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<TITLE>Listening for Print Service Status Changes
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<B><A HREF="../javax.print.event/pkg.html">javax.print.event</A></B><font color="#666666" SIZE="-2">
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<h3>
e717.
Listening for Print Service Status Changes</h3>
Examples of print service status include <code>PrinterIsAcceptingJobs</code>
(indicates if a print service will accept new print jobs) and
<code>QueuedJobCount</code> (the number of print jobs to be processed by the
print service). Use a <code>PrintServiceAttributeListener</code> to get
status changes on a print server. This example adds a listener to all
print services.
To obtain detailed status changes for a print job,
see <a href="../javax.print.event/JobDone.html" class="eglink"><font size="-1"><b>e718</b> Listening for Print Job Status Changes</font></a>.
<pre>
// Add a listener to all print services
PrintService[] services = PrintServiceLookup.lookupPrintServices(null, null);
for (int i=0; i<services.length; i++) {
services[i].addPrintServiceAttributeListener(new MyPrintServiceAttributeListener());
}
class MyPrintServiceAttributeListener implements PrintServiceAttributeListener {
public void attributeUpdate(PrintServiceAttributeEvent psae) {
// Some event occurred with a print service
PrintService service = psae.getPrintService();
Attribute[] attrs = psae.getAttributes().toArray();
for (int i=0; i<attrs.length; i++) {
String attrName = attrs[i].getName();
// New value
String attrValue = attrs[i].toString();
<font color="#0066ff"><i>process</i></font>(service, attrName, attrValue);
}
}
}
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Related Examples
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e718. <a class="eglink" href="JobDone.html?l=rel">
Listening for Print Job Status Changes
</a>
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e719. <a class="eglink" href="JobAttrEvents.html?l=rel">
Listening for Print Job Attribute Changes
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