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<h1 title="Package" class="title">Package&nbsp;javafx.beans.value</h1>
<div class="docSummary">
<div class="block">The package <code>javafx.beans.value</code> contains the two
                fundamental interfaces <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value"><code>ObservableValue</code></a> and <a href="../../../javafx/beans/value/WritableValue.html" title="interface in javafx.beans.value"><code>WritableValue</code></a> and all of its sub-interfaces.</div>
</div>
<p>See:&nbsp;<a href="#package.description">Description</a></p>
</div>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation">
<caption><span>Interface Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Interface</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ChangeListener.html" title="interface in javafx.beans.value">ChangeListener</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">A <code>ChangeListener</code> is notified whenever the value of an
 <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value"><code>ObservableValue</code></a> changes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value">ObservableBooleanValue</a></td>
<td class="colLast">
<div class="block">An observable boolean value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableDoubleValue.html" title="interface in javafx.beans.value">ObservableDoubleValue</a></td>
<td class="colLast">
<div class="block">An observable double value.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableFloatValue.html" title="interface in javafx.beans.value">ObservableFloatValue</a></td>
<td class="colLast">
<div class="block">An observable float value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableIntegerValue.html" title="interface in javafx.beans.value">ObservableIntegerValue</a></td>
<td class="colLast">
<div class="block">An observable integer value.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableListValue.html" title="interface in javafx.beans.value">ObservableListValue</a>&lt;E&gt;</td>
<td class="colLast">
<div class="block">An observable reference to an <a href="../../../javafx/collections/ObservableList.html" title="interface in javafx.collections"><code>ObservableList</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableLongValue.html" title="interface in javafx.beans.value">ObservableLongValue</a></td>
<td class="colLast">
<div class="block">An observable long value.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableMapValue.html" title="interface in javafx.beans.value">ObservableMapValue</a>&lt;K,V&gt;</td>
<td class="colLast">
<div class="block">An observable reference to an <a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections"><code>ObservableMap</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableNumberValue.html" title="interface in javafx.beans.value">ObservableNumberValue</a></td>
<td class="colLast">
<div class="block">A common interface of all sub-interfaces of <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value"><code>ObservableValue</code></a> that wrap
 a number.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableObjectValue.html" title="interface in javafx.beans.value">ObservableObjectValue</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">An observable typed <code>Object</code> value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableSetValue.html" title="interface in javafx.beans.value">ObservableSetValue</a>&lt;E&gt;</td>
<td class="colLast">
<div class="block">An observable reference to an <a href="../../../javafx/collections/ObservableSet.html" title="interface in javafx.collections"><code>ObservableSet</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableStringValue.html" title="interface in javafx.beans.value">ObservableStringValue</a></td>
<td class="colLast">
<div class="block">An observable String value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value">ObservableValue</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">An <code>ObservableValue</code> is an entity that wraps a value and allows to
 observe the value for changes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableBooleanValue.html" title="interface in javafx.beans.value">WritableBooleanValue</a></td>
<td class="colLast">
<div class="block">A writable boolean value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableDoubleValue.html" title="interface in javafx.beans.value">WritableDoubleValue</a></td>
<td class="colLast">
<div class="block">A writable double value.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableFloatValue.html" title="interface in javafx.beans.value">WritableFloatValue</a></td>
<td class="colLast">
<div class="block">A writable float value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableIntegerValue.html" title="interface in javafx.beans.value">WritableIntegerValue</a></td>
<td class="colLast">
<div class="block">A writable int value.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableListValue.html" title="interface in javafx.beans.value">WritableListValue</a>&lt;E&gt;</td>
<td class="colLast">
<div class="block">A writable reference to an <a href="../../../javafx/collections/ObservableList.html" title="interface in javafx.collections"><code>ObservableList</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableLongValue.html" title="interface in javafx.beans.value">WritableLongValue</a></td>
<td class="colLast">
<div class="block">A writable long value.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableMapValue.html" title="interface in javafx.beans.value">WritableMapValue</a>&lt;K,V&gt;</td>
<td class="colLast">
<div class="block">A writable reference to an <a href="../../../javafx/collections/ObservableMap.html" title="interface in javafx.collections"><code>ObservableMap</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableNumberValue.html" title="interface in javafx.beans.value">WritableNumberValue</a></td>
<td class="colLast">
<div class="block">A tagging interface that marks all sub-interfaces of <a href="../../../javafx/beans/value/WritableValue.html" title="interface in javafx.beans.value"><code>WritableValue</code></a>
 that wrap a number.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableObjectValue.html" title="interface in javafx.beans.value">WritableObjectValue</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">A writable typed value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableSetValue.html" title="interface in javafx.beans.value">WritableSetValue</a>&lt;E&gt;</td>
<td class="colLast">
<div class="block">A writable reference to an <a href="../../../javafx/collections/ObservableSet.html" title="interface in javafx.collections"><code>ObservableSet</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableStringValue.html" title="interface in javafx.beans.value">WritableStringValue</a></td>
<td class="colLast">
<div class="block">A writable String.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WritableValue.html" title="interface in javafx.beans.value">WritableValue</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">A <code>WritableValue</code> is an entity that wraps a value that can be read and
 set.</div>
</td>
</tr>
</tbody>
</table>
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<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../javafx/beans/value/ObservableValueBase.html" title="class in javafx.beans.value">ObservableValueBase</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">A convenience class for creating implementations of <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value"><code>ObservableValue</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javafx/beans/value/WeakChangeListener.html" title="class in javafx.beans.value">WeakChangeListener</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">A <code>WeakChangeListener</code> can be used, if an <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value"><code>ObservableValue</code></a>
 should only maintain a weak reference to the listener.</div>
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<h2 title="Package javafx.beans.value Description">Package javafx.beans.value Description</h2>
<div class="block"><p>The package <code>javafx.beans.value</code> contains the two
                fundamental interfaces <a href="../../../javafx/beans/value/ObservableValue.html" title="interface in javafx.beans.value"><code>ObservableValue</code></a> and <a href="../../../javafx/beans/value/WritableValue.html" title="interface in javafx.beans.value"><code>WritableValue</code></a> and all of its sub-interfaces.</p>

        <h1>ObservableValue</h1>
        An ObservableValue wraps a value that can be read and observed for
        invalidations and changes. Listeners have to implement either <a href="../../../javafx/beans/InvalidationListener.html" title="interface in javafx.beans"><code>InvalidationListener</code></a> or <a href="../../../javafx/beans/value/ChangeListener.html" title="interface in javafx.beans.value"><code>ChangeListener</code></a>. To allow
        working with primitive types directly a number of sub-interfaces are
        defined.
