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<div class="subTitle">javafx.beans.binding</div>
<h2 title="Class MapExpression" class="title">Class MapExpression&lt;K,V&gt;</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<li>javafx.beans.binding.MapExpression&lt;K,V&gt;</li>
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<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>K</code> - the type of the key elements</dd>
<dd><code>V</code> - the type of the value elements</dd>
</dl>
<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;K,V&gt;, <a href="../../../javafx/beans/Observable.html" title="interface in javafx.beans">Observable</a>, <a href="../../../javafx/beans/value/ObservableMapValue.html" title="interface in javafx.beans.value">ObservableMapValue</a>&lt;K,V&gt;, <a href="../../../javafx/beans/value/ObservableObjectValue.html" title="interface in javafx.beans.value">ObservableObjectValue</a>&lt;<a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;K,V&gt;&gt;, <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a>&lt;<a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;K,V&gt;&gt;, <a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;K,V&gt;</dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../javafx/beans/binding/MapBinding.html" title="class in javafx.beans.binding">MapBinding</a>, <a href="../../../javafx/beans/property/ReadOnlyMapProperty.html" title="class in javafx.beans.property">ReadOnlyMapProperty</a></dd>
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<pre>public abstract class <span class="typeNameLabel">MapExpression&lt;K,V&gt;</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/ObservableMapValue.html" title="interface in javafx.beans.value">ObservableMapValue</a>&lt;K,V&gt;</pre>
<div class="block">A <code>MapExpression</code> is a
 <a href="../../../javafx/beans/value/ObservableMapValue.html" title="interface in javafx.beans.value"><code>ObservableMapValue</code></a> plus additional convenience
 methods to generate bindings in a fluent style.
 <p>
 A concrete sub-class of <code>MapExpression</code> has to implement the method
 <a href="../../../javafx/beans/value/ObservableObjectValue.html#get--"><code>ObservableObjectValue.get()</code></a>, which provides the
 actual value of this expression.
 <p>
 If the wrapped list of a <code>MapExpression</code> is <code>null</code>, all methods implementing the <code>Map</code>
 interface will behave as if they were applied to an immutable empty list.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>JavaFX 2.1</dd>
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<td class="colFirst"><code>abstract <a href="../../../javafx/beans/property/ReadOnlyBooleanProperty.html" title="class in javafx.beans.property">ReadOnlyBooleanProperty</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#emptyProperty">empty</a></span></code>
<div class="block">A boolean property that is <code>true</code>, if the map is empty.</div>
</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>abstract <a href="../../../javafx/beans/property/ReadOnlyIntegerProperty.html" title="class in javafx.beans.property">ReadOnlyIntegerProperty</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#sizeProperty">size</a></span></code>
<div class="block">An integer property that represents the size of the map.</div>
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<h3>Nested classes/interfaces inherited from interface&nbsp;java.util.<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">K</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">V</a>&gt;</code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#MapExpression--">MapExpression</a></span>()</code>&nbsp;</td>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" 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/MapExpression.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 the <code>MapExpression</code> turned into a <code>String</code>.</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/beans/binding/MapExpression.html#clear--">clear</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#containsKey-java.lang.Object-">containsKey</a></span>(<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>&nbsp;obj)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#containsValue-java.lang.Object-">containsValue</a></span>(<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>&nbsp;obj)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>abstract <a href="../../../javafx/beans/property/ReadOnlyBooleanProperty.html" title="class in javafx.beans.property">ReadOnlyBooleanProperty</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#emptyProperty--">emptyProperty</a></span>()</code>
<div class="block">A boolean property that is <code>true</code>, if the map is empty.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#entrySet--">entrySet</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#get-java.lang.Object-">get</a></span>(<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>&nbsp;key)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#getSize--">getSize</a></span>()</code>
<div class="block">The size of the map</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#getValue--">getValue</a></span>()</code>
<div class="block">Returns the current value of this <code>ObservableValue</code></div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#isEmpty--">isEmpty</a></span>()</code>
<div class="block">Gets the value of the property empty.</div>
</td>
</tr>
<tr id="i10" 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/MapExpression.html#isEqualTo-javafx.collections.ObservableMap-">isEqualTo</a></span>(<a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;?,?&gt;&nbsp;other)</code>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> that holds <code>true</code> if this map is equal to
 another <a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections"><code>ObservableMap</code></a>.</div>
</td>
</tr>
<tr id="i11" 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/MapExpression.html#isNotEqualTo-javafx.collections.ObservableMap-">isNotEqualTo</a></span>(<a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;?,?&gt;&nbsp;other)</code>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> that holds <code>true</code> if this map is not equal to
 another <a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections"><code>ObservableMap</code></a>.</div>
</td>
</tr>
<tr id="i12" 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/MapExpression.html#isNotNull--">isNotNull</a></span>()</code>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> that holds <code>true</code> if the wrapped map is not <code>null</code>.</div>
</td>
</tr>
<tr id="i13" 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/MapExpression.html#isNull--">isNull</a></span>()</code>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> that holds <code>true</code> if the wrapped map is <code>null</code>.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#keySet--">keySet</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>static &lt;K,V&gt;&nbsp;<a href="../../../javafx/beans/binding/MapExpression.html" title="class in javafx.beans.binding">MapExpression</a>&lt;K,V&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#mapExpression-javafx.beans.value.ObservableMapValue-">mapExpression</a></span>(<a href="../../../javafx/beans/value/ObservableMapValue.html" title="interface in javafx.beans.value">ObservableMapValue</a>&lt;K,V&gt;&nbsp;value)</code>
<div class="block">Returns a <code>MapExpression</code> that wraps a
