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| <h2 title="Interface Union" class="title">Interface Union</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html" title="interface in org.apache.openjpa.jdbc.sql">SelectExecutor</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></dd> |
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| <br> |
| <pre>public interface <span class="strong">Union</span> |
| extends <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html" title="interface in org.apache.openjpa.jdbc.sql">SelectExecutor</a></pre> |
| <div class="block">SQL UNION.</div> |
| <dl><dt><span class="strong">Author:</span></dt> |
| <dd>Abe White</dd></dl> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/Union.Selector.html" title="interface in org.apache.openjpa.jdbc.sql">Union.Selector</a></strong></code> |
| <div class="block">A callback used to create the selects in a SQL union.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/Union.html#abortUnion()">abortUnion</a></strong>()</code> |
| <div class="block">Force the use of a series of standard selects rather than a true UNION.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/Union.html#getOrdering()">getOrdering</a></strong>()</code> |
| <div class="block">Get the union-level ordering, if any.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/openjpa/jdbc/sql/Select.html" title="interface in org.apache.openjpa.jdbc.sql">Select</a>[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/sql/Union.html#getSelects()">getSelects</a></strong>()</code> |
| <div class="block">Return the selects that make up this union.</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/Union.html#isUnion()">isUnion</a></strong>()</code> |
| <div class="block">Whether this is a true UNION, rather than a logical combination of |
| independent selects.</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/Union.html#select(org.apache.openjpa.jdbc.sql.Union.Selector)">select</a></strong>(<a href="../../../../../org/apache/openjpa/jdbc/sql/Union.Selector.html" title="interface in org.apache.openjpa.jdbc.sql">Union.Selector</a> selector)</code> |
| <div class="block">Select data using the given selector.</div> |
| </td> |
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| <h3>Methods inherited from interface org.apache.openjpa.jdbc.sql.<a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html" title="interface in org.apache.openjpa.jdbc.sql">SelectExecutor</a></h3> |
| <code><a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#execute(org.apache.openjpa.jdbc.kernel.JDBCStore,%20org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration)">execute</a>, <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>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getAutoDistinct()">getAutoDistinct</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getConfiguration()">getConfiguration</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getCount(org.apache.openjpa.jdbc.kernel.JDBCStore)">getCount</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getExpectedResultCount()">getExpectedResultCount</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getJoinSyntax()">getJoinSyntax</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#getSQL()">getSQL</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#hasMultipleSelects()">hasMultipleSelects</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#isDistinct()">isDistinct</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#isLRS()">isLRS</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setAutoDistinct(boolean)">setAutoDistinct</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setDistinct(boolean)">setDistinct</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setExpectedResultCount(int,%20boolean)">setExpectedResultCount</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setJoinSyntax(int)">setJoinSyntax</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#setLRS(boolean)">setLRS</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#supportsLocking()">supportsLocking</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#supportsRandomAccess(boolean)">supportsRandomAccess</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#toSelect(boolean,%20org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration)">toSelect</a>, <a href="../../../../../org/apache/openjpa/jdbc/sql/SelectExecutor.html#toSelectCount()">toSelectCount</a></code></li> |
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| <h3>Method Detail</h3> |
| <a name="getSelects()"> |
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| <h4>getSelects</h4> |
| <pre><a href="../../../../../org/apache/openjpa/jdbc/sql/Select.html" title="interface in org.apache.openjpa.jdbc.sql">Select</a>[] getSelects()</pre> |
| <div class="block">Return the selects that make up this union.</div> |
| </li> |
| </ul> |
| <a name="getOrdering()"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getOrdering</h4> |
| <pre><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getOrdering()</pre> |
| <div class="block">Get the union-level ordering, if any.</div> |
| </li> |
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| <pre>boolean isUnion()</pre> |
| <div class="block">Whether this is a true UNION, rather than a logical combination of |
| independent selects.</div> |
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| <h4>abortUnion</h4> |
| <pre>void abortUnion()</pre> |
| <div class="block">Force the use of a series of standard selects rather than a true UNION.</div> |
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| <pre>void select(<a href="../../../../../org/apache/openjpa/jdbc/sql/Union.Selector.html" title="interface in org.apache.openjpa.jdbc.sql">Union.Selector</a> selector)</pre> |
| <div class="block">Select data using the given selector.</div> |
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