19 |
|
* best-effort in the presence of concurrent modifications, and do |
20 |
|
* <em>NOT</em> throw {@link ConcurrentModificationException}. An |
21 |
|
* iterator's {@code next()} method returns consecutive elements as |
22 |
< |
* they appear in the underlying array upon each access. Alternatvely, |
22 |
> |
* they appear in the underlying array upon each access. Alternatively, |
23 |
|
* method {@link #snapshotIterator} may be used for deterministic |
24 |
|
* traversals, at the expense of making a copy, and unavailability of |
25 |
|
* method {@code Iterator.remove}. |
32 |
|
* |
33 |
|
* @author Doug Lea |
34 |
|
*/ |
35 |
< |
public class ReadMostlyVector<E> implements List<E>, RandomAccess, Cloneable, java.io.Serializable { |
35 |
> |
public class ReadMostlyVector<E> |
36 |
> |
implements List<E>, RandomAccess, Cloneable, java.io.Serializable { |
37 |
|
private static final long serialVersionUID = 8673264195747942595L; |
38 |
|
|
39 |
|
/* |
200 |
|
return -1; |
201 |
|
} |
202 |
|
|
203 |
< |
final void rawAdd(Object e) { |
203 |
> |
final void rawAdd(E e) { |
204 |
|
int n = count; |
205 |
|
Object[] items = array; |
206 |
|
if (n >= items.length) |
209 |
|
count = n + 1; |
210 |
|
} |
211 |
|
|
212 |
< |
final void rawAddAt(int index, Object e) { |
212 |
> |
final void rawAddAt(int index, E e) { |
213 |
|
int n = count; |
214 |
|
Object[] items = array; |
215 |
|
if (index > n) |
262 |
|
* field under lock. |
263 |
|
*/ |
264 |
|
final boolean internalRemoveAll(Collection<?> c, int origin, int bound) { |
265 |
< |
SequenceLock lock = this.lock; |
265 |
> |
final SequenceLock lock = this.lock; |
266 |
|
boolean removed = false; |
267 |
|
lock.lock(); |
268 |
|
try { |
281 |
|
} |
282 |
|
|
283 |
|
final boolean internalRetainAll(Collection<?> c, int origin, int bound) { |
284 |
< |
SequenceLock lock = this.lock; |
284 |
> |
final SequenceLock lock = this.lock; |
285 |
|
boolean removed = false; |
286 |
|
if (c != this) { |
287 |
|
lock.lock(); |
328 |
|
} |
329 |
|
|
330 |
|
final boolean internalContainsAll(Collection<?> c, int origin, int bound) { |
331 |
< |
SequenceLock lock = this.lock; |
331 |
> |
final SequenceLock lock = this.lock; |
332 |
|
boolean contained; |
333 |
|
boolean locked = false; |
334 |
|
try { |
368 |
|
} |
369 |
|
|
370 |
|
final boolean internalEquals(List<?> list, int origin, int bound) { |
371 |
< |
SequenceLock lock = this.lock; |
371 |
> |
final SequenceLock lock = this.lock; |
372 |
|
boolean locked = false; |
373 |
|
boolean equal; |
374 |
|
try { |
409 |
|
} |
410 |
|
|
411 |
|
final int internalHashCode(int origin, int bound) { |
412 |
< |
SequenceLock lock = this.lock; |
412 |
> |
final SequenceLock lock = this.lock; |
413 |
|
int hash; |
414 |
|
boolean locked = false; |
415 |
|
try { |
441 |
|
} |
442 |
|
|
443 |
|
final String internalToString(int origin, int bound) { |
444 |
< |
SequenceLock lock = this.lock; |
444 |
> |
final SequenceLock lock = this.lock; |
445 |
|
String ret; |
446 |
|
boolean locked = false; |
447 |
|
try { |
488 |
|
|
489 |
|
final Object[] internalToArray(int origin, int bound) { |
490 |
|
Object[] result; |
491 |
< |
