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<title>org.apache.commons.collections.iterators (Jakarta Commons Collections Package)</title>
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<h1 title="Package" class="title">Package&nbsp;org.apache.commons.collections.iterators</h1>
<div class="docSummary">
<div class="block">Contains concrete <code>Iterator</code> implementations and utilities.</div>
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<p>See:&nbsp;<a href="#package_description">Description</a></p>
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<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/ArrayIterator.html" title="class in org.apache.commons.collections.iterators">ArrayIterator</a></td>
<td class="colLast">
<div class="block">Implements an <code>Iterator</code> over an array of objects.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/CollatingIterator.html" title="class in org.apache.commons.collections.iterators">CollatingIterator</a></td>
<td class="colLast">
<div class="block">Provides an ordered iteration over the elements contained in
 a collection of ordered <code>Iterator</code>s.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/EmptyIterator.html" title="class in org.apache.commons.collections.iterators">EmptyIterator</a></td>
<td class="colLast">
<div class="block">Provides an implementation of an empty iterator.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/EmptyListIterator.html" title="class in org.apache.commons.collections.iterators">EmptyListIterator</a></td>
<td class="colLast">
<div class="block">Provides an implementation of an empty list iterator.</div>
</td>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/EnumerationIterator.html" title="class in org.apache.commons.collections.iterators">EnumerationIterator</a></td>
<td class="colLast">
<div class="block">Adapter to make <code>Enumeration</code> instances appear
 to be <code>Iterator</code> instances.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/FilterIterator.html" title="class in org.apache.commons.collections.iterators">FilterIterator</a></td>
<td class="colLast">
<div class="block">A Proxy <code>Iterator</code> which takes a <a href="../../../../../org/apache/commons/collections/Predicate.html" title="interface in org.apache.commons.collections"><code>Predicate</code></a> instance to filter
 out objects from an underlying <code>Iterator</code> instance.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/FilterListIterator.html" title="class in org.apache.commons.collections.iterators">FilterListIterator</a></td>
<td class="colLast">
<div class="block">A proxy <code>ListIterator</code> which 
 takes a <a href="../../../../../org/apache/commons/collections/Predicate.html" title="interface in org.apache.commons.collections"><code>Predicate</code></a> instance to filter
 out objects from an underlying <code>ListIterator</code> 
 instance.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/IteratorChain.html" title="class in org.apache.commons.collections.iterators">IteratorChain</a></td>
<td class="colLast">
<div class="block">An IteratorChain is an Iterator that wraps one or
 more Iterators.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/IteratorEnumeration.html" title="class in org.apache.commons.collections.iterators">IteratorEnumeration</a></td>
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<div class="block">Adapter to make an <code>Iterator</code> instance appear to be an <code>Enumeration</code> instances</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/ListIteratorWrapper.html" title="class in org.apache.commons.collections.iterators">ListIteratorWrapper</a></td>
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<div class="block">As the wrapped Iterator is traversed, ListIteratorWrapper
 builds a LinkedList of its values, permitting all required
 operations of ListIterator.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/ProxyIterator.html" title="class in org.apache.commons.collections.iterators">ProxyIterator</a></td>
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<div class="block">A Proxy <code>Iterator</code> which delegates its methods to a proxy instance.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/ProxyListIterator.html" title="class in org.apache.commons.collections.iterators">ProxyListIterator</a></td>
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<div class="block">A proxy <code>ListIterator</code> which delegates its
 methods to a proxy instance.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/SingletonIterator.html" title="class in org.apache.commons.collections.iterators">SingletonIterator</a></td>
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<div class="block"><code>SingletonIterator</code> is an <code>Iterator</code> over a single 
 object instance.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/SingletonListIterator.html" title="class in org.apache.commons.collections.iterators">SingletonListIterator</a></td>
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<div class="block"><code>SingletonIterator</code> is an <code>ListIterator</code> over a single 
 object instance.</div>
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/TransformIterator.html" title="class in org.apache.commons.collections.iterators">TransformIterator</a></td>
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<div class="block">A Proxy <code>Iterator</code> which uses a <a href="../../../../../org/apache/commons/collections/Transformer.html" title="interface in org.apache.commons.collections"><code>Transformer</code></a> instance to 
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<td class="colFirst"><a href="../../../../../org/apache/commons/collections/iterators/UniqueFilterIterator.html" title="class in org.apache.commons.collections.iterators">UniqueFilterIterator</a></td>
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<div class="block">A FilterIterator which only returns "unique" Objects.</div>
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<h2 title="Package org.apache.commons.collections.iterators Description">Package org.apache.commons.collections.iterators Description</h2>
<div class="block">Contains concrete <code>Iterator</code> implementations and utilities.
You may also consider using 
<a href="../../../../../org/apache/commons/collections/IteratorUtils.html" title="class in org.apache.commons.collections"><code>IteratorUtils</code></a>,
which is a single class that uses static methods to construct instances
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