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 <div class="subTitle">org.eclipse.persistence.sequencing</div>
 <h2 title="Class Sequence" class="title">Class Sequence</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">java.lang.Object</a></li>
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 <li>org.eclipse.persistence.sequencing.Sequence</li>
 </ul>
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 <dl>
 <dt>All Implemented Interfaces:</dt>
 <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Cloneable.html?is-external=true" title="class or interface in java.lang">Cloneable</a></dd>
 </dl>
 <dl>
 <dt>Direct Known Subclasses:</dt>
 <dd><a href="../../../../org/eclipse/persistence/sequencing/DefaultSequence.html" title="class in org.eclipse.persistence.sequencing">DefaultSequence</a>, <a href="../../../../org/eclipse/persistence/sequencing/StandardSequence.html" title="class in org.eclipse.persistence.sequencing">StandardSequence</a>, <a href="../../../../org/eclipse/persistence/sequencing/UUIDSequence.html" title="class in org.eclipse.persistence.sequencing">UUIDSequence</a></dd>
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 <br>
 <pre>public abstract class <span class="typeNameLabel">Sequence</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">Object</a>
 implements <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Cloneable.html?is-external=true" title="class or interface in java.lang">Cloneable</a></pre>
 <div class="block"><p>
  <b>Purpose</b>: Abstract class to define sequencing.
  <p>
  <b>Description</b>
  A sequence defines how generated ids are obtained.
  The main sequence types are TableSequence and NativeSequence.
  Descriptors using sequencing will use the sequence object defined in their session's
  DatabaseLogin with the name matching their sequence name.  If a specific sequence is
  not defined for the name the DatabaseLogin's default sequence will be used.</div>
 <dl>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/eclipse/persistence/sequencing/TableSequence.html" title="class in org.eclipse.persistence.sequencing"><code>TableSequence</code></a>,
 <a href="../../../../org/eclipse/persistence/sequencing/NativeSequence.html" title="class in org.eclipse.persistence.sequencing"><code>NativeSequence</code></a>,
 <a href="../../../../serialized-form.html#org.eclipse.persistence.sequencing.Sequence">Serialized Form</a></dd>
 </dl>
 </li>
 </ul>
 </div>
 <div class="summary">
 <ul class="blockList">
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 <!-- =========== FIELD SUMMARY =========== -->
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 <h3>Field Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
 <caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Field and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#depth">depth</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#initialValue">initialValue</a></span></code>&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#isCustomQualifier">isCustomQualifier</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#name">name</a></span></code>&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected org.eclipse.persistence.internal.databaseaccess.Platform</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#platform">platform</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#qualifier">qualifier</a></span></code>&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#shouldAlwaysOverrideExistingValue">shouldAlwaysOverrideExistingValue</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#size">size</a></span></code>&nbsp;</td>
 </tr>
 </table>
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 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colOne" scope="col">Constructor and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#Sequence--">Sequence</a></span>()</code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#Sequence-java.lang.String-">Sequence</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</code>
 <div class="block">Create a new sequence with the name.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#Sequence-java.lang.String-int-">Sequence</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
         int&nbsp;size)</code>
 <div class="block">Create a new sequence with the name and sequence pre-allocation size.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#Sequence-java.lang.String-int-int-">Sequence</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
         int&nbsp;size,
         int&nbsp;initialValue)</code>&nbsp;</td>
 </tr>
 </table>
 </li>
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 <!-- ========== METHOD SUMMARY =========== -->
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 <h3>Method Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#clone--">clone</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#equalNameAndSize-org.eclipse.persistence.sequencing.Sequence-org.eclipse.persistence.sequencing.Sequence-">equalNameAndSize</a></span>(<a href="../../../../org/eclipse/persistence/sequencing/Sequence.html" title="class in org.eclipse.persistence.sequencing">Sequence</a>&nbsp;seq1,
                 <a href="../../../../org/eclipse/persistence/sequencing/Sequence.html" title="class in org.eclipse.persistence.sequencing">Sequence</a>&nbsp;seq2)</code>
 <div class="block">INTERNAL:
  Used in equals.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#equals-java.lang.Object-">equals</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj)</code>&nbsp;</td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>org.eclipse.persistence.internal.databaseaccess.Platform</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getDatasourcePlatform--">getDatasourcePlatform</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getGeneratedValue-org.eclipse.persistence.internal.databaseaccess.Accessor-org.eclipse.persistence.internal.sessions.AbstractSession-">getGeneratedValue</a></span>(org.eclipse.persistence.internal.databaseaccess.Accessor&nbsp;accessor,
                  org.eclipse.persistence.internal.sessions.AbstractSession&nbsp;writeSession)</code>
 <div class="block">INTERNAL:
  Return the newly-generated sequencing value.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getGeneratedValue-org.eclipse.persistence.internal.databaseaccess.Accessor-org.eclipse.persistence.internal.sessions.AbstractSession-java.lang.String-">getGeneratedValue</a></span>(org.eclipse.persistence.internal.databaseaccess.Accessor&nbsp;accessor,
                  org.eclipse.persistence.internal.sessions.AbstractSession&nbsp;writeSession,
                  <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;seqName)</code>
 <div class="block">INTERNAL:
