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| <li>Summary: </li> |
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| <li>Constr | </li> |
| <li><a href="#method.summary">Method</a></li> |
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| <li>Field | </li> |
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| <div class="subTitle">org.apache.velocity.util</div> |
| <h2 title="Class ClassUtils" class="title">Class ClassUtils</h2> |
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| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.velocity.util.ClassUtils</li> |
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| <pre>public class <span class="typeNameLabel">ClassUtils</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Simple utility functions for manipulating classes and resources |
| from the classloader.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>1.5</dd> |
| <dt><span class="simpleTagLabel">Version:</span></dt> |
| <dd>$Id$</dd> |
| <dt><span class="simpleTagLabel">Author:</span></dt> |
| <dd><a href="mailto:wglass@apache.org">Will Glass-Husain</a></dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/velocity/util/ClassUtils.html#getClass-java.lang.String-">getClass</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> clazz)</code> |
| <div class="block">Return the specified class.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/velocity/util/introspection/VelMethod.html" title="interface in org.apache.velocity.util.introspection">VelMethod</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/velocity/util/ClassUtils.html#getMethod-java.lang.String-java.lang.Object:A-java.lang.Class:A-java.lang.Object-org.apache.velocity.context.InternalContextAdapter-org.apache.velocity.runtime.parser.node.SimpleNode-boolean-">getMethod</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> methodName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[] params, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?>[] paramClasses, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> o, |
| <a href="../../../../org/apache/velocity/context/InternalContextAdapter.html" title="interface in org.apache.velocity.context">InternalContextAdapter</a> context, |
| <a href="../../../../org/apache/velocity/runtime/parser/node/SimpleNode.html" title="class in org.apache.velocity.runtime.parser.node">SimpleNode</a> node, |
| boolean strictRef)</code> |
| <div class="block">Lookup a VelMethod object given the method signature that is specified in |
| the passed in parameters.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/velocity/util/ClassUtils.html#getNewInstance-java.lang.String-">getNewInstance</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> clazz)</code> |
| <div class="block">Return a new instance of the given class.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/velocity/util/ClassUtils.html#getResourceAsStream-java.lang.Class-java.lang.String-">getResourceAsStream</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?> claz, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Finds a resource with the given name.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ METHOD DETAIL ========== --> |
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| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="getClass-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getClass</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?> getClass(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> clazz) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassNotFoundException.html?is-external=true" title="class or interface in java.lang">ClassNotFoundException</a></pre> |
| <div class="block">Return the specified class. Checks the ThreadContext classloader first, |
| then uses the System classloader. Should replace all calls to |
| <code>Class.forName( claz )</code> (which only calls the System class |
| loader) when the class might be in a different classloader (e.g. in a |
| webapp).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>clazz</code> - the name of the class to instantiate</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the requested Class object</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassNotFoundException.html?is-external=true" title="class or interface in java.lang">ClassNotFoundException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- --> |
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| <h4>getNewInstance</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> getNewInstance(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> clazz) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassNotFoundException.html?is-external=true" title="class or interface in java.lang">ClassNotFoundException</a>, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang">IllegalAccessException</a>, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang">InstantiationException</a></pre> |
| <div class="block">Return a new instance of the given class. Checks the ThreadContext |
| classloader first, then uses the System classloader. Should replace all |
| calls to <code>Class.forName( claz ).newInstance()</code> (which only |
| calls the System class loader) when the class might be in a different |
| classloader (e.g. in a webapp).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>clazz</code> - the name of the class to instantiate</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an instance of the specified class</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassNotFoundException.html?is-external=true" title="class or interface in java.lang">ClassNotFoundException</a></code></dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang">IllegalAccessException</a></code></dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang">InstantiationException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getResourceAsStream-java.lang.Class-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getResourceAsStream</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a> getResourceAsStream(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?> claz, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Finds a resource with the given name. Checks the Thread Context |
| classloader, then uses the System classloader. Should replace all |
| calls to <code>Class.getResourceAsString</code> when the resource |
| might come from a different classloader. (e.g. a webapp).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>claz</code> - Class to use when getting the System classloader (used if no Thread |
| Context classloader available or fails to get resource).</dd> |
| <dd><code>name</code> - name of the resource</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>InputStream for the resource.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMethod-java.lang.String-java.lang.Object:A-java.lang.Class:A-java.lang.Object-org.apache.velocity.context.InternalContextAdapter-org.apache.velocity.runtime.parser.node.SimpleNode-boolean-"> |
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| <h4>getMethod</h4> |
| <pre>public static <a href="../../../../org/apache/velocity/util/introspection/VelMethod.html" title="interface in org.apache.velocity.util.introspection">VelMethod</a> getMethod(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> methodName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[] params, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?>[] paramClasses, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> o, |
| <a href="../../../../org/apache/velocity/context/InternalContextAdapter.html" title="interface in org.apache.velocity.context">InternalContextAdapter</a> context, |
| <a href="../../../../org/apache/velocity/runtime/parser/node/SimpleNode.html" title="class in org.apache.velocity.runtime.parser.node">SimpleNode</a> node, |
| boolean strictRef)</pre> |
| <div class="block">Lookup a VelMethod object given the method signature that is specified in |
| the passed in parameters. This method first searches the cache, if not found in |
| the cache then uses reflections to inspect Object o, for the given method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>methodName</code> - Name of method</dd> |
| <dd><code>params</code> - Array of objects that are parameters to the method</dd> |
| <dd><code>paramClasses</code> - Array of Classes corresponding to the types in params.</dd> |
| <dd><code>o</code> - Object to introspect for the given method.</dd> |
| <dd><code>context</code> - Context from which the method cache is acquired</dd> |
| <dd><code>node</code> - ASTNode, used for error reporting.</dd> |
| <dd><code>strictRef</code> - If no method is found, throw an exception, never return null in this case</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>VelMethod object if the object is found, null if not matching method is found</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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