.
  151. </P>
  152. <DIV align="left"><TABLE border="0" cellpadding="0" cellspacing="4" width="464"><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#ffffff" width="462"><FONT size="-1"><PRE>// Instantiate the DOM parser.
  153. XercesDOMParser parser;
  154. parser.setDoNamespaces(true);
  155. parser.setDoSchema(true);
  156. parser.parse(xmlFile);
  157. </PRE></FONT></TD><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></DIV>
  158. <P>Usage in SAXParser is similar, please refer to the SAXCount
  159. sample program for further reference.
  160. </P>
  161. <P>Below is an example that shows how to turn on schema processing in SAX2XMLReader
  162. (default is on). Note that namespace must be on (default is on) as well.
  163. </P>
  164. <DIV align="left"><TABLE border="0" cellpadding="0" cellspacing="4" width="464"><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#ffffff" width="462"><FONT size="-1"><PRE>SAX2XMLReader* parser = XMLReaderFactory::createXMLReader();
  165. parser-&gt;setFeature(XMLUni::fgSAX2CoreNameSpaces, true);
  166. parser-&gt;setFeature(XMLUni::fgXercesSchema, true);
  167. parser-&gt;parse(xmlFile);
  168. </PRE></FONT></TD><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></DIV>
  169. </FONT></TD></TR></TABLE><BR>
  170. <A name="associate"><!--anchor--></A>
  171. <TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="ffffff" colspan="2" width="494"><TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="492"><FONT color="#ffffff" face="arial,helvetica,sanserif" size="+1"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Associating Schema Grammar with instance document</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="492"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="484"><FONT color="#000000" face="arial,helvetica,sanserif">
  172. <P>Schema grammars can be associated with instance documents in three ways.
  173. </P>
  174. <TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="ffffff" colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Specifying Schema Grammar through attributes in the instance document</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">
  175. <P>If schema grammar was not specified externally through methods,
  176. then each instance document that uses XML Schema grammars must specify the location of
  177. the grammars it uses by using an xsi:schemaLocation attribute if they use
  178. namespaces, and xsi:noNamespaceSchemaLocation attribute otherwise.
  179. </P>
  180. <P>Here is an example with no target namespace:
  181. </P>
  182. <DIV align="left"><TABLE border="0" cellpadding="0" cellspacing="4" width="464"><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#ffffff" width="462"><FONT size="-1"><PRE>&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
  183. &lt;personnel xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
  184. xsi:noNamespaceSchemaLocation='personal.xsd'&gt;
  185. ...
  186. &lt;/personnel&gt;
  187. </PRE></FONT></TD><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></DIV>
  188. <P>Here is an example with a target namespace. Note that it is an error to specify a
  189. different namespace in xsi:schemaLocation attribute than the target namespace
  190. defined in the Schema.
  191. </P>
  192. <DIV align="left"><TABLE border="0" cellpadding="0" cellspacing="4" width="464"><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#ffffff" width="462"><FONT size="-1"><PRE>&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
  193. &lt;personnel xmlns=&quot;http://my.com&quot;
  194. xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
  195. xsi:schemaLocation=&quot;http://my.com personal.xsd http://my2.com test2.xsd&quot;&gt;
  196. ...
  197. &lt;/personnel&gt;
  198. </PRE></FONT></TD><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></DIV>
  199. </FONT></TD></TR></TABLE><BR>
  200. <TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="ffffff" colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Specifying Schema Grammar through method calls</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">
  201. <P>An application developer may associate schemas with instance documents through
  202. methods <CODE><FONT face="courier, monospaced">setExternalSchemaLocation</FONT></CODE> if they use namespaces, and
  203. <CODE><FONT face="courier, monospaced">setExternalNoNamespaceSchemaLocation</FONT></CODE> otherwise.
  204. (For SAX2XMLReader, use the properties:
  205. &quot;http://apache.org/xml/properties/schema/external-schemaLocation&quot; and
  206. &quot;http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation&quot;)
  207. </P>
  208. <P>Here is an example with no target namespace:
  209. </P>
  210. <DIV align="left"><TABLE border="0" cellpadding="0" cellspacing="4" width="464"><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#ffffff" width="462"><FONT size="-1"><PRE>
  211. // Instantiate the DOM parser.
  212. XercesDOMParser parser;
  213. parser.setDoNamespaces(true);
  214. parser.setDoSchema(true);
  215. parser.setExternalNoNamespaceSchemaLocation(&quot;personal.xsd&quot;);
  216. parser.parse(&quot;test.xml&quot;);
  217. // Instantiate the SAX2 XMLReader.
  218. SAX2XMLReader* parser = XMLReaderFactory::createXMLReader();
  219. XMLCh* propertyValue = XMLString::transcode(&quot;personal.xsd&quot;);
  220. ArrayJanitor&lt;XMLCh&gt; janValue(propertyValue);
  221. parser-&gt;setProperty(
  222. XMLUni::fgXercesSchemaExternalNoNameSpaceSchemaLocation,
  223. propertyValue);
  224. parser.parse(&quot;test.xml&quot;);
  225. </PRE></FONT></TD><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></DIV>
  226. <P>Here is an example with a target namespace. Note that it is an error to specify a
  227. different namespace in <CODE><FONT face="courier, monospaced">setExternalSchemaLocation</FONT></CODE> than the target
  228. namespace defined in the Schema.
  229. </P>
  230. <DIV align="left"><TABLE border="0" cellpadding="0" cellspacing="4" width="464"><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#ffffff" width="462"><FONT size="-1"><PRE>
  231. // Instantiate the DOM parser.
  232. XercesDOMParser parser;
  233. parser.setDoNamespaces(true);
  234. parser.setDoSchema(true);
  235. parser.setExternalSchemaLocation(
  236. &quot;http://my.com personal.xsd http://my2.com test2.xsd&quot;);
  237. parser.parse(&quot;test.xml&quot;);
  238. // Instantiate the SAX2 XMLReader.
  239. SAX2XMLReader* parser = XMLReaderFactory::createXMLReader();
  240. XMLCh* propertyValue = XMLString::transcode(
  241. &quot;http://my.com personal.xsd http://my2.com test2.xsd&quot;);
  242. ArrayJanitor&lt;XMLCh&gt; janValue(propertyValue);
  243. parser-&gt;setProperty(
  244. XMLUni::fgXercesSchemaExternalSchemaLocation,
  245. propertyValue);
  246. parser.parse(&quot;test.xml&quot;);
  247. </PRE></FONT></TD><TD bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></DIV>
  248. </FONT></TD></TR></TABLE><BR>
  249. <TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="ffffff" colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Pre-parsing and Caching Schema Grammar</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif" size="-1">
  250. <P>An application developer may also pre-parse and
  251. cache the grammar corresponding to the XML document
  252. namespace as described in the
  253. <A href="program-others-3.html#GrammarCache">Pre-parsing
  254. Grammar and Grammar Caching</A> section of the
  255. Xerces-C++ Programming Guide.</P>
  256. </FONT></TD></TR></TABLE><BR>
  257. </FONT></TD></TR></TABLE><BR>
  258. </TD></TR></TABLE></TD></TR></TABLE><BR><TABLE border="0" cellpadding="0" cellspacing="0" width="620"><TR><TD bgcolor="#0086b2"><IMG height="1" src="resources/dot.gif" width="1"></TD></TR><TR><TD align="center"><FONT color="#0086b2" size="-1"><I>
  259. Copyright &copy; 1999-2015 The Apache Software Foundation.
  260. All Rights Reserved.
  261. </I></FONT></TD></TR></TABLE></BODY></HTML>