  Return the newly-generated sequencing value.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Vector.html?is-external=true" title="class or interface in java.util">Vector</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getGeneratedVector-org.eclipse.persistence.internal.databaseaccess.Accessor-org.eclipse.persistence.internal.sessions.AbstractSession-">getGeneratedVector</a></span>(org.eclipse.persistence.internal.databaseaccess.Accessor&nbsp;accessor,
                   org.eclipse.persistence.internal.sessions.AbstractSession&nbsp;writeSession)</code>
 <div class="block">INTERNAL:
  Return a Vector of newly-generated sequencing values.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Vector.html?is-external=true" title="class or interface in java.util">Vector</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getGeneratedVector-org.eclipse.persistence.internal.databaseaccess.Accessor-org.eclipse.persistence.internal.sessions.AbstractSession-java.lang.String-int-">getGeneratedVector</a></span>(org.eclipse.persistence.internal.databaseaccess.Accessor&nbsp;accessor,
                   org.eclipse.persistence.internal.sessions.AbstractSession&nbsp;writeSession,
                   <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;seqName,
                   int&nbsp;size)</code>
 <div class="block">INTERNAL:
  Return a Vector of newly-generated sequencing values.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getInitialValue--">getInitialValue</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getName--">getName</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getPreallocationSize--">getPreallocationSize</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getQualified-java.lang.String-">getQualified</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</code>
 <div class="block">INTERNAL:</div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#getQualifier--">getQualifier</a></span>()</code>
 <div class="block">INTERNAL:</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#hashCode--">hashCode</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#isConnected--">isConnected</a></span>()</code>
 <div class="block">PUBLIC:
  Indicates that Sequence is connected.</div>
 </td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#isCustomQualifier--">isCustomQualifier</a></span>()</code>
 <div class="block">INTERNAL:</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#isNative--">isNative</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#isTable--">isTable</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#isUnaryTable--">isUnaryTable</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i19" class="rowColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#onConnect--">onConnect</a></span>()</code>
 <div class="block">INTERNAL:
  This method is called when Sequencing object is created.</div>
 </td>
 </tr>
 <tr id="i20" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#onConnect-org.eclipse.persistence.internal.databaseaccess.Platform-">onConnect</a></span>(org.eclipse.persistence.internal.databaseaccess.Platform&nbsp;platform)</code>
 <div class="block">INTERNAL:
  This method is called when Sequencing object is created.</div>
 </td>
 </tr>
 <tr id="i21" class="rowColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#onDisconnect--">onDisconnect</a></span>()</code>
 <div class="block">INTERNAL:
  This method is called when Sequencing object is destroyed.</div>
 </td>
 </tr>
 <tr id="i22" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#onDisconnect-org.eclipse.persistence.internal.databaseaccess.Platform-">onDisconnect</a></span>(org.eclipse.persistence.internal.databaseaccess.Platform&nbsp;platform)</code>
 <div class="block">INTERNAL:
  This method is called when Sequencing object is destroyed.</div>
 </td>
 </tr>
 <tr id="i23" class="rowColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#setDatasourcePlatform-org.eclipse.persistence.internal.databaseaccess.Platform-">setDatasourcePlatform</a></span>(org.eclipse.persistence.internal.databaseaccess.Platform&nbsp;platform)</code>&nbsp;</td>
 </tr>
 <tr id="i24" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#setInitialValue-int-">setInitialValue</a></span>(int&nbsp;initialValue)</code>&nbsp;</td>
 </tr>
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 <td class="colFirst"><code>void</code></td>
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 <td class="colFirst"><code>void</code></td>
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 <div class="block">INTERNAL:</div>
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 <tr id="i28" class="altColor">
 <td class="colFirst"><code>void</code></td>
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 <div class="block">ADVANCED:
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 <tr id="i29" class="rowColor">
 <td class="colFirst"><code>abstract boolean</code></td>
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 <div class="block">INTERNAL:
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 </td>
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 <tr id="i30" class="altColor">
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 <div class="block">INTERNAL:
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 </td>
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 <tr id="i31" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/sequencing/Sequence.html#shouldAlwaysOverrideExistingValue-java.lang.String-">shouldAlwaysOverrideExistingValue</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;seqName)</code>
 <div class="block">INTERNAL:
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 <tr id="i32" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
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 <div class="block">INTERNAL:
  Indicates whether several sequencing values should be acquired at a time
  and be kept by TopLink.</div>
 </td>
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 <tr id="i33" class="rowColor">
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 <div class="block">INTERNAL:
  Indicates whether TopLink should internally call beginTransaction() before
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 </td>
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 <tr id="i34" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
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 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><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">equals</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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 <div class="block">INTERNAL:
  Indicates whether sequencing value should be acquired after INSERT.
