<!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_141) on Mon Oct 30 09:22:23 GMT 2017 --> <title>BooleanExpression (JavaFX 8)</title> <meta name="date" content="2017-10-30"> <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="BooleanExpression (JavaFX 8)"; } } catch(err) { } //--> var methods = {"i0":10,"i1":10,"i2":10,"i3":9,"i4":9,"i5":10,"i6":10,"i7":10,"i8":10,"i9":10}; var tabs = {65535:["t0","All Methods"],1:["t1","Static 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/BooleanExpression.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/beans/binding/BooleanBinding.html" title="class in 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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.beans.binding</div> <h2 title="Class BooleanExpression" class="title">Class BooleanExpression</h2> </div> <div class="contentContainer"> <ul class="inheritance"> <li>java.lang.Object</li> <li> <ul class="inheritance"> <li>javafx.beans.binding.BooleanExpression</li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <dl> <dt>All Implemented Interfaces:</dt> <dd><a href="../../../javafx/beans/Observable.html" title="interface in javafx.beans">Observable</a>, <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a>, <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a><java.lang.Boolean></dd> </dl> <dl> <dt>Direct Known Subclasses:</dt> <dd><a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>, <a href="../../../javafx/beans/property/ReadOnlyBooleanProperty.html" title="class in javafx.beans.property">ReadOnlyBooleanProperty</a></dd> </dl> <hr> <br> <pre>public abstract class <span class="typeNameLabel">BooleanExpression</span> extends java.lang.Object implements <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a></pre> <div class="block">A <code>BooleanExpression</code> is a <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a> plus additional convenience methods to generate bindings in a fluent style. <p> A concrete sub-class of <code>BooleanExpression</code> has to implement the method <a href="../../../javafx/beans/value/ObservableBooleanValue.html#get--"><code>ObservableBooleanValue.get()</code></a>, which provides the actual value of this expression.</div> <dl> <dt><span class="simpleTagLabel">Since:</span></dt> <dd>JavaFX 2.0</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/beans/binding/BooleanExpression.html#BooleanExpression--">BooleanExpression</a></span>()</code> <div class="block">Sole constructor</div> </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="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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><a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#and-javafx.beans.value.ObservableBooleanValue-">and</a></span>(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> other)</code> <div class="block">Creates a new <code>BooleanExpression</code> that performs the conditional AND-operation on this <code>BooleanExpression</code> and a <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a>.</div> </td> </tr> <tr id="i1" class="rowColor"> <td class="colFirst"><code><a href="../../../javafx/beans/binding/ObjectExpression.html" title="class in javafx.beans.binding">ObjectExpression</a><java.lang.Boolean></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#asObject--">asObject</a></span>()</code> <div class="block">Creates an <a href="../../../javafx/beans/binding/ObjectExpression.html" title="class in javafx.beans.binding"><code>ObjectExpression</code></a> that holds the value of this <code>BooleanExpression</code>.</div> </td> </tr> <tr id="i2" class="altColor"> <td class="colFirst"><code><a href="../../../javafx/beans/binding/StringBinding.html" title="class in javafx.beans.binding">StringBinding</a></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#asString--">asString</a></span>()</code> <div class="block">Creates a <a href="../../../javafx/beans/binding/StringBinding.html" title="class in javafx.beans.binding"><code>StringBinding</code></a> that holds the value of this <code>BooleanExpression</code> turned into a <code>String</code>.</div> </td> </tr> <tr id="i3" class="rowColor"> <td class="colFirst"><code>static <a href="../../../javafx/beans/binding/BooleanExpression.html" title="class in javafx.beans.binding">BooleanExpression</a></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#booleanExpression-javafx.beans.value.ObservableBooleanValue-">booleanExpression</a></span>(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> value)</code> <div class="block">Returns a <code>BooleanExpression</code> that wraps a <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a>.