225 * @param severity Severity level.
226 *
227 * @return Set view of the individual {@link PrinterStateReason
228 * PrinterStateReason} attributes at the given {@link Severity
229 * Severity} level.
230 *
231 * @exception NullPointerException
232 * (unchecked exception) Thrown if <CODE>severity</CODE> is null.
233 */
234 public Set<PrinterStateReason> printerStateReasonSet(Severity severity) {
235 if (severity == null) {
236 throw new NullPointerException("severity is null");
237 }
238 return new PrinterStateReasonSet (severity, entrySet());
239 }
240
241 private class PrinterStateReasonSet
242 extends AbstractSet<PrinterStateReason>
243 {
244 private Severity mySeverity;
245 private Set myEntrySet;
246
247 public PrinterStateReasonSet(Severity severity, Set entrySet) {
248 mySeverity = severity;
249 myEntrySet = entrySet;
250 }
251
252 public int size() {
253 int result = 0;
254 Iterator iter = iterator();
255 while (iter.hasNext()) {
256 iter.next();
257 ++ result;
258 }
259 return result;
260 }
261
262 public Iterator iterator() {
263 return new PrinterStateReasonSetIterator(mySeverity,
264 myEntrySet.iterator());
265 }
266 }
267
268 private class PrinterStateReasonSetIterator implements Iterator {
269 private Severity mySeverity;
270 private Iterator myIterator;
271 private Map.Entry myEntry;
272
273 public PrinterStateReasonSetIterator(Severity severity,
274 Iterator iterator) {
275 mySeverity = severity;
276 myIterator = iterator;
277 goToNext();
278 }
279
280 private void goToNext() {
281 myEntry = null;
282 while (myEntry == null && myIterator.hasNext()) {
283 myEntry = (Map.Entry) myIterator.next();
284 if ((Severity) myEntry.getValue() != mySeverity) {
285 myEntry = null;
286 }
287 }
288 }
289
290 public boolean hasNext() {
291 return myEntry != null;
292 }
293
294 public Object next() {
295 if (myEntry == null) {
296 throw new NoSuchElementException();
297 }
298 Object result = myEntry.getKey();
299 goToNext();
300 return result;
301 }
302
303 public void remove() {
304 throw new UnsupportedOperationException();
305 }
306 }
307
308 }
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225 * @param severity Severity level.
226 *
227 * @return Set view of the individual {@link PrinterStateReason
228 * PrinterStateReason} attributes at the given {@link Severity
229 * Severity} level.
230 *
231 * @exception NullPointerException
232 * (unchecked exception) Thrown if <CODE>severity</CODE> is null.
233 */
234 public Set<PrinterStateReason> printerStateReasonSet(Severity severity) {
235 if (severity == null) {
236 throw new NullPointerException("severity is null");
237 }
238 return new PrinterStateReasonSet (severity, entrySet());
239 }
240
241 private class PrinterStateReasonSet
242 extends AbstractSet<PrinterStateReason>
243 {
244 private Severity mySeverity;
245 //
246 private Set<Map.Entry<PrinterStateReason, Severity>> myEntrySet;
247
248 public PrinterStateReasonSet(Severity severity,
249 Set<Map.Entry<PrinterStateReason, Severity>> entrySet) {
250 mySeverity = severity;
251 myEntrySet = entrySet;
252 }
253
254 public int size() {
255 int result = 0;
256 Iterator<?> iter = iterator();
257 while (iter.hasNext()) {
258 iter.next();
259 ++ result;
260 }
261 return result;
262 }
263
264 public Iterator<PrinterStateReason> iterator() {
265 return new PrinterStateReasonSetIterator(mySeverity,
266 myEntrySet.iterator());
267 }
268 }
269
270 private class PrinterStateReasonSetIterator implements Iterator<PrinterStateReason> {
271 private Severity mySeverity;
272 private Iterator<Map.Entry<PrinterStateReason, Severity>> myIterator;
273 private Map.Entry<PrinterStateReason, Severity> myEntry;
274
275 public PrinterStateReasonSetIterator(Severity severity,
276 Iterator<Map.Entry<PrinterStateReason, Severity>> iterator) {
277 mySeverity = severity;
278 myIterator = iterator;
279 goToNext();
280 }
281
282 private void goToNext() {
283 myEntry = null;
284 while (myEntry == null && myIterator.hasNext()) {
285 myEntry = myIterator.next();
286 if (myEntry.getValue() != mySeverity) {
287 myEntry = null;
288 }
289 }
290 }
291
292 public boolean hasNext() {
293 return myEntry != null;
294 }
295
296 public PrinterStateReason next() {
297 if (myEntry == null) {
298 throw new NoSuchElementException();
299 }
300 PrinterStateReason result = myEntry.getKey();
301 goToNext();
302 return result;
303 }
304
305 public void remove() {
306 throw new UnsupportedOperationException();
307 }
308 }
309
310 }
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