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apache / hbase-site / 2c46013158a253c8fb93c7b7bef94eb5bfdc9a3f / . / devapidocs / org / apache / hadoop / hbase / util / ClassLoaderBase.html
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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.hadoop.hbase.util</a></div>
<h1 title="Class ClassLoaderBase" class="title">Class ClassLoaderBase</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">java.lang.ClassLoader</a>
<div class="inheritance"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/security/SecureClassLoader.html" title="class or interface in java.security" class="external-link">java.security.SecureClassLoader</a>
<div class="inheritance"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html" title="class or interface in java.net" class="external-link">java.net.URLClassLoader</a>
<div class="inheritance">org.apache.hadoop.hbase.util.ClassLoaderBase</div>
</div>
</div>
</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/Closeable.html" title="class or interface in java.io" class="external-link">Closeable</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/AutoCloseable.html" title="class or interface in java.lang" class="external-link">AutoCloseable</a></code></dd>
</dl>
<dl class="notes">
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="CoprocessorClassLoader.html" title="class in org.apache.hadoop.hbase.util">CoprocessorClassLoader</a></code>, <code><a href="DynamicClassLoader.html" title="class in org.apache.hadoop.hbase.util">DynamicClassLoader</a></code></dd>
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<div class="type-signature"><span class="annotations">@Private
</span><span class="modifiers">public class </span><span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/ClassLoaderBase.html#line-29">ClassLoaderBase</a></span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html" title="class or interface in java.net" class="external-link">URLClassLoader</a></span></div>
<div class="block">Base class loader that defines couple shared constants used by sub-classes.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="caption"><span>Fields</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>protected static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color"><code><a href="#DEFAULT_LOCAL_DIR" class="member-name-link">DEFAULT_LOCAL_DIR</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>protected static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color"><code><a href="#LOCAL_DIR_KEY" class="member-name-link">LOCAL_DIR_KEY</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
<div class="col-first even-row-color"><code>protected final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a></code></div>
<div class="col-second even-row-color"><code><a href="#parent" class="member-name-link">parent</a></code></div>
<div class="col-last even-row-color">
<div class="block">Parent class loader.</div>
</div>
</div>
</section>
</li>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(java.lang.ClassLoader)" class="member-name-link">ClassLoaderBase</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a>&nbsp;parent)</code></div>
<div class="col-last even-row-color">
<div class="block">Creates a DynamicClassLoader that can load classes dynamically from jar files under a specific
folder.</div>
</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.net.URLClassLoader">Methods inherited from class&nbsp;java.net.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html" title="class or interface in java.net" class="external-link">URLClassLoader</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#addURL(java.net.URL)" title="class or interface in java.net" class="external-link">addURL</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#close()" title="class or interface in java.net" class="external-link">close</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#definePackage(java.lang.String,java.util.jar.Manifest,java.net.URL)" title="class or interface in java.net" class="external-link">definePackage</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#findClass(java.lang.String)" title="class or interface in java.net" class="external-link">findClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#findResource(java.lang.String)" title="class or interface in java.net" class="external-link">findResource</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#findResources(java.lang.String)" title="class or interface in java.net" class="external-link">findResources</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#getPermissions(java.security.CodeSource)" title="class or interface in java.net" class="external-link">getPermissions</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#getResourceAsStream(java.lang.String)" title="class or interface in java.net" class="external-link">getResourceAsStream</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#getURLs()" title="class or interface in java.net" class="external-link">getURLs</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#newInstance(java.net.URL%5B%5D)" title="class or interface in java.net" class="external-link">newInstance</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#newInstance(java.net.URL%5B%5D,java.lang.ClassLoader)" title="class or interface in java.net" class="external-link">newInstance</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.security.SecureClassLoader">Methods inherited from class&nbsp;java.security.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/security/SecureClassLoader.html" title="class or interface in java.security" class="external-link">SecureClassLoader</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/security/SecureClassLoader.html#defineClass(java.lang.String,byte%5B%5D,int,int,java.security.CodeSource)" title="class or interface in java.security" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/security/SecureClassLoader.html#defineClass(java.lang.String,java.nio.ByteBuffer,java.security.CodeSource)" title="class or interface in java.security" class="external-link">defineClass</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.ClassLoader">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#clearAssertionStatus()" title="class or interface in java.lang" class="external-link">clearAssertionStatus</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#defineClass(byte%5B%5D,int,int)" title="class or interface in java.lang" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#defineClass(java.lang.String,byte%5B%5D,int,int)" title="class or interface in java.lang" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#defineClass(java.lang.String,byte%5B%5D,int,int,java.security.ProtectionDomain)" title="class or interface in java.lang" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#defineClass(java.lang.String,java.nio.ByteBuffer,java.security.ProtectionDomain)" title="class or interface in