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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<div class="subTitle">org.joda.time.field</div>
<h2 title="Class BaseDurationField" class="title">Class BaseDurationField</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">org.joda.time.DurationField</a></li>
<li>
<ul class="inheritance">
<li>org.joda.time.field.BaseDurationField</li>
</ul>
</li>
</ul>
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<div class="description">
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<dt>All Implemented Interfaces:</dt>
<dd><a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;<a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a>&gt;</dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../org/joda/time/field/DecoratedDurationField.html" title="class in org.joda.time.field">DecoratedDurationField</a>, <a href="../../../../org/joda/time/field/PreciseDurationField.html" title="class in org.joda.time.field">PreciseDurationField</a></dd>
</dl>
<hr>
<br>
<pre>public abstract class <span class="strong">BaseDurationField</span>
extends <a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a>
implements <a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre>
<div class="block">BaseDurationField provides the common behaviour for DurationField
 implementations.
 <p>
 This class should generally not be used directly by API users. The
 DurationField class should be used when different kinds of DurationField
 objects are to be referenced.
 <p>
 BaseDurationField is thread-safe and immutable, and its subclasses must
 be as well.</div>
<dl><dt><span class="strong">Since:</span></dt>
  <dd>1.0</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../org/joda/time/field/DecoratedDurationField.html" title="class in org.joda.time.field"><code>DecoratedDurationField</code></a>, 
<a href="../../../../serialized-form.html#org.joda.time.field.BaseDurationField">Serialized Form</a></dd></dl>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier</th>
<th class="colLast" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#BaseDurationField(org.joda.time.DurationFieldType)">BaseDurationField</a></strong>(<a href="../../../../org/joda/time/DurationFieldType.html" title="class in org.joda.time">DurationFieldType</a>&nbsp;type)</code>&nbsp;</td>
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<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#compareTo(org.joda.time.DurationField)">compareTo</a></strong>(<a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a>&nbsp;otherField)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#getDifference(long,%20long)">getDifference</a></strong>(long&nbsp;minuendInstant,
             long&nbsp;subtrahendInstant)</code>
<div class="block">Computes the difference between two instants, as measured in the units
 of this field.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#getMillis(int)">getMillis</a></strong>(int&nbsp;value)</code>
<div class="block">Get the millisecond duration of this field from its value, which is
 approximate if this field is imprecise.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#getMillis(long)">getMillis</a></strong>(long&nbsp;value)</code>
<div class="block">Get the millisecond duration of this field from its value, which is
 approximate if this field is imprecise.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#getName()">getName</a></strong>()</code>
<div class="block">Get the name of the field.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../org/joda/time/DurationFieldType.html" title="class in org.joda.time">DurationFieldType</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#getType()">getType</a></strong>()</code>
<div class="block">Get the type of the field.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#getValue(long)">getValue</a></strong>(long&nbsp;duration)</code>
<div class="block">Get the value of this field from the milliseconds, which is approximate
 if this field is imprecise.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#getValue(long,%20long)">getValue</a></strong>(long&nbsp;duration,
        long&nbsp;instant)</code>
<div class="block">Get the value of this field from the milliseconds relative to an
 instant.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#getValueAsLong(long)">getValueAsLong</a></strong>(long&nbsp;duration)</code>
<div class="block">Get the value of this field from the milliseconds, which is approximate
 if this field is imprecise.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#isSupported()">isSupported</a></strong>()</code>
<div class="block">Returns true if this field is supported.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/BaseDurationField.html#toString()">toString</a></strong>()</code>
<div class="block">Get a suitable debug string.</div>
</td>
</tr>
</table>
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<!--   -->
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<h3>Methods inherited from class&nbsp;org.joda.time.<a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></h3>
<code><a href="../../../../org/joda/time/DurationField.html#add(long,%20int)">add</a>, <a href="../../../../org/joda/time/DurationField.html#add(long,%20long)">add</a>, <a href="../../../../org/joda/time/DurationField.html#getDifferenceAsLong(long,%20long)">getDifferenceAsLong</a>, <a href="../../../../org/joda/time/DurationField.html#getMillis(int,%20long)">getMillis</a>, <a href="../../../../org/joda/time/DurationField.html#getMillis(long,%20long)">getMillis</a>, <a href="../../../../org/joda/time/DurationField.html#getUnitMillis()">getUnitMillis</a>, <a href="../../../../org/joda/time/DurationField.html#getValueAsLong(long,%20long)">getValueAsLong</a>, <a href="../../../../org/joda/time/DurationField.html#isPrecise()">isPrecise</a>, <a href="../../../../org/joda/time/DurationField.html#subtract(long,%20int)">subtract</a>, <a href="../../../../org/joda/time/DurationField.html#subtract(long,%20long)">subtract</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Constructor Detail</h3>
<a name="BaseDurationField(org.joda.time.DurationFieldType)">
<!--   -->
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<ul class="blockListLast">
<li class="blockList">
<h4>BaseDurationField</h4>
<pre>protected&nbsp;BaseDurationField(<a href="../../../../org/joda/time/DurationFieldType.html" title="class in org.joda.time">DurationFieldType</a>&nbsp;type)</pre>
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<!-- ============ METHOD DETAIL ========== -->
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<h3>Method Detail</h3>
<a name="getType()">
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<h4>getType</h4>
<pre>public final&nbsp;<a href="../../../../org/joda/time/DurationFieldType.html" title="class in org.joda.time">DurationFieldType</a>&nbsp;getType()</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../org/joda/time/DurationField.html#getType()">DurationField</a></code></strong></div>
<div class="block">Get the type of the field.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#getType()">getType</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>field type</dd></dl>
</li>
</ul>
<a name="getName()">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getName</h4>
<pre>public final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getName()</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../org/joda/time/DurationField.html#getName()">DurationField</a></code></strong></div>
<div class="block">Get the name of the field.
 <p>
 By convention, names are plural.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#getName()">getName</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>field name</dd></dl>
</li>
</ul>
<a name="isSupported()">
<!--   -->
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<h4>isSupported</h4>
<pre>public final&nbsp;boolean&nbsp;isSupported()</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../org/joda/time/DurationField.html#isSupported()">DurationField</a></code></strong></div>
<div class="block">Returns true if this field is supported.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#isSupported()">isSupported</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>true always</dd></dl>
</li>
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<a name="getValue(long)">
<!--   -->
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<h4>getValue</h4>
<pre>public&nbsp;int&nbsp;getValue(long&nbsp;duration)</pre>
<div class="block">Get the value of this field from the milliseconds, which is approximate
 if this field is imprecise.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#getValue(long)">getValue</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the milliseconds to query, which may be negative</dd>
<dt><span class="strong">Returns:</span></dt><dd>the value of the field, in the units of the field, which may be
 negative</dd></dl>
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<a name="getValueAsLong(long)">
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<h4>getValueAsLong</h4>
<pre>public&nbsp;long&nbsp;getValueAsLong(long&nbsp;duration)</pre>
<div class="block">Get the value of this field from the milliseconds, which is approximate
 if this field is imprecise.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#getValueAsLong(long)">getValueAsLong</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the milliseconds to query, which may be negative</dd>
<dt><span class="strong">Returns:</span></dt><dd>the value of the field, in the units of the field, which may be
 negative</dd></dl>
</li>
</ul>
<a name="getValue(long, long)">
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<h4>getValue</h4>
<pre>public&nbsp;int&nbsp;getValue(long&nbsp;duration,
           long&nbsp;instant)</pre>
<div class="block">Get the value of this field from the milliseconds relative to an
 instant.

