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        <a href="xmlsec-module.html">Module&nbsp;xmlsec</a> ::
        Class&nbsp;Transform
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<!-- =========== START OF CLASS DESCRIPTION =========== -->
<h2 class="class">Class Transform</h2>

<hr/>


<!-- =========== START OF METHOD SUMMARY =========== -->
<table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="summary">
  <th colspan="2">Method Summary</th></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="xmlsec.Transform-class.html#__init__" class="summary-sig-name"><code>__init__</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>_obj</span>)</span></code>
<br />
Creates new transform of the id klass.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><a name="__getattr__"></a><span class="summary-sig"><span class="summary-sig-name">__getattr__</span>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>name</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><a name="__setattr__"></a><span class="summary-sig"><span class="summary-sig-name">__setattr__</span>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>name</span>,
          <span class=summary-sig-arg>value</span>)</span></code>
</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="xmlsec.Transform-class.html#base64SetLineSize" class="summary-sig-name"><code>base64SetLineSize</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>lineSize</span>)</span></code>
<br />
Sets the max line size to lineSize for an BASE64 encode transform.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="xmlsec.Transform-class.html#destroy" class="summary-sig-name"><code>destroy</code></a>(<span class=summary-sig-arg>self</span>)</span></code>
<br />
Destroys transform.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="xmlsec.Transform-class.html#nodeRead" class="summary-sig-name"><code>nodeRead</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>usage</span>,
          <span class=summary-sig-arg>transformCtx</span>)</span></code>
<br />
Reads transform from the node as follows:
1) reads 'Algorithm' attribute;
2) checks the lists of known and allowed transforms;
3) calls transform's create method;
4) calls transform's read transform node method.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="xmlsec.Transform-class.html#setKey" class="summary-sig-name"><code>setKey</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>key</span>)</span></code>
<br />
Sets the transform's key.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="xmlsec.Transform-class.html#setKeyReq" class="summary-sig-name"><code>setKeyReq</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>keyReq</span>)</span></code>
<br />
Sets the key requirements for transform in the keyReq.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="xmlsec.Transform-class.html#visa3DHackSetID" class="summary-sig-name"><code>visa3DHackSetID</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>id</span>)</span></code>
<br />
Sets the ID value for an Visa3DHack transform.</td></tr>
<tr><td align="right" valign="top" width="15%"><font size="-1">&nbsp;</font></td>
  <td><code><span class="summary-sig"><a href="xmlsec.Transform-class.html#xpointerSetExpr" class="summary-sig-name"><code>xpointerSetExpr</code></a>(<span class=summary-sig-arg>self</span>,
          <span class=summary-sig-arg>expr</span>,
          <span class=summary-sig-arg>nodeSetType</span>,
          <span class=summary-sig-arg>hereNode</span>)</span></code>
<br />
Sets the XPointer expression for an XPointer transform.</td></tr>
</table><br />


<!-- =========== START OF METHOD DETAILS =========== -->
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  <th colspan="2">Method Details</th></tr>
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<a name="__init__"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">__init__</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>_obj</span>=<span class=sig-default>None</span>)</span>
    <br /><i>(Constructor)</i>
  </h3>
<pre class="literalblock">
Creates new transform of the id klass. The caller is responsible for
destroying returned tansform using destroy method.
id      : the transform id to create.
Returns : newly created transform or None if an error occurs.
</pre>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>

<a name="base64SetLineSize"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">base64SetLineSize</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>lineSize</span>)</span>
  </h3>
<pre class="literalblock">
Sets the max line size to lineSize for an BASE64 encode transform.
lineSize : the new max line size.
</pre>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>

<a name="destroy"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">destroy</span>(<span class=sig-arg>self</span>)</span>
  </h3>
<pre class="literalblock">
Destroys transform.
</pre>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>

<a name="nodeRead"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">nodeRead</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>usage</span>,
          <span class=sig-arg>transformCtx</span>)</span>
  </h3>
<pre class="literalblock">
Reads transform from the node as follows:
1) reads 'Algorithm' attribute;
2) checks the lists of known and allowed transforms;
3) calls transform's create method;
4) calls transform's read transform node method.
usage        : the transform usage (signature, encryption, ...).
transformCtx : the transform's chaing processing context.
Returns      : newly created transform or None if an error occurs.
</pre>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>

<a name="setKey"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">setKey</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>key</span>)</span>
  </h3>
<pre class="literalblock">
Sets the transform's key.
key     : the key.
Returns : 0 on success or a negative value otherwise.
</pre>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>

<a name="setKeyReq"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">setKeyReq</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>keyReq</span>)</span>
  </h3>
<pre class="literalblock">
Sets the key requirements for transform in the keyReq.
keyReq  : the keys requirements object.
Returns : 0 on success or a negative value otherwise.
</pre>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>

<a name="visa3DHackSetID"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">visa3DHackSetID</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>id</span>)</span>
  </h3>
<pre class="literalblock">
Sets the ID value for an Visa3DHack transform.
id      : the ID value.
Returns : 0 on success or a negative value if an error occurs.
</pre>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>

<a name="xpointerSetExpr"></a>
<table width="100%" class="func-details" bgcolor="#e0e0e0"><tr><td>
  <h3><span class="sig"><span class="sig-name">xpointerSetExpr</span>(<span class=sig-arg>self</span>,
          <span class=sig-arg>expr</span>,
          <span class=sig-arg>nodeSetType</span>,
          <span class=sig-arg>hereNode</span>)</span>
  </h3>
<pre class="literalblock">
Sets the XPointer expression for an XPointer transform.
expr        : the XPointer expression.
nodeSetType : the type of evaluated XPointer expression.
hereNode    : the pointer to 'here' node.
Returns     : 0 on success or a negative value if an error occurs.
</pre>
  <dl><dt></dt><dd>
  </dd></dl>
</td></tr></table>
<br />


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