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javassist/html/javassist/ByteArrayClassPath.html

ByteArrayClassPath.html 13KB
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  1. <!DOCTYPE HTML>

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  6. <title>ByteArrayClassPath (Javassist API)</title>

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  8. <meta name="dc.created" content="2021-05-08">

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  118. <div class="header">

  119. <div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">javassist</a></div>

  120. <h2 title="Class ByteArrayClassPath" class="title">Class ByteArrayClassPath</h2>

  121. </div>

  122. <div class="contentContainer">

  123. <ul class="inheritance">

  124. <li>java.lang.Object</li>

  125. <li>

  126. <ul class="inheritance">

  127. <li>javassist.ByteArrayClassPath</li>

  128. </ul>

  129. </li>

  130. </ul>

  131. <div class="description">

  132. <ul class="blockList">

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  134. <dl>

  135. <dt>All Implemented Interfaces:</dt>

  136. <dd><code><a href="ClassPath.html" title="interface in javassist">ClassPath</a></code></dd>

  137. </dl>

  138. <hr>

  139. <pre>public class <span class="typeNameLabel">ByteArrayClassPath</span>

  140. extends java.lang.Object

  141. implements <a href="ClassPath.html" title="interface in javassist">ClassPath</a></pre>

  142. <div class="block">A <code>ByteArrayClassPath</code> contains bytes that is served as

  143.  a class file to a <code>ClassPool</code>.  It is useful to convert

  144.  a byte array to a <code>CtClass</code> object.

  145. 

  146.  <p>For example, if you want to convert a byte array <code>b</code>

  147.  into a <code>CtClass</code> object representing the class with a name

  148.  <code>classname</code>, then do as following:

  149. 

  150.  <pre>

  151.  ClassPool cp = ClassPool.getDefault();

  152.  cp.insertClassPath(new ByteArrayClassPath(classname, b));

  153.  CtClass cc = cp.get(classname);

  154.  </pre>

  155. 

  156.  <p>The <code>ClassPool</code> object <code>cp</code> uses the created

  157.  <code>ByteArrayClassPath</code> object as the source of the class file.

  158. 

  159.  <p>A <code>ByteArrayClassPath</code> must be instantiated for every

  160.  class.  It contains only a single class file.</div>

  161. <dl>

  162. <dt><span class="seeLabel">See Also:</span></dt>

  163. <dd><a href="ClassPath.html" title="interface in javassist"><code>ClassPath</code></a>, 

  164. <a href="ClassPool.html#insertClassPath(javassist.ClassPath)"><code>ClassPool.insertClassPath(ClassPath)</code></a>, 

  165. <a href="ClassPool.html#appendClassPath(javassist.ClassPath)"><code>ClassPool.appendClassPath(ClassPath)</code></a>, 

  166. <a href="ClassPool.html#makeClass(java.io.InputStream)"><code>ClassPool.makeClass(InputStream)</code></a></dd>

  167. </dl>

  168. </li>

  169. </ul>

  170. </div>

  171. <div class="summary">

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  180. <h3>Constructor Summary</h3>

  181. <table class="memberSummary">

  182. <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>

  183. <tr>

  184. <th class="colFirst" scope="col">Constructor</th>

  185. <th class="colLast" scope="col">Description</th>

  186. </tr>

  187. <tr class="altColor">

  188. <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String,byte%5B%5D)">ByteArrayClassPath</a></span>&#8203;(java.lang.String&nbsp;name,

  189.                   byte[]&nbsp;classfile)</code></th>

  190. <td class="colLast">&nbsp;</td>

  191. </tr>

  192. </table>

  193. </li>

  194. </ul>

  195. </section>

  196. <!-- ========== METHOD SUMMARY =========== -->

  197. <section role="region">

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  202. <h3>Method Summary</h3>

