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<div class="subTitle">org.apache.openjpa.jdbc.sql</div>
<h2 title="Interface SelectExecutor" class="title">Interface SelectExecutor</h2>
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<dl>
<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../../../org/apache/openjpa/jdbc/sql/Select.html" title="interface in org.apache.openjpa.jdbc.sql">Select</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/Union.html" title="interface in org.apache.openjpa.jdbc.sql">Union</a></dd>
</dl>
<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../../org/apache/openjpa/jdbc/sql/LogicalUnion.html" title="class in org.apache.openjpa.jdbc.sql">LogicalUnion</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/LogicalUnion.UnionSelect.html" title="class in org.apache.openjpa.jdbc.sql">LogicalUnion.UnionSelect</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectImpl.html" title="class in org.apache.openjpa.jdbc.sql">SelectImpl</a></dd>
</dl>
<hr>
<br>
<pre>public interface <span class="strong">SelectExecutor</span></pre>
<div class="block">Interface for configuring and executing a SQL select.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Abe White</dd></dl>
</li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
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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><a href="../../../../../org/apache/openjpa/jdbc/sql/Result.html" title="interface in org.apache.openjpa.jdbc.sql">Result</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#execute(org.apache.openjpa.jdbc.kernel.JDBCStore,%20org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration)">execute</a></strong>(<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCFetchConfiguration.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCFetchConfiguration</a>&nbsp;fetch)</code>
<div class="block">Execute this select in the context of the given store manager.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/sql/Result.html" title="interface in org.apache.openjpa.jdbc.sql">Result</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#execute(org.apache.openjpa.jdbc.kernel.JDBCStore,%20org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration,%20int)">execute</a></strong>(<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCFetchConfiguration.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCFetchConfiguration</a>&nbsp;fetch,
int&nbsp;lockLevel)</code>
<div class="block">Execute this select in the context of the given store manager.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getAutoDistinct()">getAutoDistinct</a></strong>()</code>
<div class="block">Whether to automatically make results distinct when relational joins
would otherwise introduce duplicates.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/conf/JDBCConfiguration.html" title="interface in org.apache.openjpa.jdbc.conf">JDBCConfiguration</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getConfiguration()">getConfiguration</a></strong>()</code>
<div class="block">Return the select configuration.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getCount(org.apache.openjpa.jdbc.kernel.JDBCStore)">getCount</a></strong>(<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store)</code>
<div class="block">Return the number of instances matching this select.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getExpectedResultCount()">getExpectedResultCount</a></strong>()</code>
<div class="block">The expected result count for the query.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getJoinSyntax()">getJoinSyntax</a></strong>()</code>
<div class="block">The join syntax for this select, as one of the syntax constants from
<a href="../../../../../org/apache/openjpa/jdbc/sql/JoinSyntaxes.html" title="interface in org.apache.openjpa.jdbc.sql"><code>JoinSyntaxes</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getSQL()">getSQL</a></strong>()</code>
<div class="block">Get the buffer if it has been computed by a previous call to
<a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#toSelect(boolean,%20org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration)"><code>toSelect(boolean, JDBCFetchConfiguration)</code></a>, if any.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#hasMultipleSelects()">hasMultipleSelects</a></strong>()</code>
<div class="block">Affirm if this receiver requires more than one selects to fetch its
data.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#isDistinct()">isDistinct</a></strong>()</code>
<div class="block">Whether this is a SELECT DISTINCT / UNION ALL.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#isLRS()">isLRS</a></strong>()</code>
<div class="block">Whether the result of this select should be treated as a large
result set.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setAutoDistinct(boolean)">setAutoDistinct</a></strong>(boolean&nbsp;distinct)</code>
<div class="block">Whether to automatically make results distinct when relational joins
would otherwise introduce duplicates.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setDistinct(boolean)">setDistinct</a></strong>(boolean&nbsp;distinct)</code>
<div class="block">Whether this is a SELECT DISTINCT / UNION ALL.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setExpectedResultCount(int,%20boolean)">setExpectedResultCount</a></strong>(int&nbsp;expectedResultCount,
boolean&nbsp;force)</code>
<div class="block">The expected result count for the query.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setJoinSyntax(int)">setJoinSyntax</a></strong>(int&nbsp;joinSyntax)</code>
<div class="block">The join syntax for this select, as one of the syntax constants from
<a href="../../../../../org/apache/openjpa/jdbc/sql/JoinSyntaxes.html" title="interface in org.apache.openjpa.jdbc.sql"><code>JoinSyntaxes</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setLRS(boolean)">setLRS</a></strong>(boolean&nbsp;lrs)</code>
<div class="block">Whether the result of this select should be treated as a large
result set.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#supportsLocking()">supportsLocking</a></strong>()</code>
<div class="block">Whether this select can be executed for update.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#supportsRandomAccess(boolean)">supportsRandomAccess</a></strong>(boolean&nbsp;forUpdate)</code>
<div class="block">Return whether this select can support a random access result set type.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#toSelect(boolean,%20org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration)">toSelect</a></strong>(boolean&nbsp;forUpdate,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCFetchConfiguration.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCFetchConfiguration</a>&nbsp;fetch)</code>
<div class="block">Return this select as a SQL statement formatted for the current
dictionary.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#toSelectCount()">toSelectCount</a></strong>()</code>
