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javax.inject</FONT>
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Interface Provider&lt;T&gt;</H2>
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<DT><PRE>public interface <B>Provider&lt;T&gt;</B></DL>
</PRE>
<P>
Provides instances of <code>T</code>. Typically implemented by an injector. For
any type <code>T</code> that can be injected, you can also inject
<code>Provider&lt;T&gt;</code>. Compared to injecting <code>T</code> directly, injecting
<code>Provider&lt;T&gt;</code> enables:
<ul>
<li>retrieving multiple instances.</li>
<li>lazy or optional retrieval of an instance.</li>
<li>breaking circular dependencies.</li>
<li>abstracting scope so you can look up an instance in a smaller scope
from an instance in a containing scope.</li>
</ul>
<p>For example:
<pre>
class Car {
&#064;Inject Car(Provider&lt;Seat> seatProvider) {
Seat driver = seatProvider.get();
Seat passenger = seatProvider.get();
...
}
}</pre>
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<CODE>&nbsp;<A HREF="../../javax/inject/Provider.html" title="type parameter in Provider">T</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/inject/Provider.html#get()">get</A></B>()</CODE>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Provides a fully-constructed and injected instance of <code>T</code>.</TD>
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<A NAME="get()"><!-- --></A><H3>
get</H3>
<PRE>
<A HREF="../../javax/inject/Provider.html" title="type parameter in Provider">T</A> <B>get</B>()</PRE>
<DL>
<DD>Provides a fully-constructed and injected instance of <code>T</code>.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.lang.RuntimeException</CODE> - if the injector encounters an error while
providing an instance. For example, if an injectable member on
<code>T</code> throws an exception, the injector may wrap the exception
and throw it to the caller of <code>get()</code>. Callers should not try
to handle such exceptions as the behavior may vary across injector
implementations and even different configurations of the same injector.</DL>
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