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<div class="subTitle">org.apache.jasper.compiler</div>
<h2 title="Class JspRuntimeContext" class="title">Class JspRuntimeContext</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<ul class="inheritance">
<li>org.apache.jasper.compiler.JspRuntimeContext</li>
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<dt>All Implemented Interfaces:</dt>
<dd>java.lang.Runnable</dd>
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<pre>public final class <span class="typeNameLabel">JspRuntimeContext</span>
extends java.lang.Object
implements java.lang.Runnable</pre>
<div class="block">Class for tracking JSP compile time file dependencies when the
&060;%@include file="..."%&062; directive is used.
A background thread periodically checks the files a JSP page
is dependent upon. If a dpendent file changes the JSP page
which included it is recompiled.
Only used if a web application context is a directory.</div>
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<h3>Constructor Summary</h3>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#JspRuntimeContext-javax.servlet.ServletContext-org.apache.jasper.Options-">JspRuntimeContext</a></span>(<a href="../../../../javax/servlet/ServletContext.html" title="interface in javax.servlet">ServletContext</a>&nbsp;context,
<a href="../../../../org/apache/jasper/Options.html" title="interface in org.apache.jasper">Options</a>&nbsp;options)</code>
<div class="block">Create a JspRuntimeContext for a web application context.</div>
</td>
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<h3>Method Summary</h3>
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<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>
<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>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#addWrapper-java.lang.String-org.apache.jasper.servlet.JspServletWrapper-">addWrapper</a></span>(java.lang.String&nbsp;jspUri,
<a href="../../../../org/apache/jasper/servlet/JspServletWrapper.html" title="class in org.apache.jasper.servlet">JspServletWrapper</a>&nbsp;jsw)</code>
<div class="block">Add a new JspServletWrapper.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#adjustBytecodeTime-java.lang.String-long-">adjustBytecodeTime</a></span>(java.lang.String&nbsp;name,
long&nbsp;reference)</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#destroy--">destroy</a></span>()</code>
<div class="block">Process a "destory" event for this web application context.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getBytecode-java.lang.String-">getBytecode</a></span>(java.lang.String&nbsp;name)</code>
<div class="block">Retrieve the bytecode associated with the class</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getBytecodeBirthTime-java.lang.String-">getBytecodeBirthTime</a></span>(java.lang.String&nbsp;name)</code>
<div class="block">Retrieve the time the bytecode for a class was created</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>java.util.Map&lt;java.lang.String,byte[]&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getBytecodes--">getBytecodes</a></span>()</code>
<div class="block">Get the class-name to bytecode map</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getClassPath--">getClassPath</a></span>()</code>
<div class="block">The classpath that is passed off to the Java compiler.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>java.security.CodeSource</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getCodeSource--">getCodeSource</a></span>()</code>
<div class="block">Get the SecurityManager Policy CodeSource for this web
applicaiton context.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getJspCount--">getJspCount</a></span>()</code>
<div class="block">Returns the number of JSPs for which JspServletWrappers exist, i.e.,
the number of JSPs that have been loaded into the webapp.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getJspReloadCount--">getJspReloadCount</a></span>()</code>
<div class="block">Gets the current value of the JSP reload counter.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>java.util.Map&lt;java.lang.String,java.util.Map&lt;java.lang.String,javax.tools.JavaFileObject&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getPackageMap--">getPackageMap</a></span>()</code>
<div class="block">The packageMap keeps track of the bytecode files in a package generated
by a java compiler.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>java.lang.ClassLoader</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getParentClassLoader--">getParentClassLoader</a></span>()</code>
<div class="block">Get the parent class loader.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>java.security.PermissionCollection</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getPermissionCollection--">getPermissionCollection</a></span>()</code>
<div class="block">Get the SecurityManager PermissionCollection for this
web application context.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/jasper/servlet/JspServletWrapper.html" title="class in org.apache.jasper.servlet">JspServletWrapper</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#getWrapper-java.lang.String-">getWrapper</a></span>(java.lang.String&nbsp;jspUri)</code>