 <a href="../../../javafx/beans/value/ObservableMapValue.html" title="interface in javafx.beans.value"><code>ObservableMapValue</code></a>.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code><a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#put-K-V-">put</a></span>(<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>&nbsp;key,
   <a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&nbsp;value)</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#putAll-java.util.Map-">putAll</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;? extends <a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,? extends <a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;&nbsp;elements)</code>&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code><a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#remove-java.lang.Object-">remove</a></span>(<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>&nbsp;obj)</code>&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#size--">size</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>abstract <a href="../../../javafx/beans/property/ReadOnlyIntegerProperty.html" title="class in javafx.beans.property">ReadOnlyIntegerProperty</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#sizeProperty--">sizeProperty</a></span>()</code>
<div class="block">An integer property that represents the size of the map.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code><a href="../../../javafx/beans/binding/ObjectBinding.html" title="class in javafx.beans.binding">ObjectBinding</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#valueAt-K-">valueAt</a></span>(<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>&nbsp;key)</code>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/ObjectBinding.html" title="class in javafx.beans.binding"><code>ObjectBinding</code></a> that contains the mapping of the specified key.</div>
</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code><a href="../../../javafx/beans/binding/ObjectBinding.html" title="class in javafx.beans.binding">ObjectBinding</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../javafx/beans/binding/MapExpression.html#valueAt-javafx.beans.value.ObservableValue-">valueAt</a></span>(<a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>&gt;&nbsp;key)</code>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/ObjectBinding.html" title="class in javafx.beans.binding"><code>ObjectBinding</code></a> that contains the mapping of the specified key.</div>
</td>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;</code></td>
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<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/ObservableObjectValue.html" title="interface in javafx.beans.value">ObservableObjectValue</a></h3>
<code><a href="../../../javafx/beans/value/ObservableObjectValue.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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<h3>Methods inherited from interface&nbsp;javafx.collections.<a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a></h3>
<code><a href="../../../javafx/collections/ObservableMap.html#addListener-javafx.collections.MapChangeListener-">addListener</a>, <a href="../../../javafx/collections/ObservableMap.html#removeListener-javafx.collections.MapChangeListener-">removeListener</a></code></li>
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<code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#compute-K-java.util.function.BiFunction-" title="class or interface in java.util">compute</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#computeIfAbsent-K-java.util.function.Function-" title="class or interface in java.util">computeIfAbsent</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#computeIfPresent-K-java.util.function.BiFunction-" title="class or interface in java.util">computeIfPresent</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.util">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#forEach-java.util.function.BiConsumer-" title="class or interface in java.util">forEach</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#getOrDefault-java.lang.Object-V-" title="class or interface in java.util">getOrDefault</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#hashCode--" title="class or interface in java.util">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#merge-K-V-java.util.function.BiFunction-" title="class or interface in java.util">merge</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#putIfAbsent-K-V-" title="class or interface in java.util">putIfAbsent</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#remove-java.lang.Object-java.lang.Object-" title="class or interface in java.util">remove</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#replace-K-V-" title="class or interface in java.util">replace</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#replace-K-V-V-" title="class or interface in java.util">replace</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#replaceAll-java.util.function.BiFunction-" title="class or interface in java.util">replaceAll</a></code></li>
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<pre>public abstract&nbsp;<a href="../../../javafx/beans/property/ReadOnlyIntegerProperty.html" title="class in javafx.beans.property">ReadOnlyIntegerProperty</a> sizeProperty</pre>
<div class="block">An integer property that represents the size of the map.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../javafx/beans/binding/MapExpression.html#getSize--"><code>getSize()</code></a></dd>
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<pre>public abstract&nbsp;<a href="../../../javafx/beans/property/ReadOnlyBooleanProperty.html" title="class in javafx.beans.property">ReadOnlyBooleanProperty</a> emptyProperty</pre>
<div class="block">A boolean property that is <code>true</code>, if the map is empty.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../javafx/beans/binding/MapExpression.html#isEmpty--"><code>isEmpty()</code></a></dd>
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<pre>public&nbsp;MapExpression()</pre>
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<pre>public&nbsp;<a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;&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="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;&gt;</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The current value</dd>
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<pre>public static&nbsp;&lt;K,V&gt;&nbsp;<a href="../../../javafx/beans/binding/MapExpression.html" title="class in javafx.beans.binding">MapExpression</a>&lt;K,V&gt;&nbsp;mapExpression(<a href="../../../javafx/beans/value/ObservableMapValue.html" title="interface in javafx.beans.value">ObservableMapValue</a>&lt;K,V&gt;&nbsp;value)</pre>
<div class="block">Returns a <code>MapExpression</code> that wraps a
 <a href="../../../javafx/beans/value/ObservableMapValue.html" title="interface in javafx.beans.value"><code>ObservableMapValue</code></a>. If the
 <code>ObservableMapValue</code> is already a <code>MapExpression</code>, it
 will be returned. Otherwise a new
 <a href="../../../javafx/beans/binding/MapBinding.html" title="class in javafx.beans.binding"><code>MapBinding</code></a> is created that is bound to
 the <code>ObservableMapValue</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>value</code> - The source <code>ObservableMapValue</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A <code>MapExpression</code> that wraps the