<div class="block">Return this select as a COUNT SQL statement formatted for the current
dictionary.</div>
</td>
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<h3>Method Detail</h3>
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<h4>getConfiguration</h4>
<pre><a href="../../../../../org/apache/openjpa/jdbc/conf/JDBCConfiguration.html" title="interface in org.apache.openjpa.jdbc.conf">JDBCConfiguration</a>&nbsp;getConfiguration()</pre>
<div class="block">Return the select configuration.</div>
</li>
</ul>
<a name="toSelect(boolean, org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration)">
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<h4>toSelect</h4>
<pre><a href="../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</a>&nbsp;toSelect(boolean&nbsp;forUpdate,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCFetchConfiguration.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCFetchConfiguration</a>&nbsp;fetch)</pre>
<div class="block">Return this select as a SQL statement formatted for the current
dictionary.</div>
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<a name="getSQL()">
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<h4>getSQL</h4>
<pre><a href="../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</a>&nbsp;getSQL()</pre>
<div class="block">Get the buffer if it has been computed by a previous call to
<a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#toSelect(boolean,%20org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration)"><code>toSelect(boolean, JDBCFetchConfiguration)</code></a>, if any.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>2.0.0</dd></dl>
</li>
</ul>
<a name="toSelectCount()">
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<h4>toSelectCount</h4>
<pre><a href="../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</a>&nbsp;toSelectCount()</pre>
<div class="block">Return this select as a COUNT SQL statement formatted for the current
dictionary.</div>
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<pre>boolean&nbsp;getAutoDistinct()</pre>
<div class="block">Whether to automatically make results distinct when relational joins
would otherwise introduce duplicates.</div>
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<pre>void&nbsp;setAutoDistinct(boolean&nbsp;distinct)</pre>
<div class="block">Whether to automatically make results distinct when relational joins
would otherwise introduce duplicates.</div>
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<pre>boolean&nbsp;isDistinct()</pre>
<div class="block">Whether this is a SELECT DISTINCT / UNION ALL.</div>
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<pre>void&nbsp;setDistinct(boolean&nbsp;distinct)</pre>
<div class="block">Whether this is a SELECT DISTINCT / UNION ALL.</div>
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<pre>boolean&nbsp;isLRS()</pre>
<div class="block">Whether the result of this select should be treated as a large
result set.</div>
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<a name="setLRS(boolean)">
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<h4>setLRS</h4>
<pre>void&nbsp;setLRS(boolean&nbsp;lrs)</pre>
<div class="block">Whether the result of this select should be treated as a large
result set.</div>
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<a name="getExpectedResultCount()">
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<pre>int&nbsp;getExpectedResultCount()</pre>
<div class="block">The expected result count for the query.</div>
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<pre>void&nbsp;setExpectedResultCount(int&nbsp;expectedResultCount,
boolean&nbsp;force)</pre>
<div class="block">The expected result count for the query.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>force</code> - if false, the count will be discarded if this select has
any to-many eager joins that would throw off the result count</dd></dl>
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<pre>int&nbsp;getJoinSyntax()</pre>
<div class="block">The join syntax for this select, as one of the syntax constants from
<a href="../../../../../org/apache/openjpa/jdbc/sql/JoinSyntaxes.html" title="interface in org.apache.openjpa.jdbc.sql"><code>JoinSyntaxes</code></a>.</div>
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<pre>void&nbsp;setJoinSyntax(int&nbsp;joinSyntax)</pre>
<div class="block">The join syntax for this select, as one of the syntax constants from
<a href="../../../../../org/apache/openjpa/jdbc/sql/JoinSyntaxes.html" title="interface in org.apache.openjpa.jdbc.sql"><code>JoinSyntaxes</code></a>.</div>
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<pre>boolean&nbsp;supportsRandomAccess(boolean&nbsp;forUpdate)</pre>
<div class="block">Return whether this select can support a random access result set type.</div>
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<pre>boolean&nbsp;supportsLocking()</pre>
<div class="block">Whether this select can be executed for update.</div>
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<a name="getCount(org.apache.openjpa.jdbc.kernel.JDBCStore)">
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<h4>getCount</h4>
<pre>int&nbsp;getCount(<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</a></pre>
<div class="block">Return the number of instances matching this select.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</a></code></dd></dl>
</li>
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<h4>execute</h4>
<pre><a href="../../../../../org/apache/openjpa/jdbc/sql/Result.html" title="interface in org.apache.openjpa.jdbc.sql">Result</a>&nbsp;execute(<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCFetchConfiguration.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCFetchConfiguration</a>&nbsp;fetch)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</a></pre>
<div class="block">Execute this select in the context of the given store manager.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</a></code></dd></dl>
</li>
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<h4>execute</h4>
<pre><a href="../../../../../org/apache/openjpa/jdbc/sql/Result.html" title="interface in org.apache.openjpa.jdbc.sql">Result</a>&nbsp;execute(<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCFetchConfiguration.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCFetchConfiguration</a>&nbsp;fetch,
int&nbsp;lockLevel)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</a></pre>
<div class="block">Execute this select in the context of the given store manager.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/sql/SQLException.html?is-external=true" title="class or interface in java.sql">SQLException</a></code></dd></dl>
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<h4>hasMultipleSelects</h4>
<pre>boolean&nbsp;hasMultipleSelects()</pre>
<div class="block">Affirm if this receiver requires more than one selects to fetch its
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