<div class="block">Get an already existing JspServletWrapper.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#incrementJspReloadCount--">incrementJspReloadCount</a></span>()</code>
<div class="block">Increments the JSP reload counter.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#removeWrapper-java.lang.String-">removeWrapper</a></span>(java.lang.String&nbsp;jspUri)</code>
<div class="block">Remove a JspServletWrapper.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#run--">run</a></span>()</code>
<div class="block">The background thread that checks for changes to files
included by a JSP and flags that a recompile is required.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#saveBytecode-java.lang.String-java.lang.String-">saveBytecode</a></span>(java.lang.String&nbsp;className,
java.lang.String&nbsp;classFileName)</code>
<div class="block">Save the bytecode for a class to disk.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#setBytecode-java.lang.String-byte:A-">setBytecode</a></span>(java.lang.String&nbsp;name,
byte[]&nbsp;bytecode)</code>
<div class="block">Save the bytecode for the class in a map.</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#setJspReloadCount-int-">setJspReloadCount</a></span>(int&nbsp;count)</code>
<div class="block">Resets the JSP reload counter.</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#threadSleep--">threadSleep</a></span>()</code>
<div class="block">Sleep for the duration specified by the <code>checkInterval</code>
property.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#threadStart--">threadStart</a></span>()</code>
<div class="block">Start the background thread that will periodically check for
changes to compile time included files in a JSP.</div>
</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jasper/compiler/JspRuntimeContext.html#threadStop--">threadStop</a></span>()</code>
<div class="block">Stop the background thread that is periodically checking for
changes to compile time included files in a JSP.</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
</ul>
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<h3>Constructor Detail</h3>
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<h4>JspRuntimeContext</h4>
<pre>public&nbsp;JspRuntimeContext(<a href="../../../../javax/servlet/ServletContext.html" title="interface in javax.servlet">ServletContext</a>&nbsp;context,
<a href="../../../../org/apache/jasper/Options.html" title="interface in org.apache.jasper">Options</a>&nbsp;options)</pre>
<div class="block">Create a JspRuntimeContext for a web application context.
Loads in any previously generated dependencies from file.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>context</code> - ServletContext for web application</dd>
</dl>
</li>
</ul>
</li>
</ul>
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<h3>Method Detail</h3>
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<h4>addWrapper</h4>
<pre>public&nbsp;void&nbsp;addWrapper(java.lang.String&nbsp;jspUri,
<a href="../../../../org/apache/jasper/servlet/JspServletWrapper.html" title="class in org.apache.jasper.servlet">JspServletWrapper</a>&nbsp;jsw)</pre>
<div class="block">Add a new JspServletWrapper.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>jspUri</code> - JSP URI</dd>
<dd><code>jsw</code> - Servlet wrapper for JSP</dd>
</dl>
</li>
</ul>
<a name="getWrapper-java.lang.String-">
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<h4>getWrapper</h4>
<pre>public&nbsp;<a href="../../../../org/apache/jasper/servlet/JspServletWrapper.html" title="class in org.apache.jasper.servlet">JspServletWrapper</a>&nbsp;getWrapper(java.lang.String&nbsp;jspUri)</pre>
<div class="block">Get an already existing JspServletWrapper.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>jspUri</code> - JSP URI</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>JspServletWrapper for JSP</dd>
</dl>
</li>
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<h4>removeWrapper</h4>
<pre>public&nbsp;void&nbsp;removeWrapper(java.lang.String&nbsp;jspUri)</pre>
<div class="block">Remove a JspServletWrapper.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>jspUri</code> - JSP URI of JspServletWrapper to remove</dd>
</dl>
</li>
</ul>
<a name="getJspCount--">
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<h4>getJspCount</h4>
<pre>public&nbsp;int&nbsp;getJspCount()</pre>
<div class="block">Returns the number of JSPs for which JspServletWrappers exist, i.e.,
the number of JSPs that have been loaded into the webapp.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of JSPs that have been loaded into the webapp</dd>
</dl>
</li>
</ul>
<a name="getCodeSource--">
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<h4>getCodeSource</h4>
<pre>public&nbsp;java.security.CodeSource&nbsp;getCodeSource()</pre>
<div class="block">Get the SecurityManager Policy CodeSource for this web
applicaiton context.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>CodeSource for JSP</dd>
</dl>
</li>
</ul>
