338 * @return true if this Duration is equivalent to Duration.INDEFINITE or Double.POSITIVE_INFINITY.
339 */
340 public boolean isIndefinite() {
341 return millis == Double.POSITIVE_INFINITY;
342 }
343
344 /**
345 * Gets whether this Duration instance is Unknown. A Duration is Unknown
346 * if it equals Duration.UNKNOWN.
347 * @return true if this Duration is equivalent to Duration.UNKNOWN or Double.isNaN(millis)
348 */
349 public boolean isUnknown() {
350 return Double.isNaN(millis);
351 }
352
353 /**
354 * Returns true if the specified duration is less than (<) this instance.
355 * INDEFINITE is treated as if it were positive infinity.
356 *
357 * @param other cannot be null
358 * @return true if millis < other.millis using double arithmetic
359 */
360 public boolean lessThan(Duration other) {
361 return millis < other.millis;
362 }
363
364 /**
365 * Returns true if the specified duration is less than or equal to (<=) this instance.
366 * INDEFINITE is treated as if it were positive infinity.
367 *
368 * @param other cannot be null
369 * @return true if millis <= other.millis using double arithmetic
370 */
371 public boolean lessThanOrEqualTo(Duration other) {
372 return millis <= other.millis;
373 }
374
375 /**
376 * Returns true if the specified duration is greater than (>) this instance.
377 * INDEFINITE is treated as if it were positive infinity.
378 *
379 * @param other cannot be null
380 * @return true if millis > other.millis using double arithmetic
381 */
382 public boolean greaterThan(Duration other) {
383 return millis > other.millis;
384 }
385
386 /**
387 * Returns true if the specified duration is greater than or equal to (>=) this instance.
388 * INDEFINITE is treated as if it were positive infinity.
389 *
390 * @param other cannot be null
391 * @return true if millis >= other.millis using double arithmetic
392 */
393 public boolean greaterThanOrEqualTo(Duration other) {
394 return millis >= other.millis;
395 }
396
397 /**
398 * Returns a string representation of this {@code Duration} object.
399 * @return a string representation of this {@code Duration} object.
400 */
401 @Override public String toString() {
402 return isIndefinite() ? "INDEFINITE" : (isUnknown() ? "UNKNOWN" : millis + " ms");
403 }
404
405 /**
406 * Compares durations represented by this object and the specified object.
407 * Returns a negative integer, zero, or a positive integer as this duration
408 * is less than, equal to, or greater than the specified duration.
409 * @param d the duration to be compared.
410 * @return a negative integer, zero, or a positive integer as this duration
411 * is less than, equal to, or greater than the specified duration.
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338 * @return true if this Duration is equivalent to Duration.INDEFINITE or Double.POSITIVE_INFINITY.
339 */
340 public boolean isIndefinite() {
341 return millis == Double.POSITIVE_INFINITY;
342 }
343
344 /**
345 * Gets whether this Duration instance is Unknown. A Duration is Unknown
346 * if it equals Duration.UNKNOWN.
347 * @return true if this Duration is equivalent to Duration.UNKNOWN or Double.isNaN(millis)
348 */
349 public boolean isUnknown() {
350 return Double.isNaN(millis);
351 }
352
353 /**
354 * Returns true if the specified duration is less than (<) this instance.
355 * INDEFINITE is treated as if it were positive infinity.
356 *
357 * @param other cannot be null
358 * @return true if millis < other.millis using double arithmetic
359 */
360 public boolean lessThan(Duration other) {
361 return millis < other.millis;
362 }
363
364 /**
365 * Returns true if the specified duration is less than or equal to (<=) this instance.
366 * INDEFINITE is treated as if it were positive infinity.
367 *
368 * @param other cannot be null
369 * @return true if millis <= other.millis using double arithmetic
370 */
371 public boolean lessThanOrEqualTo(Duration other) {
372 return millis <= other.millis;
373 }
374
375 /**
376 * Returns true if the specified duration is greater than (>) this instance.
377 * INDEFINITE is treated as if it were positive infinity.
378 *
379 * @param other cannot be null
380 * @return true if millis > other.millis using double arithmetic
381 */
382 public boolean greaterThan(Duration other) {
383 return millis > other.millis;
384 }
385
386 /**
387 * Returns true if the specified duration is greater than or equal to (>=) this instance.
388 * INDEFINITE is treated as if it were positive infinity.
389 *
390 * @param other cannot be null
391 * @return true if millis >= other.millis using double arithmetic
392 */
393 public boolean greaterThanOrEqualTo(Duration other) {
394 return millis >= other.millis;
395 }
396
397 /**
398 * Returns a string representation of this {@code Duration} object.
399 * @return a string representation of this {@code Duration} object.
400 */
401 @Override public String toString() {
402 return isIndefinite() ? "INDEFINITE" : (isUnknown() ? "UNKNOWN" : millis + " ms");
403 }
404
405 /**
406 * Compares durations represented by this object and the specified object.
407 * Returns a negative integer, zero, or a positive integer as this duration
408 * is less than, equal to, or greater than the specified duration.
409 * @param d the duration to be compared.
410 * @return a negative integer, zero, or a positive integer as this duration
411 * is less than, equal to, or greater than the specified duration.
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