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<h2 title="Annotation Type Authoritative" class="title">Annotation Type Authoritative</h2>
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<pre>@Documented
@Retention(value=RUNTIME)
@Target(value=TYPE)
public @interface <span class="strong">Authoritative</span></pre>
<div class="block">Indicates that all accesses to this <a href="../../../com/amazon/carbonado/Storable.html" title="interface in com.amazon.carbonado"><code>Storable</code></a> must come from an
 authoritative source. When reading or writing the Storable, the <a href="../../../com/amazon/carbonado/Repository.html" title="interface in com.amazon.carbonado"><code>Repository</code></a> must guarantee that it is operating on the latest, correct
 version of the Storable.

 <p>Repositories that cache potentially stale Storables are required to
 ensure the cache is always up-to-date or bypass the cache
 altogether. Replicating repositories which may have a propagation delay must
 always access the master repository.

 <p>Repositories which provide eventual consistency but don't rely on a
 master <i>must</i> throw <a href="../../../com/amazon/carbonado/UnsupportedTypeException.html" title="class in com.amazon.carbonado"><code>UnsupportedTypeException</code></a>, as there is no
 authoritative source.

 <p>Example:<pre>
 <b>&#64;Authoritative</b>
 &#64;PrimaryKey("sequenceName")
 public interface SequenceValue extends Storable&lt;SequenceValue&gt; {
     String getSequenceName();
     void setSequenceName(String name);

     long getNextValue();
     void setNextValue(long value);

     ...
 }
 </pre></div>
<dl><dt><span class="strong">Author:</span></dt>
  <dd>Brian S O'Neill</dd></dl>
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