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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.cayenne.access.jdbc</a></div>
<h2 title="Class DistinctResultIterator" class="title">Class DistinctResultIterator&lt;T&gt;</h2>
</div>
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<ul class="inheritance">
<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a></li>
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<li>org.apache.cayenne.access.jdbc.DistinctResultIterator&lt;T&gt;</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang" class="externalLink">AutoCloseable</a></code>, <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang" class="externalLink">Iterable</a>&lt;T&gt;</code>, <code><a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;T&gt;</code></dd>
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<hr>
<pre>public class <span class="typeNameLabel">DistinctResultIterator&lt;T&gt;</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>
implements <a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;T&gt;</pre>
<div class="block">A ResultIterator that does in-memory filtering of rows to return only
distinct rows. Distinct comparison is done by comparing ObjectIds created
from each row. Internally DistinctResultIterator wraps another ResultIterator
that provides the actual rows.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>3.0</dd>
</dl>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#compareFullRows">compareFullRows</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../map/DbEntity.html" title="class in org.apache.cayenne.map">DbEntity</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#defaultEntity">defaultEntity</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#delegate">delegate</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util" class="externalLink">Set</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fetchedIds">fetchedIds</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#nextDataRow">nextDataRow</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.cayenne.ResultIterator,org.apache.cayenne.map.DbEntity,boolean)">DistinctResultIterator</a></span>&#8203;(<a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;&nbsp;delegate,
<a href="../../map/DbEntity.html" title="class in org.apache.cayenne.map">DbEntity</a>&nbsp;defaultEntity,
boolean&nbsp;compareFullRows)</code></th>
<td class="colLast">
<div class="block">Creates new DistinctResultIterator wrapping another ResultIterator.</div>
</td>
</tr>
</table>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#allRows()">allRows</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns all yet unread rows from ResultSet without closing it.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th>
<td class="colLast">
<div class="block">Closes underlying ResultIterator.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasNextRow()">hasNextRow</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns true if there is at least one more record that can be read from
the iterator.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util" class="externalLink">Iterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#iterator()">iterator</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#nextRow()">nextRow</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the next result row that is, depending on the query, may be a
scalar value, a DataRow, or an Object[] array containing a mix of scalars
and DataRows.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#skipRow()">skipRow</a></span>()</code></th>
<td class="colLast">
<div class="block">Goes past current row.</div>
</td>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang" class="externalLink">Iterable</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true#forEach(java.util.function.Consumer)" title="class or interface in java.lang" class="externalLink">forEach</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true#spliterator()" title="class or interface in java.lang" class="externalLink">spliterator</a></code></li>
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<h4>delegate</h4>
<pre>protected&nbsp;<a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt; delegate</pre>
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<a id="fetchedIds">
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<h4>fetchedIds</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util" class="externalLink">Set</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>&gt; fetchedIds</pre>
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<h4>nextDataRow</h4>
<pre>protected&nbsp;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a> nextDataRow</pre>
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<a id="defaultEntity">
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<h4>defaultEntity</h4>
<pre>protected&nbsp;<a href="../../map/DbEntity.html" title="class in org.apache.cayenne.map">DbEntity</a> defaultEntity</pre>
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<a id="compareFullRows">
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<h4>compareFullRows</h4>
<pre>protected&nbsp;boolean compareFullRows</pre>
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<h3>Constructor Detail</h3>
<a id="&lt;init&gt;(org.apache.cayenne.ResultIterator,org.apache.cayenne.map.DbEntity,boolean)">
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</a>
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<h4>DistinctResultIterator</h4>
<pre>public&nbsp;DistinctResultIterator&#8203;(<a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;&nbsp;delegate,
<a href="../../map/DbEntity.html" title="class in org.apache.cayenne.map">DbEntity</a>&nbsp;defaultEntity,
boolean&nbsp;compareFullRows)</pre>
<div class="block">Creates new DistinctResultIterator wrapping another ResultIterator.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>delegate</code> - actual result iterator, that will be decorated by this DistinctResultIterator</dd>
<dd><code>defaultEntity</code> - an entity needed to build ObjectIds for distinct comparison.</dd>
</dl>
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<h4>iterator</h4>
<pre class="methodSignature">public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util" class="externalLink">Iterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;&nbsp;iterator()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true#iterator()" title="class or interface in java.lang" class="externalLink">iterator</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang" class="externalLink">Iterable</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>4.0</dd>
</dl>
</li>
</ul>
<a id="close()">
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<h4>close</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;close()</pre>
<div class="block">Closes underlying ResultIterator.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true#close()" title="class or interface in java.lang" class="externalLink">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang" class="externalLink">AutoCloseable</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../ResultIterator.html#close()">close</a></code>&nbsp;in interface&nbsp;<code><a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></dd>
</dl>
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<a id="allRows()">
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<h4>allRows</h4>
<pre class="methodSignature">public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;&nbsp;allRows()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../ResultIterator.html#allRows()">ResultIterator</a></code></span></div>
<div class="block">Returns all yet unread rows from ResultSet without closing it.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../ResultIterator.html#allRows()">allRows</a></code>&nbsp;in interface&nbsp;<code><a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>3.0</dd>
</dl>
</li>
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<h4>hasNextRow</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;hasNextRow()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../ResultIterator.html#hasNextRow()">ResultIterator</a></code></span></div>
<div class="block">Returns true if there is at least one more record that can be read from
the iterator.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../ResultIterator.html#hasNextRow()">hasNextRow</a></code>&nbsp;in interface&nbsp;<code><a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></dd>
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<h4>nextRow</h4>
<pre class="methodSignature">public&nbsp;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&nbsp;nextRow()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../ResultIterator.html#nextRow()">ResultIterator</a></code></span></div>
<div class="block">Returns the next result row that is, depending on the query, may be a
scalar value, a DataRow, or an Object[] array containing a mix of scalars
and DataRows.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../ResultIterator.html#nextRow()">nextRow</a></code>&nbsp;in interface&nbsp;<code><a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></dd>
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<h4>skipRow</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;skipRow()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../ResultIterator.html#skipRow()">ResultIterator</a></code></span></div>
<div class="block">Goes past current row. If the row is not needed, this may save some time
on data conversion.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../ResultIterator.html#skipRow()">skipRow</a></code>&nbsp;in interface&nbsp;<code><a href="../../ResultIterator.html" title="interface in org.apache.cayenne">ResultIterator</a>&lt;<a href="DistinctResultIterator.html" title="type parameter in DistinctResultIterator">T</a>&gt;</code></dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>3.0</dd>
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