        <table summary="ObservableValue">
                <tr>
                        <th>Type</th>
                        <th>Sub-interface of ObservableValue</th>
                </tr>
                <tr>
                        <td><code>boolean</code></td>
                        <td><a href="../../../javafx/beans/value/ObservableBooleanValue.html" title="interface in javafx.beans.value"><code>ObservableBooleanValue</code></a></td>
                </tr>
                <tr>
                        <td><code>double</code></td>
                        <td><a href="../../../javafx/beans/value/ObservableDoubleValue.html" title="interface in javafx.beans.value"><code>ObservableDoubleValue</code></a></td>
                </tr>
                <tr>
                        <td><code>float</code></td>
                        <td><a href="../../../javafx/beans/value/ObservableFloatValue.html" title="interface in javafx.beans.value"><code>ObservableFloatValue</code></a></td>
                </tr>
                <tr>
                        <td><code>int</code></td>
                        <td><a href="../../../javafx/beans/value/ObservableIntegerValue.html" title="interface in javafx.beans.value"><code>ObservableIntegerValue</code></a></td>
                </tr>
                <tr>
                        <td><code>long</code></td>
                        <td><a href="../../../javafx/beans/value/ObservableLongValue.html" title="interface in javafx.beans.value"><code>ObservableLongValue</code></a></td>
                </tr>
                <tr>
                        <td><code>double</code>, <code>float</code>, <code>int</code>, <code>long</code></td>
                        <td><a href="../../../javafx/beans/value/ObservableNumberValue.html" title="interface in javafx.beans.value"><code>ObservableNumberValue</code></a></td>
                </tr>
                <tr>
                        <td><code>Object</code></td>
                        <td><a href="../../../javafx/beans/value/ObservableObjectValue.html" title="interface in javafx.beans.value"><code>ObservableObjectValue</code></a></td>
                </tr>
                <tr>
                        <td><code>String</code></td>
                        <td><a href="../../../javafx/beans/value/ObservableStringValue.html" title="interface in javafx.beans.value"><code>ObservableStringValue</code></a></td>
                </tr>
        </table>

        <h1>WritableValue</h1>
        A WritableValue wraps a value that can be read and set. As with <code>ObservableValues</code>, a number of sub-interfaces are defined to work with
        primitive types directly.
        <table summary="WritableValue">
                <tr>
                        <th>Type</th>
                        <th>Sub-interface of WritableValue</th>
                </tr>
                <tr>
                        <td><code>boolean</code></td>
                        <td><a href="../../../javafx/beans/value/WritableBooleanValue.html" title="interface in javafx.beans.value"><code>WritableBooleanValue</code></a></td>
                </tr>
                <tr>
                        <td><code>double</code></td>
                        <td><a href="../../../javafx/beans/value/WritableDoubleValue.html" title="interface in javafx.beans.value"><code>WritableDoubleValue</code></a></td>
                </tr>
                <tr>
                        <td><code>float</code></td>
                        <td><a href="../../../javafx/beans/value/WritableFloatValue.html" title="interface in javafx.beans.value"><code>WritableFloatValue</code></a></td>
                </tr>
                <tr>
                        <td><code>int</code></td>
                        <td><a href="../../../javafx/beans/value/WritableIntegerValue.html" title="interface in javafx.beans.value"><code>WritableIntegerValue</code></a></td>
                </tr>
                <tr>
                        <td><code>long</code></td>
                        <td><a href="../../../javafx/beans/value/WritableLongValue.html" title="interface in javafx.beans.value"><code>WritableLongValue</code></a></td>
                </tr>
                <tr>
                        <td><code>double</code>, <code>float</code>, <code>int</code>, <code>long</code></td>
                        <td><a href="../../../javafx/beans/value/WritableNumberValue.html" title="interface in javafx.beans.value"><code>WritableNumberValue</code></a></td>
                </tr>
                <tr>
                        <td><code>Object</code></td>
                        <td><a href="../../../javafx/beans/value/WritableObjectValue.html" title="interface in javafx.beans.value"><code>WritableObjectValue</code></a></td>
                </tr>
                <tr>
                        <td><code>String</code></td>
                        <td><a href="../../../javafx/beans/value/WritableStringValue.html" title="interface in javafx.beans.value"><code>WritableStringValue</code></a></td>
                </tr>
        </table></div>
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