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<h2 title="Enum Worker.State" class="title">Enum Worker.State</h2>
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<dt>All Implemented Interfaces:</dt>
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<dt>Enclosing interface:</dt>
<dd><a href="../../javafx/concurrent/Worker.html" title="interface in javafx.concurrent">Worker</a>&lt;<a href="../../javafx/concurrent/Worker.html" title="type parameter in Worker">V</a>&gt;</dd>
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<pre>public static enum <span class="typeNameLabel">Worker.State</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a>&lt;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a>&gt;</pre>
<div class="block"><p>
     The state of a Worker. The state transitions in a Worker are very well defined.
     All Workers begin in the READY state. In some circumstances, a Worker might
     be scheduled for execution before it is actually executed. In such cases,
     it is sometimes useful to know when the Worker has been SCHEDULED separately
     from when it is RUNNING. However even in cases where the Worker is executed
     immediately, the Worker will temporarily enter the SCHEDULED state before
     entering the RUNNING state. That is, the transition is always from
     READY to SCHEDULED to RUNNING (unless of course the Worker in cancelled).
 </p>
 <p>
     A Worker which runs but is never cancelled can only end up in one of two
     states, either SUCCEEDED or FAILED. It only enters FAILED if an exception
     was thrown during the execution of the Worker. A Worker may be cancelled when
     READY, SCHEDULED, or RUNNING, in which case the final status will be CANCELLED.
     When a Worker is cancelled in one of these circumstances it will transition
     immediately to the CANCELLED state.
 </p>
 <p>
     A reusable Worker will transition from CANCELLED, SUCCEEDED or FAILED back to
     READY. From that point the normal state transitions are again followed.
 </p></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>JavaFX 2.0</dd>
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<caption><span>Enum Constants</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colOne" scope="col">Enum Constant and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javafx/concurrent/Worker.State.html#CANCELLED">CANCELLED</a></span></code>
<div class="block">Indicates that this Worker has been cancelled via the <a href="../../javafx/concurrent/Worker.html#cancel--"><code>Worker.cancel()</code></a>
 method.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../javafx/concurrent/Worker.State.html#FAILED">FAILED</a></span></code>
<div class="block">Indicates that this Worker has failed, usually due to some unexpected
 condition having occurred.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../javafx/concurrent/Worker.State.html#READY">READY</a></span></code>
<div class="block">Indicates that the Worker has not yet been executed and is ready
 to be executed, or that it has been reinitialized.</div>
</td>
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<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../javafx/concurrent/Worker.State.html#RUNNING">RUNNING</a></span></code>
<div class="block">Indicates that this Worker is running.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javafx/concurrent/Worker.State.html#SCHEDULED">SCHEDULED</a></span></code>
<div class="block">Indicates that the Worker has been scheduled for execution, but
 that it is not currently running.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javafx/concurrent/Worker.State.html#SUCCEEDED">SUCCEEDED</a></span></code>
<div class="block">Indicates that this Worker has completed successfully, and that there
 is a valid result ready to be read from the <code>value</code> property.</div>
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<td class="colFirst"><code>static <a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/concurrent/Worker.State.html#valueOf-java.lang.String-">valueOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</code>
<div class="block">Returns the enum constant of this type with the specified name.</div>
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<td class="colFirst"><code>static <a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javafx/concurrent/Worker.State.html#values--">values</a></span>()</code>
<div class="block">Returns an array containing the constants of this enum type, in
the order they are declared.</div>
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<h4>READY</h4>
<pre>public static final&nbsp;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a> READY</pre>
<div class="block">Indicates that the Worker has not yet been executed and is ready
 to be executed, or that it has been reinitialized. This is the
 default initial state of the Worker.</div>
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<a name="SCHEDULED">
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<h4>SCHEDULED</h4>
<pre>public static final&nbsp;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a> SCHEDULED</pre>
<div class="block">Indicates that the Worker has been scheduled for execution, but
 that it is not currently running. This might be because the
 Worker is waiting for a thread in a thread pool to become
 available before it can start running.</div>
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<h4>RUNNING</h4>
<pre>public static final&nbsp;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a> RUNNING</pre>
<div class="block">Indicates that this Worker is running. This is set just immediately
 prior to the Worker actually doing its first bit of work.</div>
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<h4>SUCCEEDED</h4>
<pre>public static final&nbsp;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a> SUCCEEDED</pre>
<div class="block">Indicates that this Worker has completed successfully, and that there
 is a valid result ready to be read from the <code>value</code> property.</div>
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<h4>CANCELLED</h4>
<pre>public static final&nbsp;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a> CANCELLED</pre>
<div class="block">Indicates that this Worker has been cancelled via the <a href="../../javafx/concurrent/Worker.html#cancel--"><code>Worker.cancel()</code></a>
 method.</div>
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<h4>FAILED</h4>
<pre>public static final&nbsp;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a> FAILED</pre>
<div class="block">Indicates that this Worker has failed, usually due to some unexpected
 condition having occurred. The exception can be retrieved from the
 <code>exception</code> property.</div>
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<pre>public static&nbsp;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a>[]&nbsp;values()</pre>
<div class="block">Returns an array containing the constants of this enum type, in
the order they are declared.  This method may be used to iterate
over the constants as follows:
<pre>
for (Worker.State c : Worker.State.values())
&nbsp;   System.out.println(c);
</pre></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an array containing the constants of this enum type, in the order they are declared</dd>
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<pre>public static&nbsp;<a href="../../javafx/concurrent/Worker.State.html" title="enum in javafx.concurrent">Worker.State</a>&nbsp;valueOf(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</pre>
<div class="block">Returns the enum constant of this type with the specified name.
The string must match <i>exactly</i> an identifier used to declare an
enum constant in this type.  (Extraneous whitespace characters are 
not permitted.)</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - the name of the enum constant to be returned.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the enum constant with the specified name</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd>
<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 the argument is null</dd>
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