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<div class="subTitle">org.apache.openjpa.jdbc.meta</div>
<h2 title="Interface VersionStrategy" class="title">Interface VersionStrategy</h2>
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<dt>All Superinterfaces:</dt>
<dd><a href="http://docs.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html" title="interface in org.apache.openjpa.jdbc.meta">Strategy</a></dd>
</dl>
<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../../org/apache/openjpa/jdbc/meta/strats/AbstractVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">AbstractVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/strats/ColumnVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">ColumnVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/strats/MultiColumnVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">MultiColumnVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/strats/NanoPrecisionTimestampVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">NanoPrecisionTimestampVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/strats/NoneVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">NoneVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/strats/NumberVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">NumberVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/strats/StateComparisonVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">StateComparisonVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/strats/SuperclassVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">SuperclassVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/strats/TimestampVersionStrategy.html" title="class in org.apache.openjpa.jdbc.meta.strats">TimestampVersionStrategy</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Version.html" title="class in org.apache.openjpa.jdbc.meta">Version</a></dd>
</dl>
<hr>
<br>
<pre>public interface <span class="strong">VersionStrategy</span>
extends <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html" title="interface in org.apache.openjpa.jdbc.meta">Strategy</a></pre>
<div class="block">Handles optimistic lock versioning for a class.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Abe White</dd></dl>
</li>
</ul>
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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>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/meta/VersionStrategy.html#afterLoad(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore)">afterLoad</a></strong>(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm,
<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">This method is called after data is loaded into the instance, in
case the version indicator works off of a state image.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/meta/VersionStrategy.html#checkVersion(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore,%20boolean)">checkVersion</a></strong>(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store,
boolean&nbsp;updateVersion)</code>
<div class="block">Checks the version of the given state manager with the version
stored in memory.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/meta/VersionStrategy.html#compareVersion(java.lang.Object,%20java.lang.Object)">compareVersion</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;v1,
<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;v2)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>,? extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/meta/VersionStrategy.html#getBulkUpdateValues()">getBulkUpdateValues</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/meta/VersionStrategy.html#load(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore,%20org.apache.openjpa.jdbc.sql.Result)">load</a></strong>(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm,
<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/sql/Result.html" title="interface in org.apache.openjpa.jdbc.sql">Result</a>&nbsp;res)</code>
<div class="block">Load data.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/meta/VersionStrategy.html#load(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore,%20org.apache.openjpa.jdbc.sql.Result,%20org.apache.openjpa.jdbc.sql.Joins)">load</a></strong>(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm,
<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/sql/Result.html" title="interface in org.apache.openjpa.jdbc.sql">Result</a>&nbsp;res,
<a href="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</a>&nbsp;joins)</code>
<div class="block">Load data.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/meta/VersionStrategy.html#select(org.apache.openjpa.jdbc.sql.Select,%20org.apache.openjpa.jdbc.meta.ClassMapping)">select</a></strong>(<a href="../../../../../org/apache/openjpa/jdbc/sql/Select.html" title="interface in org.apache.openjpa.jdbc.sql">Select</a>&nbsp;sel,
<a href="../../../../../org/apache/openjpa/jdbc/meta/ClassMapping.html" title="class in org.apache.openjpa.jdbc.meta">ClassMapping</a>&nbsp;mapping)</code>
<div class="block">Select the data for this indicator.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/jdbc/meta/VersionStrategy.html#setVersion(org.apache.openjpa.jdbc.meta.Version)">setVersion</a></strong>(<a href="../../../../../org/apache/openjpa/jdbc/meta/Version.html" title="class in org.apache.openjpa.jdbc.meta">Version</a>&nbsp;owner)</code>
<div class="block">Set the version that uses this strategy.</div>
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<h3>Methods inherited from interface&nbsp;org.apache.openjpa.jdbc.meta.<a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html" title="interface in org.apache.openjpa.jdbc.meta">Strategy</a></h3>