SequenceLock lock = this.lock; |
491 |
> |
final SequenceLock lock = this.lock; |
492 |
|
boolean locked = false; |
493 |
|
try { |
494 |
|
for (;;) { |
515 |
|
return result; |
516 |
|
} |
517 |
|
|
518 |
+ |
@SuppressWarnings("unchecked") |
519 |
|
final <T> T[] internalToArray(T[] a, int origin, int bound) { |
520 |
|
int alen = a.length; |
521 |
|
T[] result; |
522 |
< |
SequenceLock lock = this.lock; |
522 |
> |
final SequenceLock lock = this.lock; |
523 |
|
boolean locked = false; |
524 |
|
try { |
525 |
|
for (;;) { |
558 |
|
// public List methods |
559 |
|
|
560 |
|
public boolean add(E e) { |
561 |
< |
SequenceLock lock = this.lock; |
561 |
> |
final SequenceLock lock = this.lock; |
562 |
|
lock.lock(); |
563 |
|
try { |
564 |
|
rawAdd(e); |
569 |
|
} |
570 |
|
|
571 |
|
public void add(int index, E element) { |
572 |
< |
SequenceLock lock = this.lock; |
572 |
> |
final SequenceLock lock = this.lock; |
573 |
|
lock.lock(); |
574 |
|
try { |
575 |
|
rawAddAt(index, element); |
583 |
|
int len = elements.length; |
584 |
|
if (len == 0) |
585 |
|
return false; |
586 |
< |
SequenceLock lock = this.lock; |
586 |
> |
final SequenceLock lock = this.lock; |
587 |
|
lock.lock(); |
588 |
|
try { |
589 |
|
Object[] items = array; |
600 |
|
} |
601 |
|
|
602 |
|
public boolean addAll(int index, Collection<? extends E> c) { |
603 |
< |
SequenceLock lock = this.lock; |
603 |
> |
final SequenceLock lock = this.lock; |
604 |
|
boolean ret; |
605 |
|
Object[] elements = c.toArray(); |
606 |
|
lock.lock(); |
613 |
|
} |
614 |
|
|
615 |
|
public void clear() { |
616 |
< |
SequenceLock lock = this.lock; |
616 |
> |
final SequenceLock lock = this.lock; |
617 |
|
lock.lock(); |
618 |
|
try { |
619 |
|
int n = count; |
643 |
|
} |
644 |
|
|
645 |
|
public E get(int index) { |
646 |
< |
SequenceLock lock = this.lock; |
646 |
> |
final SequenceLock lock = this.lock; |
647 |
|
for (;;) { |
648 |
|
long seq = lock.awaitAvailability(); |
649 |
|
int n = count; |
650 |
|
Object[] items = array; |
651 |
|
if (n > items.length) |
652 |
|
continue; |
653 |
< |
Object e; boolean ex; |
654 |
< |
if (index < 0 || index >= n) { |
655 |
< |
e = null; |
654 |
< |
ex = true; |
655 |
< |
} |
656 |
< |
else { |
657 |
< |
e = items[index]; |
658 |
< |
ex = false; |
659 |
< |
} |
653 |
> |
boolean outOfBounds = (index < 0 || index >= n); |
654 |
> |
@SuppressWarnings("unchecked") |
655 |
> |
E e = outOfBounds ? null : (E) items[index]; |
656 |
|
if (lock.getSequence() == seq) { |
657 |
< |
if (ex) |
657 |
> |
if (outOfBounds) |
658 |
|
throw new ArrayIndexOutOfBoundsException(index); |
659 |
|
else |
660 |
< |
return (E)e; |
660 |
> |
return e; |
661 |
|
} |
662 |
|
} |
663 |
|
} |
667 |
|
} |
668 |
|
|
669 |
|
public int indexOf(Object o) { |
670 |
< |
SequenceLock lock = this.lock; |
675 |
< |
for (;;) { |
676 |
< |
long seq = lock.awaitAvailability(); |
677 |
< |
Object[] items = array; |
678 |
< |
int n = count; |
679 |
< |
if (n <= items.length) { |
680 |
< |
for (int i = 0; i < n; ++i) { |
681 |
< |
Object e = items[i]; |
682 |
< |
if (lock.getSequence() != seq) { |
683 |
< |
lock.lock(); |
684 |
< |
try { |
685 |
< |
