<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!-- NewPage --> <html lang="en"> <head> <!-- Generated by javadoc (1.8.0_191) on Wed Oct 31 14:00:34 UTC 2018 --> <title>ObservableArrayBase (JavaFX 8)</title> <meta name="date" content="2018-10-31"> <link rel="stylesheet" type="text/css" href="../../stylesheet.css" title="Style"> <script type="text/javascript" src="../../script.js"></script> </head> <body> <script type="text/javascript"><!-- try { if (location.href.indexOf('is-external=true') == -1) { parent.document.title="ObservableArrayBase (JavaFX 8)"; } } catch(err) { } //--> var methods = {"i0":10,"i1":10,"i2":10,"i3":10,"i4":10}; var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],8:["t4","Concrete Methods"]}; var altColor = "altColor"; var rowColor = "rowColor"; var tableTab = "tableTab"; var activeTableTab = "activeTableTab"; </script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript> <!-- ========= START OF TOP NAVBAR ======= --> <div class="topNav"><a name="navbar.top"> <!-- --> </a> <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div> <a name="navbar.top.firstrow"> <!-- --> </a> <ul class="navList" title="Navigation"> <li><a href="../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/ObservableArrayBase.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">Help</a></li> </ul> <div class="aboutLanguage">JavaFX 8</div> </div> <div class="subNav"> <ul class="navList"> <li><a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections"><span class="typeNameLink">Prev Class</span></a></li> <li><a href="../../javafx/collections/ObservableFloatArray.html" title="interface in javafx.collections"><span class="typeNameLink">Next Class</span></a></li> </ul> <ul class="navList"> <li><a href="../../index.html?javafx/collections/ObservableArrayBase.html" target="_top">Frames</a></li> <li><a href="ObservableArrayBase.html" target="_top">No Frames</a></li> </ul> <ul class="navList" id="allclasses_navbar_top"> <li><a href="../../allclasses-noframe.html">All Classes</a></li> </ul> <div> <script type="text/javascript"><!-- allClassesLink = document.getElementById("allclasses_navbar_top"); if(window==top) { allClassesLink.style.display = "block"; } else { allClassesLink.style.display = "none"; } //--> </script> </div> <div> <ul class="subNavList"> <li>Summary: </li> <li>Nested | </li> <li>Field | </li> <li><a href="#constructor.summary">Constr</a> | </li> <li><a href="#method.summary">Method</a></li> </ul> <ul class="subNavList"> <li>Detail: </li> <li>Field | </li> <li><a href="#constructor.detail">Constr</a> | </li> <li><a href="#method.detail">Method</a></li> </ul> </div> <a name="skip.navbar.top"> <!-- --> </a></div> <!-- ========= END OF TOP NAVBAR ========= --> <!-- ======== START OF CLASS DATA ======== --> <div class="header"> <div class="subTitle">javafx.collections</div> <h2 title="Class ObservableArrayBase" class="title">Class ObservableArrayBase<T extends <a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a><T>></h2> </div> <div class="contentContainer"> <ul class="inheritance"> <li>java.lang.Object</li> <li> <ul class="inheritance"> <li>javafx.collections.ObservableArrayBase<T></li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <dl> <dt><span class="paramLabel">Type Parameters:</span></dt> <dd><code>T</code> - actual array instance type</dd> </dl> <dl> <dt>All Implemented Interfaces:</dt> <dd><a href="../../javafx/beans/Observable.html" title="interface in javafx.beans">Observable</a>, <a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a><T></dd> </dl> <hr> <br> <pre>public abstract class <span class="typeNameLabel">ObservableArrayBase<T extends <a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a><T>></span> extends java.lang.Object implements <a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a><T></pre> <div class="block">Abstract class that serves as a base class for <a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections"><code>ObservableArray</code></a> implementations. The base class provides listener handling functionality by implementing <code>addListener</code> and <code>removeListener</code> methods. <a href="../../javafx/collections/ObservableArrayBase.html#fireChange-boolean-int-int-"><code>fireChange(boolean, int, int)</code></a> method is provided for notifying the listeners.</div> <dl> <dt><span class="simpleTagLabel">Since:</span></dt> <dd>JavaFX 8.0</dd> <dt><span class="seeLabel">See Also:</span></dt> <dd><a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections"><code>ObservableArray</code></a>, <a href="../../javafx/collections/ArrayChangeListener.html" title="interface in javafx.collections"><code>ArrayChangeListener</code></a></dd> </dl> </li> </ul> </div> <div class="summary"> <ul class="blockList"> <li class="blockList"> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <ul class="blockList"> <li class="blockList"><a name="constructor.summary"> <!