  203. <table class="memberSummary">

  204. <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>

  205. <tr>

  206. <th class="colFirst" scope="col">Modifier and Type</th>

  207. <th class="colSecond" scope="col">Method</th>

  208. <th class="colLast" scope="col">Description</th>

  209. </tr>

  210. <tr id="i0" class="altColor">

  211. <td class="colFirst"><code>java.net.URL</code></td>

  212. <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#find(java.lang.String)">find</a></span>&#8203;(java.lang.String&nbsp;classname)</code></th>

  213. <td class="colLast">

  214. <div class="block">Obtains the URL.</div>

  215. </td>

  216. </tr>

  217. <tr id="i1" class="rowColor">

  218. <td class="colFirst"><code>java.io.InputStream</code></td>

  219. <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#openClassfile(java.lang.String)">openClassfile</a></span>&#8203;(java.lang.String&nbsp;classname)</code></th>

  220. <td class="colLast">

  221. <div class="block">Opens the class file.</div>

  222. </td>

  223. </tr>

  224. <tr id="i2" class="altColor">

  225. <td class="colFirst"><code>java.lang.String</code></td>

  226. <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th>

  227. <td class="colLast">&nbsp;</td>

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  229. </table>

  230. <ul class="blockList">

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  234. <h3>Methods inherited from class&nbsp;java.lang.Object</h3>

  235. <code>equals, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>

  236. </ul>

  237. </li>

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  239. </section>

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  254. <!--   -->

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  256. <ul class="blockListLast">

  257. <li class="blockList">

  258. <h4>ByteArrayClassPath</h4>

  259. <pre>public&nbsp;ByteArrayClassPath&#8203;(java.lang.String&nbsp;name,

  260.                           byte[]&nbsp;classfile)</pre>

  261. </li>

  262. </ul>

  263. </li>

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  265. </section>

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  278. <h4>toString</h4>

  279. <pre class="methodSignature">public&nbsp;java.lang.String&nbsp;toString()</pre>

  280. <dl>

  281. <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>

  282. <dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>

  283. </dl>

  284. </li>

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  287. <!--   -->

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  289. <ul class="blockList">

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  291. <h4>openClassfile</h4>

  292. <pre class="methodSignature">public&nbsp;java.io.InputStream&nbsp;openClassfile&#8203;(java.lang.String&nbsp;classname)</pre>

  293. <div class="block">Opens the class file.</div>

  294. <dl>

  295. <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>

  296. <dd><code><a href="ClassPath.html#openClassfile(java.lang.String)">openClassfile</a></code>&nbsp;in interface&nbsp;<code><a href="ClassPath.html" title="interface in javassist">ClassPath</a></code></dd>

  297. <dt><span class="paramLabel">Parameters:</span></dt>

  298. <dd><code>classname</code> - a fully-qualified class name</dd>

  299. <dt><span class="returnLabel">Returns:</span></dt>

  300. <dd>the input stream for reading a class file</dd>

  301. <dt><span class="seeLabel">See Also:</span></dt>

  302. <dd><a href="Translator.html" title="interface in javassist"><code>Translator</code></a></dd>

  303. </dl>

  304. </li>

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  307. <!--   -->

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  312. <pre class="methodSignature">public&nbsp;java.net.URL&nbsp;find&#8203;(java.lang.String&nbsp;classname)</pre>

  313. <div class="block">Obtains the URL.</div>

  314. <dl>

  315. <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>

  316. <dd><code><a href="ClassPath.html#find(java.lang.String)">find</a></code>&nbsp;in interface&nbsp;<code><a href="ClassPath.html" title="interface in javassist">ClassPath</a></code></dd>

  317. <dt><span class="paramLabel">Parameters:</span></dt>

  318. <dd><code>classname</code> - a fully-qualified class name.</dd>

  319. <dt><span class="returnLabel">Returns:</span></dt>

  320. <dd>null if the specified class file could not be found.</dd>

  321. </dl>

  322. </li>

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  392. <p class="legalCopy"><small><i>Javassist, a Java-bytecode translator toolkit.<br>

  393. Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.</i></small></p>

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