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<h2 title="Annotation Type Nullable" class="title">Annotation Type Nullable</h2>
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<pre>@Documented
@Retention(value=RUNTIME)
@Target(value=METHOD)
public @interface <span class="strong">Nullable</span></pre>
<div class="block">Identifies that a <a href="../../../com/amazon/carbonado/Storable.html" title="interface in com.amazon.carbonado"><code>Storable</code></a> property can have a null value. By
default, all Storable properties are required to have a non-null value. It
is illegal to declare a property as nullable whose type is a primitive
non-object.
<p>Example:<pre>
public interface UserInfo extends Storable<UserInfo> {
<b>@Nullable</b>
String getName();
void setName(String name);
...
}
</pre>
<p>If the repository does not allow a property to be declared as nullable
because the underlying schema differs, it can be also annotated as <a href="../../../com/amazon/carbonado/Independent.html" title="annotation in com.amazon.carbonado"><code>Independent</code></a>. This makes it easier for a common set of Storables to interact
with schemas which are slightly different. Attempting to persist null into a
property for which null is not allowed will likely result in a constraint
exception.</div>
<dl><dt><span class="strong">Author:</span></dt>
<dd>Brian S O'Neill</dd></dl>
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