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<h2 title="Annotation Type Key" class="title">Annotation Type Key</h2>
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<pre>@Documented
@Retention(value=RUNTIME)
@Target(value={})
public @interface <span class="strong">Key</span></pre>
<div class="block">Identifies a <a href="../../../com/amazon/carbonado/Storable.html" title="interface in com.amazon.carbonado"><code>Storable</code></a> property as being a member of an alternate
key. An alternate key is just as good as the primary key for uniquely
identifying a storable instance, except repositories are usually more
flexible with alternate keys. For example, dropping an alternate key and
reconstructing it should not result in loss of data. Alternate keys are
often implemented as indexes with a uniqueness constraint.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Brian S O'Neill</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../com/amazon/carbonado/AlternateKeys.html" title="annotation in com.amazon.carbonado"><code>AlternateKeys</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/Key.html#value()">value</a></strong></code>
<div class="block">A list of property names, which may be prefixed with '+' or '-' to
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<pre>public abstract java.lang.String[] value</pre>
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indicate a preference for ascending or descending order.</div>
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