return rawIndexOf(o, 0, count); |
686 |
< |
} finally { |
687 |
< |
lock.unlock(); |
688 |
< |
} |
689 |
< |
} |
690 |
< |
else if ((o == null) ? e == null : o.equals(e)) |
691 |
< |
return i; |
692 |
< |
} |
693 |
< |
return -1; |
694 |
< |
} |
695 |
< |
} |
670 |
> |
return indexOf(o, 0); |
671 |
|
} |
672 |
|
|
673 |
|
public boolean isEmpty() { |
679 |
|
} |
680 |
|
|
681 |
|
public int lastIndexOf(Object o) { |
682 |
< |
SequenceLock lock = this.lock; |
682 |
> |
final SequenceLock lock = this.lock; |
683 |
|
for (;;) { |
684 |
|
long seq = lock.awaitAvailability(); |
685 |
|
Object[] items = array; |
712 |
|
} |
713 |
|
|
714 |
|
public E remove(int index) { |
715 |
< |
SequenceLock lock = this.lock; |
741 |
< |
Object oldValue; |
715 |
> |
final SequenceLock lock = this.lock; |
716 |
|
lock.lock(); |
717 |
|
try { |
718 |
|
if (index < 0 || index >= count) |
719 |
|
throw new ArrayIndexOutOfBoundsException(index); |
720 |
< |
oldValue = array[index]; |
720 |
> |
@SuppressWarnings("unchecked") |
721 |
> |
E oldValue = (E) array[index]; |
722 |
|
rawRemoveAt(index); |
723 |
+ |
return oldValue; |
724 |
|
} finally { |
725 |
|
lock.unlock(); |
726 |
|
} |
751 |
– |
return (E)oldValue; |
727 |
|
} |
728 |
|
|
729 |
|
public boolean remove(Object o) { |
730 |
< |
SequenceLock lock = this.lock; |
756 |
< |
boolean removed; |
730 |
> |
final SequenceLock lock = this.lock; |
731 |
|
lock.lock(); |
732 |
|
try { |
733 |
< |
removed = rawRemoveAt(rawIndexOf(o, 0, count)); |
733 |
> |
return rawRemoveAt(rawIndexOf(o, 0, count)); |
734 |
|
} finally { |
735 |
|
lock.unlock(); |
736 |
|
} |
763 |
– |
return removed; |
737 |
|
} |
738 |
|
|
739 |
|
public boolean removeAll(Collection<?> c) { |
745 |
|
} |
746 |
|
|
747 |
|
public E set(int index, E element) { |
748 |
< |
Object oldValue; |
776 |
< |
SequenceLock lock = this.lock; |
748 |
> |
final SequenceLock lock = this.lock; |
749 |
|
lock.lock(); |
750 |
|
try { |
751 |
|
Object[] items = array; |
752 |
|
if (index < 0 || index >= count) |
753 |
|
throw new ArrayIndexOutOfBoundsException(index); |
754 |
< |
oldValue = items[index]; |
754 |
> |
@SuppressWarnings("unchecked") |
755 |
> |
E oldValue = (E) items[index]; |
756 |
|
items[index] = element; |
757 |
+ |
return oldValue; |
758 |
|
} finally { |
759 |
|
lock.unlock(); |
760 |
|
} |
787 |
– |
return (E)oldValue; |
761 |
|
} |
762 |
|
|
763 |
|
public int size() { |
793 |
|
* @return {@code true} if the element was added |
794 |
|
*/ |
795 |
|
public boolean addIfAbsent(E e) { |
796 |
< |
boolean added; |
824 |
< |
SequenceLock lock = this.lock; |
796 |
> |
final SequenceLock lock = this.lock; |
797 |
|
lock.lock(); |
798 |
|
try { |
799 |
|
if (rawIndexOf(e, 0, count) < 0) { |
800 |
|
rawAdd(e); |
801 |
< |
added = true; |
801 |
> |
return true; |
802 |
|
} |
803 |
|
else |
804 |
< |
added = false; |
804 |
> |
return false; |
805 |
|
} finally { |
806 |
|
lock.unlock(); |
807 |
|
} |
836 |
– |
return added; |
808 |
|
} |
809 |
|
|
810 |
|
/** |
826 |
|
lock.lock(); |
827 |
|
try { |
828 |
|
for (int i = 0; i < clen; ++i) { |
829 |
< |
Object e = cs[i]; |
829 |
> |
@SuppressWarnings("unchecked") |