</div> </td> </tr> <tr id="i4" class="altColor"> <td class="colFirst"><code>static <a href="../../../javafx/beans/binding/BooleanExpression.html" title="class in javafx.beans.binding">BooleanExpression</a></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#booleanExpression-javafx.beans.value.ObservableValue-">booleanExpression</a></span>(<a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a><java.lang.Boolean> value)</code> <div class="block">Returns a <code>BooleanExpression</code> that wraps an <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value"><code>ObservableValue</code></a>.</div> </td> </tr> <tr id="i5" class="rowColor"> <td class="colFirst"><code>java.lang.Boolean</code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#getValue--">getValue</a></span>()</code> <div class="block">Returns the current value of this <code>ObservableValue</code></div> </td> </tr> <tr id="i6" class="altColor"> <td class="colFirst"><code><a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#isEqualTo-javafx.beans.value.ObservableBooleanValue-">isEqualTo</a></span>(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> other)</code> <div class="block">Creates a new <code>BooleanExpression</code> that holds <code>true</code> if this and another <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a> are equal.</div> </td> </tr> <tr id="i7" class="rowColor"> <td class="colFirst"><code><a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#isNotEqualTo-javafx.beans.value.ObservableBooleanValue-">isNotEqualTo</a></span>(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> other)</code> <div class="block">Creates a new <code>BooleanExpression</code> that holds <code>true</code> if this and another <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a> are equal.</div> </td> </tr> <tr id="i8" class="altColor"> <td class="colFirst"><code><a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#not--">not</a></span>()</code> <div class="block">Creates a new <code>BooleanExpression</code> that calculates the negation of this <code>BooleanExpression</code>.</div> </td> </tr> <tr id="i9" class="rowColor"> <td class="colFirst"><code><a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a></code></td> <td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/BooleanExpression.html#or-javafx.beans.value.ObservableBooleanValue-">or</a></span>(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> other)</code> <div class="block">Creates a new <code>BooleanExpression</code> that performs the conditional OR-operation on this <code>BooleanExpression</code> and a <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a>.</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.beans.value.ObservableBooleanValue"> <!-- --> </a> <h3>Methods inherited from interface javafx.beans.value.<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a></h3> <code><a href="../../../javafx/beans/value/ObservableBooleanValue.html#get--">get</a></code></li> </ul> <ul class="blockList"> <li class="blockList"><a name="methods.inherited.from.class.javafx.beans.value.ObservableValue"> <!-- --> </a> <h3>Methods inherited from interface javafx.beans.value.<a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a></h3> <code><a href="../../../javafx/beans/value/ObservableValue.html#addListener-javafx.beans.value.ChangeListener-">addListener</a>, <a href="../../../javafx/beans/value/ObservableValue.html#removeListener-javafx.beans.value.ChangeListener-">removeListener</a></code></li> </ul> <ul class="blockList"> <li class="blockList"><a name="methods.inherited.from.class.javafx.beans.Observable"> <!-- --> </a> <h3>Methods inherited from interface javafx.beans.<a href="../../../javafx/beans/Observable.html" title="interface in javafx.beans">Observable</a></h3> <code><a href="../../../javafx/beans/Observable.html#addListener-javafx.beans.InvalidationListener-">addListener</a>, <a href="../../../javafx/beans/Observable.html#removeListener-javafx.beans.InvalidationListener-">removeListener</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="BooleanExpression--"> <!-- --> </a> <ul class="blockListLast"> <li class="blockList"> <h4>BooleanExpression</h4> <pre>public BooleanExpression()</pre> <div class="block">Sole constructor</div> </li> </ul> </li> </ul> <!-- ============ METHOD DETAIL ========== --> <ul class="blockList"> <li class="blockList"><a name="method.detail"> <!