 <p>If the milliseconds is positive, then the instant is treated as a
 "start instant". If negative, the instant is treated as an "end
 instant".

 <p>The default implementation returns
 <code>Utils.safeToInt(getAsLong(millisDuration, instant))</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#getValue(long,%20long)">getValue</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the milliseconds to query, which may be negative</dd><dd><code>instant</code> - the start instant to calculate relative to</dd>
<dt><span class="strong">Returns:</span></dt><dd>the value of the field, in the units of the field, which may be
 negative</dd></dl>
</li>
</ul>
<a name="getMillis(int)">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getMillis</h4>
<pre>public&nbsp;long&nbsp;getMillis(int&nbsp;value)</pre>
<div class="block">Get the millisecond duration of this field from its value, which is
 approximate if this field is imprecise.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#getMillis(int)">getMillis</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value of the field, which may be negative</dd>
<dt><span class="strong">Returns:</span></dt><dd>the milliseconds that the field represents, which may be
 negative</dd></dl>
</li>
</ul>
<a name="getMillis(long)">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getMillis</h4>
<pre>public&nbsp;long&nbsp;getMillis(long&nbsp;value)</pre>
<div class="block">Get the millisecond duration of this field from its value, which is
 approximate if this field is imprecise.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#getMillis(long)">getMillis</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value of the field, which may be negative</dd>
<dt><span class="strong">Returns:</span></dt><dd>the milliseconds that the field represents, which may be
 negative</dd></dl>
</li>
</ul>
<a name="getDifference(long, long)">
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</a>
<ul class="blockList">
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<h4>getDifference</h4>
<pre>public&nbsp;int&nbsp;getDifference(long&nbsp;minuendInstant,
                long&nbsp;subtrahendInstant)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../org/joda/time/DurationField.html#getDifference(long,%20long)">DurationField</a></code></strong></div>
<div class="block">Computes the difference between two instants, as measured in the units
 of this field. Any fractional units are dropped from the result. Calling
 getDifference reverses the effect of calling add. In the following code:

 <pre>
 long instant = ...
 int v = ...
 int age = getDifference(add(instant, v), instant);
 </pre>

 The value 'age' is the same as the value 'v'.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#getDifference(long,%20long)">getDifference</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>minuendInstant</code> - the milliseconds from 1970-01-01T00:00:00Z to
 subtract from</dd><dd><code>subtrahendInstant</code> - the milliseconds from 1970-01-01T00:00:00Z to
 subtract off the minuend</dd>
<dt><span class="strong">Returns:</span></dt><dd>the difference in the units of this field</dd></dl>
</li>
</ul>
<a name="compareTo(org.joda.time.DurationField)">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>compareTo</h4>
<pre>public&nbsp;int&nbsp;compareTo(<a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a>&nbsp;otherField)</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Comparable.html?is-external=true#compareTo(T)" title="class or interface in java.lang">compareTo</a></code>&nbsp;in interface&nbsp;<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;<a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a>&gt;</code></dd>
</dl>
</li>
</ul>
<a name="toString()">
<!--   -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>toString</h4>
<pre>public&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;toString()</pre>
<div class="block">Get a suitable debug string.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/joda/time/DurationField.html#toString()">toString</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/joda/time/DurationField.html" title="class in org.joda.time">DurationField</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>debug string</dd></dl>
</li>
</ul>
</li>
</ul>
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</ul>
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