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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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<title>Overview (Jakarta Commons Collections Package)</title>
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<h1 class="title">Jakarta Commons Collections Package</h1>
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<div class="block">
         Java Collections Framework extensions.</div>
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<p>See: <a href="#overview_description">Description</a></p>
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<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Jakarta-commons Collections table, listing packages, and an explanation">
<caption><span>Jakarta-commons Collections</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="org/apache/commons/collections/package-summary.html">org.apache.commons.collections</a></td>
<td class="colLast">
<div class="block">
         Java Collections Framework extensions.</div>
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</div>
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<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Other Packages table, listing packages, and an explanation">
<caption><span>Other Packages</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="org/apache/commons/collections/comparators/package-summary.html">org.apache.commons.collections.comparators</a></td>
<td class="colLast">
<div class="block">Contains concrete <code>Comparator</code> implementations.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="org/apache/commons/collections/iterators/package-summary.html">org.apache.commons.collections.iterators</a></td>
<td class="colLast">
<div class="block">Contains concrete <code>Iterator</code> implementations and utilities.</div>
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<div class="subTitle">
<div class="block"><p>
         Java Collections Framework extensions.
      </p>
      <p>
         See also the <tt>java.util</tt> package.
      </p>
      <table border="1" cellspacing="0" cellpadding="3">
      <tr bgcolor="#CCCCFF" class="TableHeadingColor">
        <th>Category</th><th>Classes</th><th>Comments</th>
      </tr>
      <tr>
        <td valign="top">List Implementations</td>
        <td>
          <a href="org/apache/commons/collections/CursorableLinkedList.html" title="class in org.apache.commons.collections"><code>CursorableLinkedList</code></a><br>
          <a href="org/apache/commons/collections/FastArrayList.html" title="class in org.apache.commons.collections"><code>FastArrayList</code></a>
        </td>
        <td valign="top">
          Special-purpose implementations of the <code>List</code> interface.
        </td>
      </tr>
      <tr>
        <td valign="top">Map Implementations</td>
        <td>
          <a href="org/apache/commons/collections/BeanMap.html" title="class in org.apache.commons.collections"><code>BeanMap</code></a><br>
          <a href="org/apache/commons/collections/DoubleOrderedMap.html" title="class in org.apache.commons.collections"><code>DoubleOrderedMap</code></a><br>
          <a href="org/apache/commons/collections/ExtendedProperties.html" title="class in org.apache.commons.collections"><code>ExtendedProperties</code></a><br>
          <a href="org/apache/commons/collections/FastHashMap.html" title="class in org.apache.commons.collections"><code>FastHashMap</code></a><br>
          <a href="org/apache/commons/collections/FastTreeMap.html" title="class in org.apache.commons.collections"><code>FastTreeMap</code></a><br>
          <a href="org/apache/commons/collections/LRUMap.html" title="class in org.apache.commons.collections"><code>LRUMap</code></a><br>
          <a href="org/apache/commons/collections/MultiHashMap.html" title="class in org.apache.commons.collections"><code>MultiHashMap</code></a><br>
          <a href="org/apache/commons/collections/ProxyMap.html" title="class in org.apache.commons.collections"><code>ProxyMap</code></a><br>
          <a href="org/apache/commons/collections/ReferenceMap.html" title="class in org.apache.commons.collections"><code>ReferenceMap</code></a><br>
          <a href="org/apache/commons/collections/SequencedHashMap.html" title="class in org.apache.commons.collections"><code>SequencedHashMap</code></a><br>
          <code>SoftRefHashMap</code><br>
          <a href="org/apache/commons/collections/StaticBucketMap.html" title="class in org.apache.commons.collections"><code>StaticBucketMap</code></a><br>
        </td>
        <td valign="top">
          Special-purpose implementations of the <code>Map</code> interface and associated classes.