830 |
> |
E e = (E) cs[i]; |
831 |
|
if (rawIndexOf(e, 0, count) < 0) { |
832 |
|
rawAdd(e); |
833 |
|
++added; |
853 |
|
} |
854 |
|
|
855 |
|
static final class SnapshotIterator<E> implements Iterator<E> { |
856 |
< |
final Object[] items; |
857 |
< |
int cursor; |
856 |
> |
private final Object[] items; |
857 |
> |
private int cursor; |
858 |
|
SnapshotIterator(ReadMostlyVector<E> v) { items = v.toArray(); } |
859 |
|
public boolean hasNext() { return cursor < items.length; } |
860 |
+ |
@SuppressWarnings("unchecked") |
861 |
|
public E next() { |
862 |
|
if (cursor < items.length) |
863 |
|
return (E) items[cursor++]; |
870 |
|
|
871 |
|
/** See {@link Vector#firstElement} */ |
872 |
|
public E firstElement() { |
873 |
< |
SequenceLock lock = this.lock; |
873 |
> |
final SequenceLock lock = this.lock; |
874 |
|
for (;;) { |
875 |
|
long seq = lock.awaitAvailability(); |
876 |
|
Object[] items = array; |
878 |
|
int n = count; |
879 |
|
if (n > len) |
880 |
|
continue; |
881 |
< |
Object e; boolean ex; |
882 |
< |
if (n > 0) { |
883 |
< |
e = items[0]; |
911 |
< |
ex = false; |
912 |
< |
} |
913 |
< |
else { |
914 |
< |
e = null; |
915 |
< |
ex = true; |
916 |
< |
} |
881 |
> |
boolean empty = (n == 0); |
882 |
> |
@SuppressWarnings("unchecked") |
883 |
> |
E e = empty ? null : (E) items[0]; |
884 |
|
if (lock.getSequence() == seq) { |
885 |
< |
if (ex) |
885 |
> |
if (empty) |
886 |
|
throw new NoSuchElementException(); |
887 |
|
else |
888 |
< |
return (E)e; |
888 |
> |
return e; |
889 |
|
} |
890 |
|
} |
891 |
|
} |
892 |
|
|
893 |
|
/** See {@link Vector#lastElement} */ |
894 |
|
public E lastElement() { |
895 |
< |
SequenceLock lock = this.lock; |
895 |
> |
final SequenceLock lock = this.lock; |
896 |
|
for (;;) { |
897 |
|
long seq = lock.awaitAvailability(); |
898 |
|
Object[] items = array; |
900 |
|
int n = count; |
901 |
|
if (n > len) |
902 |
|
continue; |
903 |
< |
Object e; boolean ex; |
904 |
< |
if (n > 0) { |
905 |
< |
e = items[n - 1]; |
939 |
< |
ex = false; |
940 |
< |
} |
941 |
< |
else { |
942 |
< |
e = null; |
943 |
< |
ex = true; |
944 |
< |
} |
903 |
> |
boolean empty = (n == 0); |
904 |
> |
@SuppressWarnings("unchecked") |
905 |
> |
E e = empty ? null : (E) items[n - 1]; |
906 |
|
if (lock.getSequence() == seq) { |
907 |
< |
if (ex) |
907 |
> |
if (empty) |
908 |
|
throw new NoSuchElementException(); |
909 |
|
else |
910 |
< |
return (E)e; |
910 |
> |
return e; |
911 |
|
} |
912 |
|
} |
913 |
|
} |
914 |
|
|
915 |
|
/** See {@link Vector#indexOf(Object, int)} */ |
916 |
|
public int indexOf(Object o, int index) { |
917 |
< |
SequenceLock lock = this.lock; |
917 |
> |
final SequenceLock lock = this.lock; |
918 |
|
int idx = 0; |
919 |
|
boolean ex = false; |
920 |
|
long seq = lock.awaitAvailability(); |
933 |
|
if (index < 0) |
934 |
|
ex = true; |
935 |
|
else |
936 |
< |
idx = rawIndexOf(o, 0, count); |
936 |
> |
idx = rawIndexOf(o, index, count); |
937 |
|
} finally { |
938 |
|
lock.unlock(); |
939 |
|
} |
945 |
|
|
946 |
|
/** See {@link Vector#lastIndexOf(Object, int)} */ |
947 |
|
public int lastIndexOf(Object o, int index) { |
948 |
< |
SequenceLock lock = this.lock; |
