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<h2 title="Class SetChangeListener.Change" class="title">Class SetChangeListener.Change&lt;E&gt;</h2>
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<li>javafx.collections.SetChangeListener.Change&lt;E&gt;</li>
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<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>E</code> - element type</dd>
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<dt>Enclosing interface:</dt>
<dd><a href="../../javafx/collections/SetChangeListener.html" title="interface in javafx.collections">SetChangeListener</a>&lt;<a href="../../javafx/collections/SetChangeListener.html" title="type parameter in SetChangeListener">E</a>&gt;</dd>
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<pre>public abstract static class <span class="typeNameLabel">SetChangeListener.Change&lt;E&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></pre>
<div class="block">An elementary change done to an ObservableSet.
 Change contains information about an add or remove operation.
 Note that adding element that is already in the set does not
 modify the set and hence no change will be generated.</div>
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<dd>JavaFX 2.1</dd>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javafx/collections/SetChangeListener.Change.html#Change-javafx.collections.ObservableSet-">Change</a></span>(<a href="../../javafx/collections/ObservableSet.html" title="interface in javafx.collections">ObservableSet</a>&lt;<a href="../../javafx/collections/SetChangeListener.Change.html" title="type parameter in SetChangeListener.Change">E</a>&gt;&nbsp;set)</code>
<div class="block">Constructs a change associated with a set.</div>
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<td class="colFirst"><code>abstract <a href="../../javafx/collections/SetChangeListener.Change.html" title="type parameter in SetChangeListener.Change">E</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/SetChangeListener.Change.html#getElementAdded--">getElementAdded</a></span>()</code>
<div class="block">Get the new element.</div>
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<td class="colFirst"><code>abstract <a href="../../javafx/collections/SetChangeListener.Change.html" title="type parameter in SetChangeListener.Change">E</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/SetChangeListener.Change.html#getElementRemoved--">getElementRemoved</a></span>()</code>
<div class="block">Get the old element.</div>
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<td class="colFirst"><code><a href="../../javafx/collections/ObservableSet.html" title="interface in javafx.collections">ObservableSet</a>&lt;<a href="../../javafx/collections/SetChangeListener.Change.html" title="type parameter in SetChangeListener.Change">E</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/SetChangeListener.Change.html#getSet--">getSet</a></span>()</code>
<div class="block">An observable set that is associated with the change.</div>
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<td class="colFirst"><code>abstract boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/SetChangeListener.Change.html#wasAdded--">wasAdded</a></span>()</code>
<div class="block">If this change is a result of add operation.</div>
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<td class="colFirst"><code>abstract boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/collections/SetChangeListener.Change.html#wasRemoved--">wasRemoved</a></span>()</code>
<div class="block">If this change is a result of removal operation.</div>
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<h4>Change</h4>
<pre>public&nbsp;Change(<a href="../../javafx/collections/ObservableSet.html" title="interface in javafx.collections">ObservableSet</a>&lt;<a href="../../javafx/collections/SetChangeListener.Change.html" title="type parameter in SetChangeListener.Change">E</a>&gt;&nbsp;set)</pre>
<div class="block">Constructs a change associated with a set.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>set</code> - the source of the change</dd>
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<h4>getSet</h4>
<pre>public&nbsp;<a href="../../javafx/collections/ObservableSet.html" title="interface in javafx.collections">ObservableSet</a>&lt;<a href="../../javafx/collections/SetChangeListener.Change.html" title="type parameter in SetChangeListener.Change">E</a>&gt;&nbsp;getSet()</pre>
<div class="block">An observable set that is associated with the change.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the source set</dd>
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<pre>public abstract&nbsp;boolean&nbsp;wasAdded()</pre>
<div class="block">If this change is a result of add operation.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if a new element was added to the set</dd>
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<pre>public abstract&nbsp;boolean&nbsp;wasRemoved()</pre>
<div class="block">If this change is a result of removal operation.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if an old element was removed from the set</dd>
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<pre>public abstract&nbsp;<a href="../../javafx/collections/SetChangeListener.Change.html" title="type parameter in SetChangeListener.Change">E</a>&nbsp;getElementAdded()</pre>
<div class="block">Get the new element. Return null if this is a removal.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the element that was just added</dd>
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<pre>public abstract&nbsp;<a href="../../javafx/collections/SetChangeListener.Change.html" title="type parameter in SetChangeListener.Change">E</a>&nbsp;getElementRemoved()</pre>
<div class="block">Get the old element. Return null if this is an addition.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the element that was just removed</dd>
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