<code><a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#customDelete(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore)">customDelete</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#customInsert(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore)">customInsert</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#customUpdate(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore)">customUpdate</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#delete(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore,%20org.apache.openjpa.jdbc.sql.RowManager)">delete</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#getAlias()">getAlias</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#initialize()">initialize</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#insert(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore,%20org.apache.openjpa.jdbc.sql.RowManager)">insert</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#isCustomDelete(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore)">isCustomDelete</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#isCustomInsert(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore)">isCustomInsert</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#isCustomUpdate(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore)">isCustomUpdate</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#map(boolean)">map</a>, <a href="../../../../../org/apache/openjpa/jdbc/meta/Strategy.html#update(org.apache.openjpa.kernel.OpenJPAStateManager,%20org.apache.openjpa.jdbc.kernel.JDBCStore,%20org.apache.openjpa.jdbc.sql.RowManager)">update</a></code></li>
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<h3>Method Detail</h3>
<a name="setVersion(org.apache.openjpa.jdbc.meta.Version)">
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<h4>setVersion</h4>
<pre>void&nbsp;setVersion(<a href="../../../../../org/apache/openjpa/jdbc/meta/Version.html" title="class in org.apache.openjpa.jdbc.meta">Version</a>&nbsp;owner)</pre>
<div class="block">Set the version that uses this strategy. This will be called before use.</div>
</li>
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<a name="select(org.apache.openjpa.jdbc.sql.Select, org.apache.openjpa.jdbc.meta.ClassMapping)">
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<h4>select</h4>
<pre>boolean&nbsp;select(<a href="../../../../../org/apache/openjpa/jdbc/sql/Select.html" title="interface in org.apache.openjpa.jdbc.sql">Select</a>&nbsp;sel,
<a href="../../../../../org/apache/openjpa/jdbc/meta/ClassMapping.html" title="class in org.apache.openjpa.jdbc.meta">ClassMapping</a>&nbsp;mapping)</pre>
<div class="block">Select the data for this indicator.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>mapping</code> - the known base class being selected; this may
not be the base class in the inheritance hierarchy</dd>
<dt><span class="strong">Returns:</span></dt><dd>true if anything was selected; false otherwise</dd></dl>
</li>
</ul>
<a name="load(org.apache.openjpa.kernel.OpenJPAStateManager, org.apache.openjpa.jdbc.kernel.JDBCStore, org.apache.openjpa.jdbc.sql.Result)">
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<h4>load</h4>
<pre><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;load(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm,
<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/sql/Result.html" title="interface in org.apache.openjpa.jdbc.sql">Result</a>&nbsp;res)
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">Load data.</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>
</ul>
<a name="load(org.apache.openjpa.kernel.OpenJPAStateManager, org.apache.openjpa.jdbc.kernel.JDBCStore, org.apache.openjpa.jdbc.sql.Result, org.apache.openjpa.jdbc.sql.Joins)">
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<h4>load</h4>
<pre><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;load(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm,
<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/sql/Result.html" title="interface in org.apache.openjpa.jdbc.sql">Result</a>&nbsp;res,
<a href="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</a>&nbsp;joins)
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">Load data.</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>afterLoad</h4>
<pre>void&nbsp;afterLoad(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store)</pre>
<div class="block">This method is called after data is loaded into the instance, in
case the version indicator works off of a state image.</div>
</li>
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<a name="checkVersion(org.apache.openjpa.kernel.OpenJPAStateManager, org.apache.openjpa.jdbc.kernel.JDBCStore, boolean)">
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<h4>checkVersion</h4>
<pre>boolean&nbsp;checkVersion(<a href="../../../../../org/apache/openjpa/kernel/OpenJPAStateManager.html" title="interface in org.apache.openjpa.kernel">OpenJPAStateManager</a>&nbsp;sm,
<a href="../../../../../org/apache/openjpa/jdbc/kernel/JDBCStore.html" title="interface in org.apache.openjpa.jdbc.kernel">JDBCStore</a>&nbsp;store,
boolean&nbsp;updateVersion)
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">Checks the version of the given state manager with the version
stored in memory.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>true if the in-memory version was up-to-date, false otherwise</dd>
<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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<a name="compareVersion(java.lang.Object, java.lang.Object)">
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<h4>compareVersion</h4>
<pre>int&nbsp;compareVersion(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;v1,
<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;v2)</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../org/apache/openjpa/kernel/StoreManager.html#compareVersion(org.apache.openjpa.kernel.OpenJPAStateManager,%20java.lang.Object,%20java.lang.Object)"><code>StoreManager.compareVersion(org.apache.openjpa.kernel.OpenJPAStateManager, java.lang.Object, java.lang.Object)</code></a></dd></dl>
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<h4>getBulkUpdateValues</h4>
<pre><a href="http://docs.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</a>,? extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;getBulkUpdateValues()</pre>
<dl><dt><span class="strong">Returns:</span></dt><dd>a Map<Column,Object> specifying how to update each version
column during a bulk update.</dd><dt><span class="strong">Since:</span></dt>
<dd>1.0.0</dd></dl>
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