948 |
> |
final SequenceLock lock = this.lock; |
949 |
|
int idx = 0; |
950 |
|
boolean ex = false; |
951 |
|
long seq = lock.awaitAvailability(); |
978 |
|
public void setSize(int newSize) { |
979 |
|
if (newSize < 0) |
980 |
|
throw new ArrayIndexOutOfBoundsException(newSize); |
981 |
< |
SequenceLock lock = this.lock; |
981 |
> |
final SequenceLock lock = this.lock; |
982 |
|
lock.lock(); |
983 |
|
try { |
984 |
|
int n = count; |
997 |
|
|
998 |
|
/** See {@link Vector#copyInto} */ |
999 |
|
public void copyInto(Object[] anArray) { |
1000 |
< |
SequenceLock lock = this.lock; |
1000 |
> |
final SequenceLock lock = this.lock; |
1001 |
|
lock.lock(); |
1002 |
|
try { |
1003 |
|
System.arraycopy(array, 0, anArray, 0, count); |
1008 |
|
|
1009 |
|
/** See {@link Vector#trimToSize} */ |
1010 |
|
public void trimToSize() { |
1011 |
< |
SequenceLock lock = this.lock; |
1011 |
> |
final SequenceLock lock = this.lock; |
1012 |
|
lock.lock(); |
1013 |
|
try { |
1014 |
|
Object[] items = array; |
1023 |
|
/** See {@link Vector#ensureCapacity} */ |
1024 |
|
public void ensureCapacity(int minCapacity) { |
1025 |
|
if (minCapacity > 0) { |
1026 |
< |
SequenceLock lock = this.lock; |
1026 |
> |
final SequenceLock lock = this.lock; |
1027 |
|
lock.lock(); |
1028 |
|
try { |
1029 |
|
if (minCapacity - array.length > 0) |
1082 |
|
// other methods |
1083 |
|
|
1084 |
|
public ReadMostlyVector<E> clone() { |
1085 |
< |
SequenceLock lock = this.lock; |
1085 |
> |
final SequenceLock lock = this.lock; |
1086 |
|
Object[] a = null; |
1087 |
|
boolean retry = false; |
1088 |
|
long seq = lock.awaitAvailability(); |
1106 |
|
|
1107 |
|
private void writeObject(java.io.ObjectOutputStream s) |
1108 |
|
throws java.io.IOException { |
1109 |
< |
SequenceLock lock = this.lock; |
1109 |
> |
final SequenceLock lock = this.lock; |
1110 |
|
lock.lock(); |
1111 |
|
try { |
1112 |
|
s.defaultWriteObject(); |
1115 |
|
} |
1116 |
|
} |
1117 |
|
|
1118 |
< |
static final class Itr<E> implements ListIterator<E>, Enumeration<E> { |
1118 |
> |
static final class Itr<E> implements ListIterator<E>, Enumeration<E> { |
1119 |
|
final ReadMostlyVector<E> list; |
1120 |
|
final SequenceLock lock; |
1121 |
|
Object[] items; |
1122 |
< |
Object next, prev; |
1122 |
> |
E next, prev; |
1123 |
|
long seq; |
1124 |
|
int cursor; |
1125 |
|
int fence; |
1145 |
|
lock.getSequence() != seq); |
1146 |
|
} |
1147 |
|
|
1148 |
+ |
@SuppressWarnings("unchecked") |
1149 |
|
public boolean hasNext() { |
1150 |
|
boolean valid; |
1151 |
|
int i = cursor; |
1154 |
|
valid = false; |
1155 |
|
break; |
1156 |
|
} |
1157 |
< |
next = items[i]; |
1157 |
> |
next = (E) items[i]; |
1158 |
|
if (lock.getSequence() == seq) { |
1159 |
|
valid = true; |
1160 |
|
break; |
1164 |
|
return validNext = valid; |
1165 |
|
} |
1166 |
|
|
1167 |
+ |
@SuppressWarnings("unchecked") |
1168 |
|
public boolean hasPrevious() { |
1169 |
|
boolean valid; |
1170 |
|
int i = cursor - 1; |
1173 |
|
valid = false; |
1174 |
|
break; |
1175 |
|
} |
1176 |
< |
prev = items[i]; |
1176 |
> |
prev = (E) items[i]; |
1177 |
|
if (lock.getSequence() == seq) { |
1178 |
|
valid = true; |