        </td>
      </tr>
      <tr>
        <td valign="top">Buffer Interface and Implementations</td>
        <td>
          <a href="org/apache/commons/collections/ArrayStack.html" title="class in org.apache.commons.collections"><code>ArrayStack</code></a><br>
          <a href="org/apache/commons/collections/BinaryHeap.html" title="class in org.apache.commons.collections"><code>BinaryHeap</code></a><br>
          <a href="org/apache/commons/collections/BoundedFifoBuffer.html" title="class in org.apache.commons.collections"><code>BoundedFifoBuffer</code></a><br>
          <a href="org/apache/commons/collections/Buffer.html" title="interface in org.apache.commons.collections"><code>Buffer</code></a><br>
          <a href="org/apache/commons/collections/PriorityQueue.html" title="interface in org.apache.commons.collections"><code>PriorityQueue</code></a><br>
          <a href="org/apache/commons/collections/SynchronizedPriorityQueue.html" title="class in org.apache.commons.collections"><code>SynchronizedPriorityQueue</code></a>
          <a href="org/apache/commons/collections/UnboundedFifoBuffer.html" title="class in org.apache.commons.collections"><code>UnboundedFifoBuffer</code></a>
        </td>
        <td valign="top">
          New collection interface that specifies a removal order for
          the collection, used to implement queues and queue-like things.
        </td>
      </tr>
        <td valign="top">Bag Interface and Implementations</td>
        <td>
          <a href="org/apache/commons/collections/Bag.html" title="interface in org.apache.commons.collections"><code>Bag</code></a><br>
          <a href="org/apache/commons/collections/DefaultMapBag.html" title="class in org.apache.commons.collections"><code>DefaultMapBag</code></a><br>
          <a href="org/apache/commons/collections/HashBag.html" title="class in org.apache.commons.collections"><code>HashBag</code></a><br>
          <a href="org/apache/commons/collections/SortedBag.html" title="interface in org.apache.commons.collections"><code>SortedBag</code></a><br>
          <a href="org/apache/commons/collections/TreeBag.html" title="class in org.apache.commons.collections"><code>TreeBag</code></a>
        </td>
        <td valign="top">
          New collections interface that keeps a count of its members.
        </td>
      </tr>
      <tr>
        <td valign="top">Utilities</td>
        <td valign="top">
          <a href="org/apache/commons/collections/BagUtils.html" title="class in org.apache.commons.collections"><code>BagUtils</code></a><br>
          <a href="org/apache/commons/collections/BufferUtils.html" title="class in org.apache.commons.collections"><code>BufferUtils</code></a><br>
          <a href="org/apache/commons/collections/CollectionUtils.html" title="class in org.apache.commons.collections"><code>CollectionUtils</code></a><br>
          <a href="org/apache/commons/collections/ComparatorUtils.html" title="class in org.apache.commons.collections"><code>ComparatorUtils</code></a><br>
          <a href="org/apache/commons/collections/ListUtils.html" title="class in org.apache.commons.collections"><code>ListUtils</code></a><br>
          <a href="org/apache/commons/collections/MapUtils.html" title="class in org.apache.commons.collections"><code>MapUtils</code></a><br>
          <a href="org/apache/commons/collections/SetUtils.html" title="class in org.apache.commons.collections"><code>SetUtils</code></a>
        </td>
        <td valign="top">
          Manipulate collection objects, determine set theoretic
          properties, ensure type-safety, provide decorators, etc.
        </td>
      </tr>
      <tr>
        <td valign="top">Functor Interfaces</td>
        <td valign="top">
          <a href="org/apache/commons/collections/Factory.html" title="interface in org.apache.commons.collections"><code>Factory</code></a><br>
          <a href="org/apache/commons/collections/Predicate.html" title="interface in org.apache.commons.collections"><code>Predicate</code></a><br>
          <a href="org/apache/commons/collections/Closure.html" title="interface in org.apache.commons.collections"><code>Closure</code></a><br>
          <a href="org/apache/commons/collections/Transformer.html" title="interface in org.apache.commons.collections"><code>Transformer</code></a><br>
        </td>
        <td valign="top">
          Create views or functors on a collection. If your collection
          represents <i>X</i>, these allow you to define and look at
          <i>f(X)</i>.
        </td>
      </tr>
      <tr>
        <td valign="top">Miscellaneous</td>
        <td valign="top">
          <code>StringStack</code><br>
          <a href="org/apache/commons/collections/DefaultMapEntry.html" title="class in org.apache.commons.collections"><code>DefaultMapEntry</code></a><br>
        </td>
        <td valign="top">
          A stack of strings; and the trivial implementation of 
            <code>Map.Entry</code>.
        </td>
      </tr>
      </table></div>
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<p class="legalCopy"><small><small>Copyright &copy; 2001-2004 Apache Software Foundation. Documenation generated April 29 2013</small>.</small></p>
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