         <code>ObservableMapValue</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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<pre>public&nbsp;int&nbsp;getSize()</pre>
<div class="block">The size of the map</div>
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<pre>public abstract&nbsp;<a href="../../../javafx/beans/property/ReadOnlyIntegerProperty.html" title="class in javafx.beans.property">ReadOnlyIntegerProperty</a>&nbsp;sizeProperty()</pre>
<div class="block">An integer property that represents the size of the map.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../javafx/beans/binding/MapExpression.html#getSize--"><code>getSize()</code></a></dd>
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<pre>public abstract&nbsp;<a href="../../../javafx/beans/property/ReadOnlyBooleanProperty.html" title="class in javafx.beans.property">ReadOnlyBooleanProperty</a>&nbsp;emptyProperty()</pre>
<div class="block">A boolean property that is <code>true</code>, if the map is empty.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../javafx/beans/binding/MapExpression.html#isEmpty--"><code>isEmpty()</code></a></dd>
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<pre>public&nbsp;<a href="../../../javafx/beans/binding/ObjectBinding.html" title="class in javafx.beans.binding">ObjectBinding</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;&nbsp;valueAt(<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>&nbsp;key)</pre>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/ObjectBinding.html" title="class in javafx.beans.binding"><code>ObjectBinding</code></a> that contains the mapping of the specified key.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - the key of the mapping</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>ObjectBinding</code></dd>
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<pre>public&nbsp;<a href="../../../javafx/beans/binding/ObjectBinding.html" title="class in javafx.beans.binding">ObjectBinding</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;&nbsp;valueAt(<a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>&gt;&nbsp;key)</pre>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/ObjectBinding.html" title="class in javafx.beans.binding"><code>ObjectBinding</code></a> that contains the mapping of the specified key.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - the key of the mapping</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>ObjectBinding</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>key</code> is <code>null</code></dd>
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<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;isEqualTo(<a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;?,?&gt;&nbsp;other)</pre>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> that holds <code>true</code> if this map is equal to
 another <a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections"><code>ObservableMap</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>other</code> - the other <code>ObservableMap</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the new <code>BooleanBinding</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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<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;isNotEqualTo(<a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections">ObservableMap</a>&lt;?,?&gt;&nbsp;other)</pre>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> that holds <code>true</code> if this map is not equal to
 another <a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections"><code>ObservableMap</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>other</code> - the other <code>ObservableMap</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the new <code>BooleanBinding</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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<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;isNull()</pre>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> that holds <code>true</code> if the wrapped map is <code>null</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the new <code>BooleanBinding</code></dd>
</dl>
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<pre>public&nbsp;<a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding">BooleanBinding</a>&nbsp;isNotNull()</pre>
<div class="block">Creates a new <a href="../../../javafx/beans/binding/BooleanBinding.html" title="class in javafx.beans.binding"><code>BooleanBinding</code></a> that holds <code>true</code> if the wrapped map is not <code>null</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the new <code>BooleanBinding</code></dd>
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<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 the <code>MapExpression</code> turned into a <code>String</code>. If the
 value of this <code>MapExpression</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>
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<pre>public&nbsp;int&nbsp;size()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#size--" title="class or interface in java.util">size</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;</code></dd>
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<pre>public&nbsp;boolean&nbsp;isEmpty()</pre>
<div class="block">Gets the value of the property empty.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#isEmpty--" title="class or interface in java.util">isEmpty</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;</code></dd>
<dt><span class="simpleTagLabel">Property description:</span></dt>
<dd>A boolean property that is <code>true</code>, if the map is empty.</dd>
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<pre>public&nbsp;boolean&nbsp;containsKey(<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>&nbsp;obj)</pre>
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<pre>public&nbsp;boolean&nbsp;containsValue(<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>&nbsp;obj)</pre>
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<pre>public&nbsp;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&nbsp;put(<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>&nbsp;key,
             <a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&nbsp;value)</pre>
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<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true#put-K-V-" title="class or interface in java.util">put</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;</code></dd>
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<pre>public&nbsp;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&nbsp;remove(<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>&nbsp;obj)</pre>
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<pre>public&nbsp;void&nbsp;putAll(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;? extends <a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>,? extends <a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;&nbsp;elements)</pre>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">K</a>&gt;&nbsp;keySet()</pre>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&gt;&nbsp;values()</pre>
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<pre>public&nbsp;<a href="../../../javafx/beans/binding/MapExpression.html" title="type parameter in MapExpression">V</a>&nbsp;get(<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>&nbsp;key)</pre>
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