-- --> </a> <h3>Method Detail</h3> <a name="getValue--"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getValue</h4> <pre>public java.lang.Boolean getValue()</pre> <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../javafx/beans/value/ObservableValue.html#getValue--">ObservableValue</a></code></span></div> <div class="block">Returns the current value of this <code>ObservableValue</code></div> <dl> <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> <dd><code><a href="../../../javafx/beans/value/ObservableValue.html#getValue--">getValue</a></code> in interface <code><a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a><java.lang.Boolean></code></dd> <dt><span class="returnLabel">Returns:</span></dt> <dd>The current value</dd> </dl> </li> </ul> <a name="booleanExpression-javafx.beans.value.ObservableBooleanValue-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>booleanExpression</h4> <pre>public static <a href="../../../javafx/beans/binding/BooleanExpression.html" title="class in javafx.beans.binding">BooleanExpression</a> booleanExpression(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> value)</pre> <div class="block">Returns a <code>BooleanExpression</code> that wraps a <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a>. If the <code>ObservableBooleanValue</code> is already a <code>BooleanExpression</code>, it will be returned. Otherwise a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> is created that is bound to the <code>ObservableBooleanValue</code>.</div> <dl> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>value</code> - The source <code>ObservableBooleanValue</code></dd> <dt><span class="returnLabel">Returns:</span></dt> <dd>A <code>BooleanExpression</code> that wraps the <code>ObservableBooleanValue</code> if necessary</dd> <dt><span class="throwsLabel">Throws:</span></dt> <dd><code>java.lang.NullPointerException</code> - if <code>value</code> is <code>null</code></dd> </dl> </li> </ul> <a name="booleanExpression-javafx.beans.value.ObservableValue-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>booleanExpression</h4> <pre>public static <a href="../../../javafx/beans/binding/BooleanExpression.html" title="class in javafx.beans.binding">BooleanExpression</a> booleanExpression(<a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a><java.lang.Boolean> value)</pre> <div class="block">Returns a <code>BooleanExpression</code> that wraps an <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value"><code>ObservableValue</code></a>. If the <code>ObservableValue</code> is already a <code>BooleanExpression</code>, it will be returned. Otherwise a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> is created that is bound to the <code>ObservableValue</code>. Note: null values will be interpreted as "false".</div> <dl> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>value</code> - The source <code>ObservableValue</code></dd> <dt><span class="returnLabel">Returns:</span></dt> <dd>A <code>BooleanExpression</code> that wraps the <code>ObservableValue</code> if necessary</dd> <dt><span class="throwsLabel">Throws:</span></dt> <dd><code>java.lang.NullPointerException</code> - if <code>value</code> is <code>null</code></dd> <dt><span class="simpleTagLabel">Since:</span></dt> <dd>JavaFX 8.0</dd> </dl> </li> </ul> <a name="and-javafx.beans.value.ObservableBooleanValue-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>and</h4> <pre>public <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a> and(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> other)</pre> <div class="block">Creates a new <code>BooleanExpression</code> that performs the conditional AND-operation on this <code>BooleanExpression</code> and a <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a>.</div> <dl> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>other</code> - the other <code>ObservableBooleanValue</code></dd> <dt><span class="returnLabel">Returns:</span></dt> <dd>the new <code>BooleanExpression</code></dd> <dt><span class="throwsLabel">Throws:</span></dt> <dd><code>java.lang.NullPointerException</code> - if <code>other</code> is <code>null</code></dd> </dl> </li> </ul> <a name="or-javafx.beans.value.ObservableBooleanValue-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>or</h4> <pre>public <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a> or(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> other)</pre> <div class="block">Creates a new <code>BooleanExpression</code> that performs the conditional OR-operation on this <code>BooleanExpression</code> and a <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a>.