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<div class="subTitle">org.apache.commons.collections.comparators</div>
<h2 title="Class ComparableComparator" class="title">Class ComparableComparator</h2>
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<li>java.lang.Object</li>
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<dt>All Implemented Interfaces:</dt>
<dd>java.io.Serializable, java.util.Comparator</dd>
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<pre>public class <span class="strong">ComparableComparator</span>
extends java.lang.Object
implements java.util.Comparator, java.io.Serializable</pre>
<div class="block">A Comparator that compares Comparable objects.
Throws ClassCastExceptions if the objects are not
Comparable, or if they are null.
Throws ClassCastException if the compareTo of both
objects do not provide an inverse result of each other
as per the Comparable javadoc. This Comparator is useful, for example,
for enforcing the natural order in custom implementations
of SortedSet and SortedMap.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>2.0</dd>
<dt><span class="strong">Version:</span></dt>
<dd>$Id: ComparableComparator.java,v 1.5.2.1 2004/05/22 12:14:04 scolebourne Exp $</dd>
<dt><span class="strong">Author:</span></dt>
<dd>bayard@generationjava.com</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../serialized-form.html#org.apache.commons.collections.comparators.ComparableComparator">Serialized Form</a></dd></dl>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/commons/collections/comparators/ComparableComparator.html#ComparableComparator()">ComparableComparator</a></strong>()</code> </td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/collections/comparators/ComparableComparator.html#compare(java.lang.Object, java.lang.Object)">compare</a></strong>(java.lang.Object o1,
java.lang.Object o2)</code> </td>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/commons/collections/comparators/ComparableComparator.html" title="class in org.apache.commons.collections.comparators">ComparableComparator</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/collections/comparators/ComparableComparator.html#getInstance()">getInstance</a></strong>()</code>
<div class="block">Return a shared instance of a ComparableComparator.</div>
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<pre>public ComparableComparator()</pre>
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<pre>public int compare(java.lang.Object o1,
java.lang.Object o2)</pre>
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<dt><strong>Specified by:</strong></dt>
<dd><code>compare</code> in interface <code>java.util.Comparator</code></dd>
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<pre>public static <a href="../../../../../org/apache/commons/collections/comparators/ComparableComparator.html" title="class in org.apache.commons.collections.comparators">ComparableComparator</a> getInstance()</pre>
<div class="block">Return a shared instance of a ComparableComparator. Developers are
encouraged to use the comparator returned from this method instead of
constructing a new instance to reduce allocation and GC overhead when
multiple comparable comparators may be used in the same VM.</div>
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