java.lang" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#definePackage(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.net.URL)" title="class or interface in java.lang" class="external-link">definePackage</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findClass(java.lang.String,java.lang.String)" title="class or interface in java.lang" class="external-link">findClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findLibrary(java.lang.String)" title="class or interface in java.lang" class="external-link">findLibrary</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findLoadedClass(java.lang.String)" title="class or interface in java.lang" class="external-link">findLoadedClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findResource(java.lang.String,java.lang.String)" title="class or interface in java.lang" class="external-link">findResource</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findSystemClass(java.lang.String)" title="class or interface in java.lang" class="external-link">findSystemClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getClassLoadingLock(java.lang.String)" title="class or interface in java.lang" class="external-link">getClassLoadingLock</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getDefinedPackage(java.lang.String)" title="class or interface in java.lang" class="external-link">getDefinedPackage</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getDefinedPackages()" title="class or interface in java.lang" class="external-link">getDefinedPackages</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getName()" title="class or interface in java.lang" class="external-link">getName</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getPackage(java.lang.String)" title="class or interface in java.lang" class="external-link">getPackage</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getPackages()" title="class or interface in java.lang" class="external-link">getPackages</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getParent()" title="class or interface in java.lang" class="external-link">getParent</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getPlatformClassLoader()" title="class or interface in java.lang" class="external-link">getPlatformClassLoader</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getResource(java.lang.String)" title="class or interface in java.lang" class="external-link">getResource</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getResources(java.lang.String)" title="class or interface in java.lang" class="external-link">getResources</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getSystemClassLoader()" title="class or interface in java.lang" class="external-link">getSystemClassLoader</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getSystemResource(java.lang.String)" title="class or interface in java.lang" class="external-link">getSystemResource</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getSystemResourceAsStream(java.lang.String)" title="class or interface in java.lang" class="external-link">getSystemResourceAsStream</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getSystemResources(java.lang.String)" title="class or interface in java.lang" class="external-link">getSystemResources</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getUnnamedModule()" title="class or interface in java.lang" class="external-link">getUnnamedModule</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#isRegisteredAsParallelCapable()" title="class or interface in java.lang" class="external-link">isRegisteredAsParallelCapable</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#loadClass(java.lang.String)" title="class or interface in java.lang" class="external-link">loadClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#loadClass(java.lang.String,boolean)" title="class or interface in java.lang" class="external-link">loadClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#registerAsParallelCapable()" title="class or interface in java.lang" class="external-link">registerAsParallelCapable</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#resolveClass(java.lang.Class)" title="class or interface in java.lang" class="external-link">resolveClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#resources(java.lang.String)" title="class or interface in java.lang" class="external-link">resources</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#setClassAssertionStatus(java.lang.String,boolean)" title="class or interface in java.lang" class="external-link">setClassAssertionStatus</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#setDefaultAssertionStatus(boolean)" title="class or interface in java.lang" class="external-link">setDefaultAssertionStatus</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#setPackageAssertionStatus(java.lang.String,boolean)" title="class or interface in java.lang" class="external-link">setPackageAssertionStatus</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#setSigners(java.lang.Class,java.lang.Object%5B%5D)" title="class or interface in java.lang" class="external-link">setSigners</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field-detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="DEFAULT_LOCAL_DIR">
<h3>DEFAULT_LOCAL_DIR</h3>
<div class="member-signature"><span class="modifiers">protected static final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/ClassLoaderBase.html#line-32">DEFAULT_LOCAL_DIR</a></span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.util.ClassLoaderBase.DEFAULT_LOCAL_DIR">Constant Field Values</a></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="LOCAL_DIR_KEY">
<h3>LOCAL_DIR_KEY</h3>
<div class="member-signature"><span class="modifiers">protected static final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/ClassLoaderBase.html#line-33">LOCAL_DIR_KEY</a></span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.util.ClassLoaderBase.LOCAL_DIR_KEY">Constant Field Values</a></li>
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<section class="detail" id="parent">
<h3>parent</h3>
<div class="member-signature"><span class="modifiers">protected final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a></span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/ClassLoaderBase.html#line-38">parent</a></span></div>
<div class="block">Parent class loader.</div>
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<h2>Constructor Details</h2>
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<section class="detail" id="&lt;init&gt;(java.lang.ClassLoader)">
<h3>ClassLoaderBase</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/ClassLoaderBase.html#line-45">ClassLoaderBase</a></span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a>&nbsp;parent)</span></div>
<div class="block">Creates a DynamicClassLoader that can load classes dynamically from jar files under a specific
folder.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>parent</code> - the parent ClassLoader to set.</dd>
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