-- --> </a> <h3>Constructor Summary</h3> <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> <caption><span>Constructors</span><span class="tabEnd"> </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="../../javafx/collections/ObservableArrayBase.html#ObservableArrayBase--">ObservableArrayBase</a></span>()</code> </td> </tr> </table> </li> </ul> <!-- ========== METHOD SUMMARY =========== --> <ul class="blockList"> <li class="blockList"><a name="method.summary"> <!-- --> </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="t2" class="tableTab"><span><a href="javascript:show(2);">Instance 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>void</code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/ObservableArrayBase.html#addListener-javafx.collections.ArrayChangeListener-">addListener</a></span>(<a href="../../javafx/collections/ArrayChangeListener.html" title="interface in javafx.collections">ArrayChangeListener</a><<a href="../../javafx/collections/ObservableArrayBase.html" title="type parameter in ObservableArrayBase">T</a>> listener)</code> <div class="block">Add a listener to this observable array.</div> </td> </tr> <tr id="i1" class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/ObservableArrayBase.html#addListener-javafx.beans.InvalidationListener-">addListener</a></span>(<a href="../../javafx/beans/InvalidationListener.html" title="interface in javafx.beans">InvalidationListener</a> listener)</code> <div class="block">Adds an <a href="../../javafx/beans/InvalidationListener.html" title="interface in javafx.beans"><code>InvalidationListener</code></a> which will be notified whenever the <code>Observable</code> becomes invalid.</div> </td> </tr> <tr id="i2" class="altColor"> <td class="colFirst"><code>protected void</code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/ObservableArrayBase.html#fireChange-boolean-int-int-">fireChange</a></span>(boolean sizeChanged, int from, int to)</code> <div class="block">Notifies all listeners of a change</div> </td> </tr> <tr id="i3" class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/ObservableArrayBase.html#removeListener-javafx.collections.ArrayChangeListener-">removeListener</a></span>(<a href="../../javafx/collections/ArrayChangeListener.html" title="interface in javafx.collections">ArrayChangeListener</a><<a href="../../javafx/collections/ObservableArrayBase.html" title="type parameter in ObservableArrayBase">T</a>> listener)</code> <div class="block">Tries to remove a listener from this observable array.</div> </td> </tr> <tr id="i4" class="altColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/ObservableArrayBase.html#removeListener-javafx.beans.InvalidationListener-">removeListener</a></span>(<a href="../../javafx/beans/InvalidationListener.html" title="interface in javafx.beans">InvalidationListener</a> listener)</code> <div class="block">Removes the given listener from the list of listeners, that are notified whenever the value of the <code>Observable</code> becomes invalid.</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.Object</h3> <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> </ul> <ul class="blockList"> <li class="blockList"><a name="methods.inherited.from.class.javafx.collections.ObservableArray"> <!-- --> </a> <h3>Methods inherited from interface javafx.collections.<a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a></h3> <code><a href="../../javafx/collections/ObservableArray.html#clear--">clear</a>, <a href="../../javafx/collections/ObservableArray.html#ensureCapacity-int-">ensureCapacity</a>, <a href="../../javafx/collections/ObservableArray.html#resize-int-">resize</a>, <a href="../../javafx/collections/ObservableArray.html#size--">size</a>, <a href="../../javafx/collections/ObservableArray.html#trimToSize--">trimToSize</a></code></li> </ul> </li> </ul> </li> </ul> </div> <div class="details"> <ul class="blockList"> <li class="blockList"> <!-- ========= CONSTRUCTOR DETAIL ======== --> <ul class="blockList"> <li class="blockList"><a name="constructor.detail"> <!-- --> </a> <h3>Constructor Detail</h3> <a name="ObservableArrayBase--"> <!-- --> </a> <ul class="blockListLast"> <li class="blockList"> <h4>ObservableArrayBase</h4> <pre>public ObservableArrayBase()</pre> </li> </ul> </li> </ul> <!-- ============ METHOD DETAIL ========== --> <ul class="blockList"> <li class="blockList"><a name="method.detail"> <!