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DriverSelector
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org.osgi.service.device</FONT>
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Interface DriverSelector</H2>
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<DT><PRE>public interface <B>DriverSelector</B></DL>
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<P>
When the device manager detects a new Device service, it calls all registered
Driver services to determine if anyone matches the Device service. If at
least one Driver service matches, the device manager must choose one. If
there is a Driver Selector service registered with the Framework, the device
manager will ask it to make the selection. If there is no Driver Selector
service, or if it returns an invalid result, or throws an
<code>Exception</code>, the device manager uses the default selection
strategy.
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<DT><B>Since:</B></DT>
<DD>1.1</DD>
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<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/osgi/service/device/DriverSelector.html#SELECT_NONE">SELECT_NONE</A></B></CODE>
<BR>
Return value from <code>DriverSelector.select</code>, if no Driver
service should be attached to the Device service.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/osgi/service/device/DriverSelector.html#select(org.osgi.framework.ServiceReference, org.osgi.service.device.Match[])">select</A></B>(org.osgi.framework.ServiceReference reference,
<A HREF="../../../../org/osgi/service/device/Match.html" title="interface in org.osgi.service.device">Match</A>[] matches)</CODE>
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Select one of the matching Driver services.</TD>
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<A NAME="SELECT_NONE"><!-- --></A><H3>
SELECT_NONE</H3>
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static final int <B>SELECT_NONE</B></PRE>
<DL>
<DD>Return value from <code>DriverSelector.select</code>, if no Driver
service should be attached to the Device service. The value is -1.
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<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.osgi.service.device.DriverSelector.SELECT_NONE">Constant Field Values</A></DL>
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<A NAME="select(org.osgi.framework.ServiceReference, org.osgi.service.device.Match[])"><!-- --></A><H3>
select</H3>
<PRE>
int <B>select</B>(org.osgi.framework.ServiceReference reference,
<A HREF="../../../../org/osgi/service/device/Match.html" title="interface in org.osgi.service.device">Match</A>[] matches)</PRE>
<DL>
<DD>Select one of the matching Driver services. The device manager calls this
method if there is at least one driver bidding for a device. Only Driver
services that have responded with nonzero (not <A HREF="../../../../org/osgi/service/device/Device.html#MATCH_NONE"><CODE>Device.MATCH_NONE</CODE></A>)
<code></code> match values will be included in the list.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>reference</CODE> - the <code>ServiceReference</code> object of the Device
service.<DD><CODE>matches</CODE> - the array of all non-zero matches.
<DT><B>Returns:</B><DD>index into the array of <code>Match</code> objects, or
<code>SELECT_NONE</code> if no Driver service should be attached</DL>
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