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<h2 title="Interface SequenceValueProducer" class="title">Interface SequenceValueProducer</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../com/amazon/carbonado/sequence/AbstractSequenceValueProducer.html" title="class in com.amazon.carbonado.sequence">AbstractSequenceValueProducer</a>, <a href="../../../../com/amazon/carbonado/sequence/SequenceValueGenerator.html" title="class in com.amazon.carbonado.sequence">SequenceValueGenerator</a></dd>
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<pre>public interface <span class="strong">SequenceValueProducer</span></pre>
<div class="block">Produces values for sequences.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.2</dd>
<dt><span class="strong">Author:</span></dt>
<dd>Brian S O'Neill, bcastill</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../com/amazon/carbonado/Sequence.html" title="annotation in com.amazon.carbonado"><code>Sequence</code></a></dd></dl>
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<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../com/amazon/carbonado/sequence/SequenceValueProducer.html#nextDecimalValue()">nextDecimalValue</a></strong>()</code>
<div class="block">Returns the next decimal string value from the sequence, which remains
positive.</div>
</td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../com/amazon/carbonado/sequence/SequenceValueProducer.html#nextIntValue()">nextIntValue</a></strong>()</code>
<div class="block">Returns the next value from the sequence, which may wrap negative if all
positive values are exhausted.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../com/amazon/carbonado/sequence/SequenceValueProducer.html#nextLongValue()">nextLongValue</a></strong>()</code>
<div class="block">Returns the next value from the sequence, which may wrap negative if all
positive values are exhausted.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../com/amazon/carbonado/sequence/SequenceValueProducer.html#nextNumericalValue(int, int)">nextNumericalValue</a></strong>(int radix,
int minLength)</code>
<div class="block">Returns the next numerical string value from the sequence, which remains
positive.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/amazon/carbonado/sequence/SequenceValueProducer.html#returnReservedValues()">returnReservedValues</a></strong>()</code>
<div class="block">Allow any unused reserved values to be returned for re-use.</div>
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<h4>nextLongValue</h4>
<pre>long nextLongValue()
throws <a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></pre>
<div class="block">Returns the next value from the sequence, which may wrap negative if all
positive values are exhausted. When sequence wraps back to initial
value, the sequence is fully exhausted, and an exception is thrown to
indicate this.
<p>Note: this method throws PersistException even for fetch failures
since this method is called by insert operations. Insert operations can
only throw a PersistException.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></code> - for fetch/persist failure or if sequence is exhausted.</dd></dl>
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<h4>nextIntValue</h4>
<pre>int nextIntValue()
throws <a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></pre>
<div class="block">Returns the next value from the sequence, which may wrap negative if all
positive values are exhausted. When sequence wraps back to initial
value, the sequence is fully exhausted, and an exception is thrown to
indicate this.
<p>Note: this method throws PersistException even for fetch failures
since this method is called by insert operations. Insert operations can
only throw a PersistException.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></code> - for fetch/persist failure or if sequence is
exhausted for int values.</dd></dl>
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<h4>nextDecimalValue</h4>
<pre>java.lang.String nextDecimalValue()
throws <a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></pre>
<div class="block">Returns the next decimal string value from the sequence, which remains
positive. When sequence wraps back to initial value, the sequence is
fully exhausted, and an exception is thrown to indicate this.
<p>Note: this method throws PersistException even for fetch failures
since this method is called by insert operations. Insert operations can
only throw a PersistException.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></code> - for fetch/persist failure or if sequence is exhausted.</dd></dl>
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<h4>nextNumericalValue</h4>
<pre>java.lang.String nextNumericalValue(int radix,
int minLength)
throws <a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></pre>
<div class="block">Returns the next numerical string value from the sequence, which remains
positive. When sequence wraps back to initial value, the sequence is
fully exhausted, and an exception is thrown to indicate this.
<p>Note: this method throws PersistException even for fetch failures
since this method is called by insert operations. Insert operations can
only throw a PersistException.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>radix</code> - use 2 for binary, 10 for decimal, 16 for hex. Max is 36.</dd><dd><code>minLength</code> - ensure string is at least this long (padded with zeros if
necessary) to ensure proper string sort</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></code> - for fetch/persist failure or if sequence is exhausted.</dd></dl>
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<h4>returnReservedValues</h4>
<pre>boolean returnReservedValues()
throws <a href="../../../../com/amazon/carbonado/FetchException.html" title="class in com.amazon.carbonado">FetchException</a>,
<a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></pre>
<div class="block">Allow any unused reserved values to be returned for re-use. If the
repository is shared by other processes, then reserved values might not
be returnable.
<p>This method should be called during the shutdown process of a
repository, although calling it does not invalidate this
SequenceValueGenerator. If getNextValue is called again, it will reserve
values again.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>true if reserved values were returned</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../com/amazon/carbonado/FetchException.html" title="class in com.amazon.carbonado">FetchException</a></code></dd>
<dd><code><a href="../../../../com/amazon/carbonado/PersistException.html" title="class in com.amazon.carbonado">PersistException</a></code></dd></dl>
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