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-<br clear="all"><div class="SECT1">
-<h1 class="SECT1"><a name="XMLSEC-NOTES-NEW-CRYPTO-KLASSES">Klasses and objects.</a></h1>
+<div class="sect1">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="xmlsec-notes-new-crypto-klasses"></a>Klasses and objects.</h2></div></div></div>
<p>The XML Security Library is written in C but it uses some OOP techniques:
the objects in the library have "klasses" and there is "klasses" inheritance.
- (see <a href="xmlsec-signature-klasses.html">signature</a> and
- <a href="xmlsec-encryption-klasses.html">encryption</a> klasses
+ (see <a class="link" href="xmlsec-signature-klasses.html" title="APPENDIX A. XML Security Library Signature Klasses.">signature</a> and
+ <a class="link" href="xmlsec-encryption-klasses.html" title="APPENDIX B. XML Security Library Encryption Klasses.">encryption</a> klasses
diagrams). The "klass" is different from C++ "class" (btw, this is
one of the reasons why it is spelled differently). The idea of "klasses"
used in XML Security Library are close to one in the GLIB/GTK/GNOME
@@ -121,16 +34,16 @@ table.CALSTABLE > tbody > tr:nth-child(1) > td:nth-child(1) {
</p>
<p>XML Security Library "klass" includes three main parts:
</p>
-<p></p>
-<ul>
-<li>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
<p>"Klass" declaration structure that defines "klass" interfaces
and global constant data (for example, the human-readable name of
the "klass").
</p>
-<div class="EXAMPLE">
-<a name="AEN716"></a><p><b>Example 6. Base transform "klass" and its child XPath transform "klass" structure.</b></p>
-<pre class="PROGRAMLISTING">struct _xmlSecTransformKlass {
+<div class="example">
+<a name="id-1.2.14.5.3.1.1.1.1"></a><p class="title"><b>Example 30. Base transform "klass" and its child XPath transform "klass" structure.</b></p>
+<div class="example-contents"><pre class="programlisting">
+struct _xmlSecTransformKlass {
/* data */
size_t klassSize;
size_t objSize;
@@ -166,17 +79,20 @@ static xmlSecTransformKlass xmlSecTransformXPathKlass = {
...
};
- </pre>
+ </pre></div>
</div>
- </li>
-<li>
+<p><br class="example-break">
+ </p>
+</li>
+<li class="listitem">
<p>"Klass" id which is simply a pointer to the "klass"
declaration strucutre. "Klass" id is used to bind "klass" objects
to the "klass" declaration and to pass "klass" strucutre to functions.
</p>
-<div class="EXAMPLE">
-<a name="AEN721"></a><p><b>Example 7. Base transform "klass" id declaration and its child XPath transform "klass" id implementation.</b></p>
-<pre class="PROGRAMLISTING">typedef const struct _xmlSecTransformKlass xmlSecTransformKlass, *xmlSecTransformId;
+<div class="example">
+<a name="id-1.2.14.5.3.1.2.1.1"></a><p class="title"><b>Example 31. Base transform "klass" id declaration and its child XPath transform "klass" id implementation.</b></p>
+<div class="example-contents"><pre class="programlisting">
+typedef const struct _xmlSecTransformKlass xmlSecTransformKlass, *xmlSecTransformId;
...
@@ -188,17 +104,20 @@ xmlSecTransformId
xmlSecTransformXPathGetKlass(void) {
return(&amp;xmlSecTransformXPathKlass);
}
- </pre>
+ </pre></div>
</div>
- </li>
-<li>
+<p><br class="example-break">
+ </p>
+</li>
+<li class="listitem">
<p>"Klass" object structure that contains object specific
data. The child object specific data are placed after the parent "klass"
object data.
</p>
-<div class="EXAMPLE">
-<a name="AEN726"></a><p><b>Example 8. Base transform object strucutre and its child XPath transform object.</b></p>
-<pre class="PROGRAMLISTING">struct _xmlSecTransform {
+<div class="example">
+<a name="id-1.2.14.5.3.1.3.1.1"></a><p class="title"><b>Example 32. Base transform object strucutre and its child XPath transform object.</b></p>
+<div class="example-contents"><pre class="programlisting">
+struct _xmlSecTransform {
xmlSecTransformId id;
xmlSecTransformOperation operation;
xmlSecTransformStatus status;
@@ -226,15 +145,16 @@ xmlSecTransformXPathGetKlass(void) {
((xmlSecTransformCheckSize((transform), xmlSecXPathTransformSize)) ? \
(xmlSecPtrListPtr)(((unsigned char*)(transform)) + sizeof(xmlSecTransform)) : \
(xmlSecPtrListPtr)NULL)
- </pre>
+ </pre></div>
</div>
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-<td align="right"><a accesskey="n" href="xmlsec-notes-new-crypto-transforms.html"><b>Cryptographic transforms. &gt;&gt;&gt;</b></a></td>
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+<p><br class="example-break">
+ </p>
+</li>
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