blob: 71834a134ad20649fa6e2fdc453808c4b20dc47b [file] [log] [blame]
<!DOCTYPE HTML>
<html lang="en">
<head>
<!-- Generated by javadoc (17) -->
<title>Watcher (Apache Log4j Core 2.23.1 API)</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="description" content="declaration: package: org.apache.logging.log4j.core.util, interface: Watcher">
<meta name="generator" content="javadoc/ClassWriterImpl">
<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
<link rel="stylesheet" type="text/css" href="../../../../../../script-dir/jquery-ui.min.css" title="Style">
<link rel="stylesheet" type="text/css" href="../../../../../../jquery-ui.overrides.css" title="Style">
<script type="text/javascript" src="../../../../../../script.js"></script>
<script type="text/javascript" src="../../../../../../script-dir/jquery-3.6.1.min.js"></script>
<script type="text/javascript" src="../../../../../../script-dir/jquery-ui.min.js"></script>
</head>
<body class="class-declaration-page">
<script type="text/javascript">var evenRowColor = "even-row-color";
var oddRowColor = "odd-row-color";
var tableTab = "table-tab";
var activeTableTab = "active-table-tab";
var pathtoroot = "../../../../../../";
loadScripts(document, 'script');</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
<div class="flex-box">
<header role="banner" class="flex-header">
<nav role="navigation">
<!-- ========= START OF TOP NAVBAR ======= -->
<div class="top-nav" id="navbar-top">
<div class="skip-nav"><a href="#skip-navbar-top" title="Skip navigation links">Skip navigation links</a></div>
<ul id="navbar-top-firstrow" class="nav-list" title="Navigation">
<li><a href="../../../../../../index.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="nav-bar-cell1-rev">Class</li>
<li><a href="class-use/Watcher.html">Use</a></li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../../../index-all.html">Index</a></li>
<li><a href="../../../../../../help-doc.html#class">Help</a></li>
</ul>
</div>
<div class="sub-nav">
<div>
<ul class="sub-nav-list">
<li>Summary:&nbsp;</li>
<li>Nested&nbsp;|&nbsp;</li>
<li><a href="#field-summary">Field</a>&nbsp;|&nbsp;</li>
<li>Constr&nbsp;|&nbsp;</li>
<li><a href="#method-summary">Method</a></li>
</ul>
<ul class="sub-nav-list">
<li>Detail:&nbsp;</li>
<li><a href="#field-detail">Field</a>&nbsp;|&nbsp;</li>
<li>Constr&nbsp;|&nbsp;</li>
<li><a href="#method-detail">Method</a></li>
</ul>
</div>
<div class="nav-list-search"><label for="search-input">SEARCH:</label>
<input type="text" id="search-input" value="search" disabled="disabled">
<input type="reset" id="reset-button" value="reset" disabled="disabled">
</div>
</div>
<!-- ========= END OF TOP NAVBAR ========= -->
<span class="skip-nav" id="skip-navbar-top"></span></nav>
</header>
<div class="flex-content">
<main role="main">
<!-- ======== START OF CLASS DATA ======== -->
<div class="header">
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.logging.log4j.core.util</a></div>
<h1 title="Interface Watcher" class="title">Interface Watcher</h1>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Known Implementing Classes:</dt>
<dd><code><a href="AbstractWatcher.html" title="class in org.apache.logging.log4j.core.util">AbstractWatcher</a></code>, <code><a href="../config/ConfigurationFileWatcher.html" title="class in org.apache.logging.log4j.core.config">ConfigurationFileWatcher</a></code>, <code><a href="../config/HttpWatcher.html" title="class in org.apache.logging.log4j.core.config">HttpWatcher</a></code>, <code><a href="WrappedFileWatcher.html" title="class in org.apache.logging.log4j.core.util">WrappedFileWatcher</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">Watcher</span></div>
<div class="block">Watches for changes in a Source and performs an action when it is modified.</div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="WatchManager.html" title="class in org.apache.logging.log4j.core.util"><code>WatchManager</code></a></li>
</ul>
</dd>
</dl>
</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>static final <a href="https://docs.oracle.com/javase/8/docs/api/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="#CATEGORY" class="member-name-link">CATEGORY</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-first odd-row-color"><code>static final <a href="https://docs.oracle.com/javase/8/docs/api/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="#ELEMENT_TYPE" class="member-name-link">ELEMENT_TYPE</a></code></div>
<div class="col-last odd-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>long</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getLastModified()" class="member-name-link">getLastModified</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns the time the source was last modified or 0 if it is not available.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="../config/ConfigurationListener.html" title="interface in org.apache.logging.log4j.core.config">ConfigurationListener</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getListeners()" class="member-name-link">getListeners</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns the list of listeners for this configuration.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="Source.html" title="class in org.apache.logging.log4j.core.util">Source</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getSource()" class="member-name-link">getSource</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns the Source being monitored.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#isModified()" class="member-name-link">isModified</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Periodically called to determine if the configuration has been modified.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#modified()" class="member-name-link">modified</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Called when the configuration has been modified.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="Watcher.html" title="interface in org.apache.logging.log4j.core.util">Watcher</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#newWatcher(org.apache.logging.log4j.core.config.Reconfigurable,java.util.List,long)" class="member-name-link">newWatcher</a><wbr>(<a href="../config/Reconfigurable.html" title="interface in org.apache.logging.log4j.core.config">Reconfigurable</a>&nbsp;reconfigurable,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="../config/ConfigurationListener.html" title="interface in org.apache.logging.log4j.core.config">ConfigurationListener</a>&gt;&nbsp;listeners,