  Note that preallocation could be used only in case sequencing values
  should be acquired before insert (this method returns false).
  In default implementation, it is true for table sequencing and native
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 <div class="block">INTERNAL:
  Indicates whether several sequencing values should be acquired at a time
  and be kept by TopLink. This in only possible in case sequencing numbers should
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  In default implementation, it is true for table sequencing and native
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 <div class="block">INTERNAL:
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  In default implementation, it is true for table sequencing and
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 <pre>public abstract&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;getGeneratedValue(org.eclipse.persistence.internal.databaseaccess.Accessor&nbsp;accessor,
                                          org.eclipse.persistence.internal.sessions.AbstractSession&nbsp;writeSession,
                                          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;seqName)</pre>
 <div class="block">INTERNAL:
  Return the newly-generated sequencing value.
  Used only in case preallocation is not used (shouldUsePreallocation()==false).
  Accessor may be non-null only in case shouldUseSeparateConnection()==true.
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  Therefore in case shouldUseSeparateConnection()==true, implementation should handle
  both cases: use a separate connection if provided (accessor != null), or get by
  without it (accessor == null).</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>accessor</code> - Accessor is a separate sequencing accessor (may be null);</dd>
 <dd><code>writeSession</code> - Session is a Session used for writing (either ClientSession or DatabaseSession);</dd>
 <dd><code>seqName</code> - String is sequencing number field name</dd>
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 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;getGeneratedValue(org.eclipse.persistence.internal.databaseaccess.Accessor&nbsp;accessor,
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 <div class="block">INTERNAL:
  Return the newly-generated sequencing value.
  Used only in case preallocation is not used (shouldUsePreallocation()==false).
  Accessor may be non-null only in case shouldUseSeparateConnection()==true.
  Even in this case accessor could be null - if SequencingControl().shouldUseSeparateConnection()==false;
  Therefore in case shouldUseSeparateConnection()==true, implementation should handle
  both cases: use a separate connection if provided (accessor != null), or get by
  without it (accessor == null).</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>accessor</code> - Accessor is a separate sequencing accessor (may be null);</dd>
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                                           org.eclipse.persistence.internal.sessions.AbstractSession&nbsp;writeSession,
                                           <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;seqName,
                                           int&nbsp;size)</pre>
 <div class="block">INTERNAL:
  Return a Vector of newly-generated sequencing values.
  Used only in case preallocation is used (shouldUsePreallocation()==true).
  Accessor may be non-null only in case shouldUseSeparateConnection()==true.
  Even in this case accessor could be null - if SequencingControl().shouldUseSeparateConnection()==false;
  Therefore in case shouldUseSeparateConnection()==true, implementation should handle
  both cases: use a separate connection if provided (accessor != null), or get by
  without it (accessor == null).</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>accessor</code> - Accessor is a separate sequencing accessor (may be null);</dd>
 <dd><code>writeSession</code> - Session is a Session used for writing (either ClientSession or DatabaseSession);</dd>
 <dd><code>seqName</code> - String is sequencing number field name</dd>
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 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Vector.html?is-external=true" title="class or interface in java.util">Vector</a>&nbsp;getGeneratedVector(org.eclipse.persistence.internal.databaseaccess.Accessor&nbsp;accessor,
                                  org.eclipse.persistence.internal.sessions.AbstractSession&nbsp;writeSession)</pre>
 <div class="block">INTERNAL:
  Return a Vector of newly-generated sequencing values.
  Used only in case preallocation is used (shouldUsePreallocation()==true).
  Accessor may be non-null only in case shouldUseSeparateConnection()==true.
  Even in this case accessor could be null - if SequencingControl().shouldUseSeparateConnection()==false;
  Therefore in case shouldUseSeparateConnection()==true, implementation should handle
  both cases: use a separate connection if provided (accessor != null), or get by
  without it (accessor == null).</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>accessor</code> - Accessor is a separate sequencing accessor (may be null);</dd>
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  Don't override this method.</div>
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 <pre>public abstract&nbsp;void&nbsp;onConnect()</pre>
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  This method is called when Sequencing object is created.
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 <pre>public&nbsp;void&nbsp;onDisconnect(org.eclipse.persistence.internal.databaseaccess.Platform&nbsp;platform)</pre>
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  This method is called when Sequencing object is destroyed.
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  This method is called when Sequencing object is destroyed.
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 <pre>public&nbsp;boolean&nbsp;isConnected()</pre>
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  Indicates that Sequence is connected.</div>
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 <pre>protected&nbsp;void&nbsp;verifyPlatform(org.eclipse.persistence.internal.databaseaccess.Platform&nbsp;otherPlatform)</pre>
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  Make sure that the sequence is not used by more than one platform.</div>
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  Set that to true if the sequence should always override the existing pk value.</div>
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 <pre>public&nbsp;boolean&nbsp;shouldAlwaysOverrideExistingValue()</pre>
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  Indicates whether the existing pk value should always be overridden by the sequence.
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  Indicates whether the existing pk value should always be overridden by the sequence.</div>
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