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<h2 title="Class BooleanExpression" class="title">Class BooleanExpression</h2>
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<li>javafx.beans.binding.BooleanExpression</li>
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<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>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&gt;</dd>
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<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>
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<pre>public abstract class <span class="typeNameLabel">BooleanExpression</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
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>
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<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>JavaFX 2.0</dd>
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<th class="colOne" scope="col">Constructor and Description</th>
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<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>
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<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>&nbsp;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>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&gt;</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>
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<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>&nbsp;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>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&gt;&nbsp;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><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a></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>&nbsp;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>&nbsp;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>&nbsp;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>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;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>
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<h3>Methods inherited from interface&nbsp;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>
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<h3>Methods inherited from interface&nbsp;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>
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<h4>BooleanExpression</h4>
<pre>public&nbsp;BooleanExpression()</pre>
<div class="block">Sole constructor</div>
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<h4>getValue</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&nbsp;getValue()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<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>&nbsp;in interface&nbsp;<code><a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&gt;</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The current value</dd>
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<pre>public static&nbsp;<a href="../../../javafx/beans/binding/BooleanExpression.html" title="class in javafx.beans.binding">BooleanExpression</a>&nbsp;booleanExpression(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a>&nbsp;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><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if <code>value</code> is <code>null</code></dd>
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<h4>booleanExpression</h4>
<pre>public static&nbsp;<a href="../../../javafx/beans/binding/BooleanExpression.html" title="class in javafx.beans.binding">BooleanExpression</a>&nbsp;booleanExpression(<a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&gt;&nbsp;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><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></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>
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<h4>and</h4>
<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;and(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a>&nbsp;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><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if <code>other</code> is <code>null</code></dd>
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<h4>or</h4>
<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;or(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a>&nbsp;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><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if <code>other</code> is <code>null</code></dd>
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<h4>not</h4>
<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;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>
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<h4>isEqualTo</h4>
<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;isEqualTo(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a>&nbsp;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><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if <code>other</code> is <code>null</code></dd>
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<h4>isNotEqualTo</h4>
<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;isNotEqualTo(<a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a>&nbsp;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><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if <code>other</code> is <code>null</code></dd>
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<h4>asString</h4>
<pre>public&nbsp;<a href="../../../javafx/beans/binding/StringBinding.html" title="class in javafx.beans.binding">StringBinding</a>&nbsp;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>
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<pre>public&nbsp;<a href="../../../javafx/beans/binding/ObjectExpression.html" title="class in javafx.beans.binding">ObjectExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang">Boolean</a>&gt;&nbsp;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>
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