-- --> </a> <h3>Method Detail</h3> <a name="addListener-javafx.beans.InvalidationListener-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>addListener</h4> <pre>public final void addListener(<a href="../../javafx/beans/InvalidationListener.html" title="interface in javafx.beans">InvalidationListener</a> listener)</pre> <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../javafx/beans/Observable.html#addListener-javafx.beans.InvalidationListener-">Observable</a></code></span></div> <div class="block">Adds an <a href="../../javafx/beans/InvalidationListener.html" title="interface in javafx.beans"><code>InvalidationListener</code></a> which will be notified whenever the <code>Observable</code> becomes invalid. If the same listener is added more than once, then it will be notified more than once. That is, no check is made to ensure uniqueness. <p> Note that the same actual <code>InvalidationListener</code> instance may be safely registered for different <code>Observables</code>. <p> The <code>Observable</code> stores a strong reference to the listener which will prevent the listener from being garbage collected and may result in a memory leak. It is recommended to either unregister a listener by calling <a href="../../javafx/beans/Observable.html#removeListener-javafx.beans.InvalidationListener-"><code>removeListener</code></a> after use or to use an instance of <a href="../../javafx/beans/WeakInvalidationListener.html" title="class in javafx.beans"><code>WeakInvalidationListener</code></a> avoid this situation.</div> <dl> <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> <dd><code><a href="../../javafx/beans/Observable.html#addListener-javafx.beans.InvalidationListener-">addListener</a></code> in interface <code><a href="../../javafx/beans/Observable.html" title="interface in javafx.beans">Observable</a></code></dd> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>listener</code> - The listener to register</dd> <dt><span class="seeLabel">See Also:</span></dt> <dd><a href="../../javafx/beans/Observable.html#removeListener-javafx.beans.InvalidationListener-"><code>Observable.removeListener(InvalidationListener)</code></a></dd> </dl> </li> </ul> <a name="removeListener-javafx.beans.InvalidationListener-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>removeListener</h4> <pre>public final void removeListener(<a href="../../javafx/beans/InvalidationListener.html" title="interface in javafx.beans">InvalidationListener</a> listener)</pre> <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../javafx/beans/Observable.html#removeListener-javafx.beans.InvalidationListener-">Observable</a></code></span></div> <div class="block">Removes the given listener from the list of listeners, that are notified whenever the value of the <code>Observable</code> becomes invalid. <p> If the given listener has not been previously registered (i.e. it was never added) then this method call is a no-op. If it had been previously added then it will be removed. If it had been added more than once, then only the first occurrence will be removed.</div> <dl> <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> <dd><code><a href="../../javafx/beans/Observable.html#removeListener-javafx.beans.InvalidationListener-">removeListener</a></code> in interface <code><a href="../../javafx/beans/Observable.html" title="interface in javafx.beans">Observable</a></code></dd> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>listener</code> - The listener to remove</dd> <dt><span class="seeLabel">See Also:</span></dt> <dd><a href="../../javafx/beans/Observable.html#addListener-javafx.beans.InvalidationListener-"><code>Observable.addListener(InvalidationListener)</code></a></dd> </dl> </li> </ul> <a name="addListener-javafx.collections.ArrayChangeListener-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>addListener</h4> <pre>public final void addListener(<a href="../../javafx/collections/ArrayChangeListener.html" title="interface in javafx.collections">ArrayChangeListener</a><<a href="../../javafx/collections/ObservableArrayBase.html" title="type parameter in ObservableArrayBase">T</a>> listener)</pre> <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../javafx/collections/ObservableArray.html#addListener-javafx.collections.ArrayChangeListener-">ObservableArray</a></code></span></div> <div class="block">Add a listener to this observable array.