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<h2 title="Interface EventDispatchChain" class="title">Interface EventDispatchChain</h2>
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<pre>public interface <span class="typeNameLabel">EventDispatchChain</span></pre>
<div class="block">Represents a chain of <code>EventDispatcher</code> objects, which can dispatch
 an <code>Event</code>. The event is dispatched by passing it from one
 <code>EventDispatcher</code> to the next in the chain until the end of chain is
 reached. Each <code>EventDispatcher</code> in the chain can influence the event
 path and the event itself. The chain is usually formed by following some
 parent - child hierarchy from the root to the event target and appending
 all <code>EventDispatcher</code> objects encountered to the chain.</div>
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<dd>JavaFX 2.0</dd>
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<td class="colFirst"><code><a href="../../javafx/event/EventDispatchChain.html" title="interface in javafx.event">EventDispatchChain</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/event/EventDispatchChain.html#append-javafx.event.EventDispatcher-">append</a></span>(<a href="../../javafx/event/EventDispatcher.html" title="interface in javafx.event">EventDispatcher</a>&nbsp;eventDispatcher)</code>
<div class="block">Appends the specified <code>EventDispatcher</code> to this chain.</div>
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<td class="colFirst"><code><a href="../../javafx/event/Event.html" title="class in javafx.event">Event</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/event/EventDispatchChain.html#dispatchEvent-javafx.event.Event-">dispatchEvent</a></span>(<a href="../../javafx/event/Event.html" title="class in javafx.event">Event</a>&nbsp;event)</code>
<div class="block">Dispatches the specified event through this <code>EventDispatchChain</code>.</div>
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<td class="colFirst"><code><a href="../../javafx/event/EventDispatchChain.html" title="interface in javafx.event">EventDispatchChain</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/event/EventDispatchChain.html#prepend-javafx.event.EventDispatcher-">prepend</a></span>(<a href="../../javafx/event/EventDispatcher.html" title="interface in javafx.event">EventDispatcher</a>&nbsp;eventDispatcher)</code>
<div class="block">Prepends the specified <code>EventDispatcher</code> to this chain.</div>
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<h4>append</h4>
<pre><a href="../../javafx/event/EventDispatchChain.html" title="interface in javafx.event">EventDispatchChain</a>&nbsp;append(<a href="../../javafx/event/EventDispatcher.html" title="interface in javafx.event">EventDispatcher</a>&nbsp;eventDispatcher)</pre>
<div class="block">Appends the specified <code>EventDispatcher</code> to this chain. Returns a
 reference to the chain with the appended element.
 <p>
 The caller shouldn't assume that this <code>EventDispatchChain</code> remains
 unchanged nor that the returned value will reference a different chain
 after the call. All this depends on the <code>EventDispatchChain</code>
 implementation.
 <p>
 So the call should be always done in the following form:
 <code>chain = chain.append(eventDispatcher);</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>eventDispatcher</code> - the <code>EventDispatcher</code> to append to the
      chain</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the chain with the appended event dispatcher</dd>
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<h4>prepend</h4>
<pre><a href="../../javafx/event/EventDispatchChain.html" title="interface in javafx.event">EventDispatchChain</a>&nbsp;prepend(<a href="../../javafx/event/EventDispatcher.html" title="interface in javafx.event">EventDispatcher</a>&nbsp;eventDispatcher)</pre>
<div class="block">Prepends the specified <code>EventDispatcher</code> to this chain. Returns a
 reference to the chain with the prepended element.
 <p>
 The caller shouldn't assume that this <code>EventDispatchChain</code> remains
 unchanged nor that the returned value will reference a different chain
 after the call. All this depends on the <code>EventDispatchChain</code>
 implementation.
 <p>
 So the call should be always done in the following form:
 <code>chain = chain.prepend(eventDispatcher);</code></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>eventDispatcher</code> - the <code>EventDispatcher</code> to prepend to the
      chain</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the chain with the prepended event dispatcher</dd>
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<h4>dispatchEvent</h4>
<pre><a href="../../javafx/event/Event.html" title="class in javafx.event">Event</a>&nbsp;dispatchEvent(<a href="../../javafx/event/Event.html" title="class in javafx.event">Event</a>&nbsp;event)</pre>
<div class="block">Dispatches the specified event through this <code>EventDispatchChain</code>.
 The return value represents the event after processing done by the chain.
 If further processing is to be done after the call the event referenced
 by the return value should be used instead of the original event. In the
 case the event is fully handled / consumed in the chain the returned
 value is <code>null</code> and no further processing should be done with that
 event.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>event</code> - the event to dispatch</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the processed event or <code>null</code> if the event had been fully
      handled / consumed</dd>
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