</div> <dl> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>other</code> - the other <code>ObservableBooleanValue</code></dd> <dt><span class="returnLabel">Returns:</span></dt> <dd>the new <code>BooleanExpression</code></dd> <dt><span class="throwsLabel">Throws:</span></dt> <dd><code>java.lang.NullPointerException</code> - if <code>other</code> is <code>null</code></dd> </dl> </li> </ul> <a name="not--"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>not</h4> <pre>public <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a> not()</pre> <div class="block">Creates a new <code>BooleanExpression</code> that calculates the negation of this <code>BooleanExpression</code>.</div> <dl> <dt><span class="returnLabel">Returns:</span></dt> <dd>the new <code>BooleanExpression</code></dd> </dl> </li> </ul> <a name="isEqualTo-javafx.beans.value.ObservableBooleanValue-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>isEqualTo</h4> <pre>public <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a> isEqualTo(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> other)</pre> <div class="block">Creates a new <code>BooleanExpression</code> that holds <code>true</code> if this and another <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a> are equal.</div> <dl> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>other</code> - the other <code>ObservableBooleanValue</code></dd> <dt><span class="returnLabel">Returns:</span></dt> <dd>the new <code>BooleanExpression</code></dd> <dt><span class="throwsLabel">Throws:</span></dt> <dd><code>java.lang.NullPointerException</code> - if <code>other</code> is <code>null</code></dd> </dl> </li> </ul> <a name="isNotEqualTo-javafx.beans.value.ObservableBooleanValue-"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>isNotEqualTo</h4> <pre>public <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a> isNotEqualTo(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a> other)</pre> <div class="block">Creates a new <code>BooleanExpression</code> that holds <code>true</code> if this and another <a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a> are equal.</div> <dl> <dt><span class="paramLabel">Parameters:</span></dt> <dd><code>other</code> - the other <code>ObservableBooleanValue</code></dd> <dt><span class="returnLabel">Returns:</span></dt> <dd>the new <code>BooleanExpression</code></dd> <dt><span class="throwsLabel">Throws:</span></dt> <dd><code>java.lang.NullPointerException</code> - if <code>other</code> is <code>null</code></dd> </dl> </li> </ul> <a name="asString--"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>asString</h4> <pre>public <a href="../../../javafx/beans/binding/StringBinding.html" title="class in javafx.beans.binding">StringBinding</a> asString()</pre> <div class="block">Creates a <a href="../../../javafx/beans/binding/StringBinding.html" title="class in javafx.beans.binding"><code>StringBinding</code></a> that holds the value of this <code>BooleanExpression</code> turned into a <code>String</code>. If the value of this <code>BooleanExpression</code> changes, the value of the <code>StringBinding</code> will be updated automatically.</div> <dl> <dt><span class="returnLabel">Returns:</span></dt> <dd>the new <code>StringBinding</code></dd> </dl> </li> </ul> <a name="asObject--"> <!-- --> </a> <ul class="blockListLast"> <li class="blockList"> <h4>asObject</h4> <pre>public <a href="../../../javafx/beans/binding/ObjectExpression.html" title="class in javafx.beans.binding">ObjectExpression</a><java.lang.Boolean> asObject()</pre> <div class="block">Creates an <a href="../../../javafx/beans/binding/ObjectExpression.html" title="class in javafx.beans.binding"><code>ObjectExpression</code></a> that holds the value of this <code>BooleanExpression</code>. If the value of this <code>BooleanExpression</code> changes, the value of the <code>ObjectExpression</code> will be updated automatically.</div> <dl> <dt><span class="returnLabel">Returns:</span></dt> <dd>the new <code>ObjectExpression</code></dd> <dt><span class="simpleTagLabel">Since:</span></dt> <dd>JavaFX 8.0</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/BooleanExpression.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/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><span class="typeNameLink">Prev Class</span></a></li> <li><a href="../../../javafx/beans/binding/DoubleBinding.html" title="class in javafx.beans.binding"><span class="typeNameLink">Next Class</span></a></li> </ul> <ul class="navList"> <li><a href="../../../index.html?javafx/beans/binding/BooleanExpression.html" target="_top">Frames</a></li> <li><a href="BooleanExpression.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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