long&nbsp;lastModifiedMillis)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Creates a new Watcher by copying the original and using the new Reconfigurable and listeners.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#watching(org.apache.logging.log4j.core.util.Source)" class="member-name-link">watching</a><wbr>(<a href="Source.html" title="class in org.apache.logging.log4j.core.util">Source</a>&nbsp;source)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Called when the Watcher is registered.</div>
</div>
</div>
</div>
</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="CATEGORY">
<h3>CATEGORY</h3>
<div class="member-signature"><span class="modifiers">static final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">CATEGORY</span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../../../constant-values.html#org.apache.logging.log4j.core.util.Watcher.CATEGORY">Constant Field Values</a></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="ELEMENT_TYPE">
<h3>ELEMENT_TYPE</h3>
<div class="member-signature"><span class="modifiers">static final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">ELEMENT_TYPE</span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../../../constant-values.html#org.apache.logging.log4j.core.util.Watcher.ELEMENT_TYPE">Constant Field Values</a></li>
</ul>
</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getListeners()">
<h3>getListeners</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="../config/ConfigurationListener.html" title="interface in org.apache.logging.log4j.core.config">ConfigurationListener</a>&gt;</span>&nbsp;<span class="element-name">getListeners</span>()</div>
<div class="block">Returns the list of listeners for this configuration.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>The list of listeners.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="modified()">
<h3>modified</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">modified</span>()</div>
<div class="block">Called when the configuration has been modified.</div>
</section>
</li>
<li>
<section class="detail" id="isModified()">
<h3>isModified</h3>
<div class="member-signature"><span class="return-type">boolean</span>&nbsp;<span class="element-name">isModified</span>()</div>
<div class="block">Periodically called to determine if the configuration has been modified.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>true if the configuration was modified, false otherwise.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getLastModified()">
<h3>getLastModified</h3>
<div class="member-signature"><span class="return-type">long</span>&nbsp;<span class="element-name">getLastModified</span>()</div>
<div class="block">Returns the time the source was last modified or 0 if it is not available.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the time the source was last modified.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="watching(org.apache.logging.log4j.core.util.Source)">
<h3>watching</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">watching</span><wbr><span class="parameters">(<a href="Source.html" title="class in org.apache.logging.log4j.core.util">Source</a>&nbsp;source)</span></div>
<div class="block">Called when the Watcher is registered.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>source</code> - the Source that is being watched.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getSource()">
<h3>getSource</h3>
<div class="member-signature"><span class="return-type"><a href="Source.html" title="class in org.apache.logging.log4j.core.util">Source</a></span>&nbsp;<span class="element-name">getSource</span>()</div>
<div class="block">Returns the Source being monitored.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the Source.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="newWatcher(org.apache.logging.log4j.core.config.Reconfigurable,java.util.List,long)">
<h3>newWatcher</h3>
<div class="member-signature"><span class="return-type"><a href="Watcher.html" title="interface in org.apache.logging.log4j.core.util">Watcher</a></span>&nbsp;<span class="element-name">newWatcher</span><wbr><span class="parameters">(<a href="../config/Reconfigurable.html" title="interface in org.apache.logging.log4j.core.config">Reconfigurable</a>&nbsp;reconfigurable,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="../config/ConfigurationListener.html" title="interface in org.apache.logging.log4j.core.config">ConfigurationListener</a>&gt;&nbsp;listeners,
long&nbsp;lastModifiedMillis)</span></div>
<div class="block">Creates a new Watcher by copying the original and using the new Reconfigurable and listeners.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>reconfigurable</code> - The Reconfigurable.</dd>
<dd><code>listeners</code> - the listeners.</dd>
<dd><code>lastModifiedMillis</code> - The time the resource was last modified in milliseconds.</dd>
<dt>Returns:</dt>
<dd>A new Watcher.</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
<!-- ========= END OF CLASS DATA ========= -->
</main>
<footer role="contentinfo">
<hr>
<p class="legal-copy"><small><p align="center"> Copyright &copy; 1999-2024 <a href="https://www.apache.org/">The Apache Software Foundation</a>. All Rights Reserved.<br/> Apache Logging, Apache Log4j, Log4j, Apache, the Apache feather logo, the Apache Logging project logo, and the Apache Log4j logo are trademarks of The Apache Software Foundation. </p></small></p>
</footer>
</div>
</div>
</body>
</html>