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LoaderClassPath.html 15KB

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  120. <h2 title="Class LoaderClassPath" class="title">Class LoaderClassPath</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.LoaderClassPath</li>
  128. </ul>
  129. </li>
  130. </ul>
  131. <div class="description">
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  134. <dl>
  135. <dt>All Implemented Interfaces:</dt>
  136. <dd><code><a href="../javassist/ClassPath.html" title="interface in javassist">ClassPath</a></code></dd>
  137. </dl>
  138. <hr>
  139. <pre>public class <span class="typeNameLabel">LoaderClassPath</span>
  140. extends java.lang.Object
  141. implements <a href="../javassist/ClassPath.html" title="interface in javassist">ClassPath</a></pre>
  142. <div class="block">A class search-path representing a class loader.
  143. <p>It is used for obtaining a class file from the given
  144. class loader by <code>getResourceAsStream()</code>.
  145. The <code>LoaderClassPath</code> refers to the class loader through
  146. <code>WeakReference</code>. If the class loader is garbage collected,
  147. the other search pathes are examined.
  148. <p>The given class loader must have both <code>getResourceAsStream()</code>
  149. and <code>getResource()</code>.
  150. <p>Class files in a named module are private to that module.
  151. This method cannot obtain class files in named modules.
  152. </p></div>
  153. <dl>
  154. <dt><span class="simpleTagLabel">Author:</span></dt>
  155. <dd><a href="mailto:bill@jboss.org">Bill Burke</a>, Shigeru Chiba</dd>
  156. <dt><span class="seeLabel">See Also:</span></dt>
  157. <dd><a href="../javassist/ClassPool.html#insertClassPath-javassist.ClassPath-"><code>ClassPool.insertClassPath(ClassPath)</code></a>,
  158. <a href="../javassist/ClassPool.html#appendClassPath-javassist.ClassPath-"><code>ClassPool.appendClassPath(ClassPath)</code></a>,
  159. <a href="../javassist/ClassClassPath.html" title="class in javassist"><code>ClassClassPath</code></a></dd>
  160. </dl>
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  172. <h3>Constructor Summary</h3>
  173. <table class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
  174. <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
  175. <tr>
  176. <th class="colFirst" scope="col">Constructor</th>
  177. <th class="colLast" scope="col">Description</th>
  178. </tr>
  179. <tr class="altColor">
  180. <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="../javassist/LoaderClassPath.html#LoaderClassPath-java.lang.ClassLoader-">LoaderClassPath</a></span>&#8203;(java.lang.ClassLoader&nbsp;cl)</code></th>
  181. <td class="colLast">
  182. <div class="block">Creates a search path representing a class loader.</div>
  183. </td>
  184. </tr>
  185. </table>
  186. </li>
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  195. <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>
  196. <tr>
  197. <th class="colFirst" scope="col">Modifier and Type</th>
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  199. <th class="colLast" scope="col">Description</th>
  200. </tr>
  201. <tr id="i0" class="altColor">
  202. <td class="colFirst"><code>java.net.URL</code></td>
  203. <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../javassist/LoaderClassPath.html#find-java.lang.String-">find</a></span>&#8203;(java.lang.String&nbsp;classname)</code></th>
  204. <td class="colLast">
  205. <div class="block">Obtains the URL of the specified class file.</div>
  206. </td>
  207. </tr>
  208. <tr id="i1" class="rowColor">
  209. <td class="colFirst"><code>java.io.InputStream</code></td>
  210. <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../javassist/LoaderClassPath.html#openClassfile-java.lang.String-">openClassfile</a></span>&#8203;(java.lang.String&nbsp;classname)</code></th>
  211. <td class="colLast">
  212. <div class="block">Obtains a class file from the class loader.</div>
  213. </td>
  214. </tr>
  215. <tr id="i2" class="altColor">
  216. <td class="colFirst"><code>java.lang.String</code></td>