</div> <dl> <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> <dd><code><a href="../../javafx/collections/ObservableArray.html#addListener-javafx.collections.ArrayChangeListener-">addListener</a></code> in interface <code><a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a><<a href="../../javafx/collections/ObservableArrayBase.html" title="type parameter in ObservableArrayBase">T</a> extends <a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a><<a href="../../javafx/collections/ObservableArrayBase.html" title="type parameter in ObservableArrayBase">T</a>>></code></dd> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>listener</code> - the listener for listening to the array changes</dd> </dl> </li> </ul> <a name="removeListener-javafx.collections.ArrayChangeListener-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>removeListener</h4> <pre>public final void removeListener(<a href="../../javafx/collections/ArrayChangeListener.html" title="interface in javafx.collections">ArrayChangeListener</a><<a href="../../javafx/collections/ObservableArrayBase.html" title="type parameter in ObservableArrayBase">T</a>> listener)</pre> <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../javafx/collections/ObservableArray.html#removeListener-javafx.collections.ArrayChangeListener-">ObservableArray</a></code></span></div> <div class="block">Tries to remove a listener from this observable array. If the listener is not attached to this array, nothing happens.</div> <dl> <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> <dd><code><a href="../../javafx/collections/ObservableArray.html#removeListener-javafx.collections.ArrayChangeListener-">removeListener</a></code> in interface <code><a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a><<a href="../../javafx/collections/ObservableArrayBase.html" title="type parameter in ObservableArrayBase">T</a> extends <a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections">ObservableArray</a><<a href="../../javafx/collections/ObservableArrayBase.html" title="type parameter in ObservableArrayBase">T</a>>></code></dd> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>listener</code> - a listener to remove</dd> </dl> </li> </ul> <a name="fireChange-boolean-int-int-"> <!-- --> </a> <ul class="blockListLast"> <li class="blockList"> <h4>fireChange</h4> <pre>protected final void fireChange(boolean sizeChanged, int from, int to)</pre> <div class="block">Notifies all listeners of a change</div> <dl> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>change</code> - </dd> </dl> </li> </ul> </li> </ul> </li> </ul> </div> </div> <!-- ========= END OF CLASS DATA ========= --> <!-- ======= START OF BOTTOM NAVBAR ====== --> <div class="bottomNav"><a name="navbar.bottom"> <!-- --> </a> <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> <a name="navbar.bottom.firstrow"> <!-- --> </a> <ul class="navList" title="Navigation"> <li><a href="../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/ObservableArrayBase.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">Help</a></li> </ul> <div class="aboutLanguage">JavaFX 8</div> </div> <div class="subNav"> <ul class="navList"> <li><a href="../../javafx/collections/ObservableArray.html" title="interface in javafx.collections"><span class="typeNameLink">Prev Class</span></a></li> <li><a href="../../javafx/collections/ObservableFloatArray.html" title="interface in javafx.collections"><span class="typeNameLink">Next Class</span></a></li> </ul> <ul class="navList"> <li><a href="../../index.html?javafx/collections/ObservableArrayBase.html" target="_top">Frames</a></li> <li><a href="ObservableArrayBase.html" target="_top">No Frames</a></li> </ul> <ul class="navList" id="allclasses_navbar_bottom"> <li><a href="../../allclasses-noframe.html">All Classes</a></li> </ul> <div> <script type="text/javascript"><!-- allClassesLink = document.getElementById("allclasses_navbar_bottom"); if(window==top) { allClassesLink.style.display = "block"; } else { allClassesLink.style.display = "none"; } //--> </script> </div> <div> <ul class="subNavList"> <li>Summary: </li> <li>Nested | </li> <li>Field | </li> <li><a href="#constructor.summary">Constr</a> | </li> <li><a href="#method.summary">Method</a></li> </ul> <ul class="subNavList"> <li>Detail: </li> <li>Field | </li> <li><a href="#constructor.detail">Constr</a> | </li> <li><a href="#method.detail">Method</a></li> </ul> </div> <a name="skip.navbar.bottom"> <!-- --> </a></div> <!-- ======== END OF BOTTOM NAVBAR ======= --> <p class="legalCopy"><small><font size="-1"><a href="http://bugreport.java.com/bugreport/" target="_blank">Submit a bug or feature</a><br>For further API reference and developer documentation, see <a href="https://docs.oracle.com/javase/8/docs/index.html" target="_blank">Java SE Documentation</a>. 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