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<h4>getParentClassLoader</h4>
<pre>public&nbsp;java.lang.ClassLoader&nbsp;getParentClassLoader()</pre>
<div class="block">Get the parent class loader.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>ClassLoader parent</dd>
</dl>
</li>
</ul>
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<h4>getPermissionCollection</h4>
<pre>public&nbsp;java.security.PermissionCollection&nbsp;getPermissionCollection()</pre>
<div class="block">Get the SecurityManager PermissionCollection for this
web application context.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>PermissionCollection permissions</dd>
</dl>
</li>
</ul>
<a name="destroy--">
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<h4>destroy</h4>
<pre>public&nbsp;void&nbsp;destroy()</pre>
<div class="block">Process a "destory" event for this web application context.</div>
</li>
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<h4>incrementJspReloadCount</h4>
<pre>public&nbsp;void&nbsp;incrementJspReloadCount()</pre>
<div class="block">Increments the JSP reload counter.</div>
</li>
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<h4>setJspReloadCount</h4>
<pre>public&nbsp;void&nbsp;setJspReloadCount(int&nbsp;count)</pre>
<div class="block">Resets the JSP reload counter.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>count</code> - Value to which to reset the JSP reload counter</dd>
</dl>
</li>
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<h4>getJspReloadCount</h4>
<pre>public&nbsp;int&nbsp;getJspReloadCount()</pre>
<div class="block">Gets the current value of the JSP reload counter.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The current value of the JSP reload counter</dd>
</dl>
</li>
</ul>
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<h4>setBytecode</h4>
<pre>public&nbsp;void&nbsp;setBytecode(java.lang.String&nbsp;name,
byte[]&nbsp;bytecode)</pre>
<div class="block">Save the bytecode for the class in a map. The current time is noted.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - The name of the class</dd>
<dd><code>bytecode</code> - The bytecode in byte array</dd>
</dl>
</li>
</ul>
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<h4>adjustBytecodeTime</h4>
<pre>public&nbsp;void&nbsp;adjustBytecodeTime(java.lang.String&nbsp;name,
long&nbsp;reference)</pre>
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<h4>getBytecodes</h4>
<pre>public&nbsp;java.util.Map&lt;java.lang.String,byte[]&gt;&nbsp;getBytecodes()</pre>
<div class="block">Get the class-name to bytecode map</div>
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<h4>getBytecode</h4>
<pre>public&nbsp;byte[]&nbsp;getBytecode(java.lang.String&nbsp;name)</pre>
<div class="block">Retrieve the bytecode associated with the class</div>
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<pre>public&nbsp;long&nbsp;getBytecodeBirthTime(java.lang.String&nbsp;name)</pre>
<div class="block">Retrieve the time the bytecode for a class was created</div>
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<pre>public&nbsp;java.util.Map&lt;java.lang.String,java.util.Map&lt;java.lang.String,javax.tools.JavaFileObject&gt;&gt;&nbsp;getPackageMap()</pre>
<div class="block">The packageMap keeps track of the bytecode files in a package generated
by a java compiler. This is in turn loaded by the java compiler during
compilation. This is gets around the fact that JSR199 API does not
provide a way for the compiler use current classloader.</div>
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<pre>public&nbsp;void&nbsp;saveBytecode(java.lang.String&nbsp;className,
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<div class="block">Save the bytecode for a class to disk.</div>
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<pre>public&nbsp;java.lang.String&nbsp;getClassPath()</pre>
<div class="block">The classpath that is passed off to the Java compiler.</div>
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<pre>protected&nbsp;void&nbsp;threadStart()</pre>
<div class="block">Start the background thread that will periodically check for
changes to compile time included files in a JSP.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalStateException</code> - if we should not be starting
a background thread now</dd>
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<pre>protected&nbsp;void&nbsp;threadStop()</pre>
<div class="block">Stop the background thread that is periodically checking for
changes to compile time included files in a JSP.</div>
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<pre>protected&nbsp;void&nbsp;threadSleep()</pre>
<div class="block">Sleep for the duration specified by the <code>checkInterval</code>
property.</div>
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<h4>run</h4>
<pre>public&nbsp;void&nbsp;run()</pre>
<div class="block">The background thread that checks for changes to files
included by a JSP and flags that a recompile is required.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>run</code>&nbsp;in interface&nbsp;<code>java.lang.Runnable</code></dd>
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