  217. <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../javassist/LoaderClassPath.html#toString--">toString</a></span>()</code></th>
  218. <td class="colLast">&nbsp;</td>
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  225. <h3>Methods inherited from class&nbsp;java.lang.Object</h3>
  226. <code>equals, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
  227. </ul>
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  241. <h3>Constructor Detail</h3>
  242. <a name="LoaderClassPath-java.lang.ClassLoader-">
  243. <!-- -->
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  246. <li class="blockList">
  247. <h4>LoaderClassPath</h4>
  248. <pre>public&nbsp;LoaderClassPath&#8203;(java.lang.ClassLoader&nbsp;cl)</pre>
  249. <div class="block">Creates a search path representing a class loader.</div>
  250. </li>
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  260. <a name="toString--">
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  264. <li class="blockList">
  265. <h4>toString</h4>
  266. <pre>public&nbsp;java.lang.String&nbsp;toString()</pre>
  267. <dl>
  268. <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
  269. <dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
  270. </dl>
  271. </li>
  272. </ul>
  273. <a name="openClassfile-java.lang.String-">
  274. <!-- -->
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  276. <ul class="blockList">
  277. <li class="blockList">
  278. <h4>openClassfile</h4>
  279. <pre>public&nbsp;java.io.InputStream&nbsp;openClassfile&#8203;(java.lang.String&nbsp;classname)
  280. throws <a href="../javassist/NotFoundException.html" title="class in javassist">NotFoundException</a></pre>
  281. <div class="block">Obtains a class file from the class loader.
  282. This method calls <code>getResourceAsStream(String)</code>
  283. on the class loader.</div>
  284. <dl>
  285. <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
  286. <dd><code><a href="../javassist/ClassPath.html#openClassfile-java.lang.String-">openClassfile</a></code>&nbsp;in interface&nbsp;<code><a href="../javassist/ClassPath.html" title="interface in javassist">ClassPath</a></code></dd>
  287. <dt><span class="paramLabel">Parameters:</span></dt>
  288. <dd><code>classname</code> - a fully-qualified class name</dd>
  289. <dt><span class="returnLabel">Returns:</span></dt>
  290. <dd>the input stream for reading a class file</dd>
  291. <dt><span class="throwsLabel">Throws:</span></dt>
  292. <dd><code><a href="../javassist/NotFoundException.html" title="class in javassist">NotFoundException</a></code></dd>
  293. <dt><span class="seeLabel">See Also:</span></dt>
  294. <dd><a href="../javassist/Translator.html" title="interface in javassist"><code>Translator</code></a></dd>
  295. </dl>
  296. </li>
  297. </ul>
  298. <a name="find-java.lang.String-">
  299. <!-- -->
  300. </a>
  301. <ul class="blockListLast">
  302. <li class="blockList">
  303. <h4>find</h4>
  304. <pre>public&nbsp;java.net.URL&nbsp;find&#8203;(java.lang.String&nbsp;classname)</pre>
  305. <div class="block">Obtains the URL of the specified class file.
  306. This method calls <code>getResource(String)</code>
  307. on the class loader.</div>
  308. <dl>
  309. <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
  310. <dd><code><a href="../javassist/ClassPath.html#find-java.lang.String-">find</a></code>&nbsp;in interface&nbsp;<code><a href="../javassist/ClassPath.html" title="interface in javassist">ClassPath</a></code></dd>
  311. <dt><span class="paramLabel">Parameters:</span></dt>
  312. <dd><code>classname</code> - a fully-qualified class name.</dd>
  313. <dt><span class="returnLabel">Returns:</span></dt>
  314. <dd>null if the class file could not be found.</dd>
  315. </dl>
  316. </li>
  317. </ul>
  318. </li>
  319. </ul>
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  389. <p class="legalCopy"><small><i>Javassist, a Java-bytecode translator toolkit.<br>
  390. Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.</i></small></p>
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