1179 |
|
break; |
1187 |
|
if (validNext || hasNext()) { |
1188 |
|
validNext = false; |
1189 |
|
lastRet = cursor++; |
1190 |
< |
return (E) next; |
1190 |
> |
return next; |
1191 |
|
} |
1192 |
|
throw new NoSuchElementException(); |
1193 |
|
} |
1196 |
|
if (validPrev || hasPrevious()) { |
1197 |
|
validPrev = false; |
1198 |
|
lastRet = cursor--; |
1199 |
< |
return (E) prev; |
1199 |
> |
return prev; |
1200 |
|
} |
1201 |
|
throw new NoSuchElementException(); |
1202 |
|
} |
1253 |
|
public int previousIndex() { return cursor - 1; } |
1254 |
|
} |
1255 |
|
|
1256 |
< |
static final class ReadMostlyVectorSublist<E> implements List<E>, RandomAccess, java.io.Serializable { |
1256 |
> |
static final class ReadMostlyVectorSublist<E> |
1257 |
> |
implements List<E>, RandomAccess, java.io.Serializable { |
1258 |
> |
static final long serialVersionUID = 3041673470172026059L; |
1259 |
> |
|
1260 |
|
final ReadMostlyVector<E> list; |
1261 |
|
final int offset; |
1262 |
|
volatile int size; |
1263 |
|
|
1264 |
< |
ReadMostlyVectorSublist(ReadMostlyVector<E> list, int offset, int size) { |
1264 |
> |
ReadMostlyVectorSublist(ReadMostlyVector<E> list, |
1265 |
> |
int offset, int size) { |
1266 |
|
this.list = list; |
1267 |
|
this.offset = offset; |
1268 |
|
this.size = size; |
1274 |
|
} |
1275 |
|
|
1276 |
|
public boolean add(E element) { |
1277 |
< |
SequenceLock lock = list.lock; |
1277 |
> |
final SequenceLock lock = list.lock; |
1278 |
|
lock.lock(); |
1279 |
|
try { |
1280 |
|
int c = size; |
1287 |
|
} |
1288 |
|
|
1289 |
|
public void add(int index, E element) { |
1290 |
< |
SequenceLock lock = list.lock; |
1290 |
> |
final SequenceLock lock = list.lock; |
1291 |
|
lock.lock(); |
1292 |
|
try { |
1293 |
|
if (index < 0 || index > size) |
1301 |
|
|
1302 |
|
public boolean addAll(Collection<? extends E> c) { |
1303 |
|
Object[] elements = c.toArray(); |
1304 |
< |
int added; |
1338 |
< |
SequenceLock lock = list.lock; |
1304 |
> |
final SequenceLock lock = list.lock; |
1305 |
|
lock.lock(); |
1306 |
|
try { |
1307 |
|
int s = size; |
1308 |
|
int pc = list.count; |
1309 |
|
list.rawAddAllAt(offset + s, elements); |
1310 |
< |
added = list.count - pc; |
1310 |
> |
int added = list.count - pc; |
1311 |
|
size = s + added; |
1312 |
+ |
return added != 0; |
1313 |
|
} finally { |
1314 |
|
lock.unlock(); |
1315 |
|
} |
1349 |
– |
return added != 0; |
1316 |
|
} |
1317 |
|
|
1318 |
|
public boolean addAll(int index, Collection<? extends E> c) { |
1319 |
|
Object[] elements = c.toArray(); |
1320 |
< |
int added; |
1355 |
< |
SequenceLock lock = list.lock; |
1320 |
> |
final SequenceLock lock = list.lock; |
1321 |
|
lock.lock(); |
1322 |
|
try { |
1323 |
|
int s = size; |
1325 |
|
throw new ArrayIndexOutOfBoundsException(index); |
1326 |
|
int pc = list.count; |
1327 |
|
list.rawAddAllAt(index + offset, elements); |
1328 |
< |
added = list.count - pc; |
1328 |
> |
int added = list.count - pc; |
1329 |
|
size = s + added; |
1330 |
+ |
return added != 0; |
1331 |
|
} finally { |
1332 |
|
lock.unlock(); |
1333 |
|
} |
1368 |
– |
return added != 0; |
1334 |
|
} |
1335 |
|
|
1336 |
|
public void clear() { |
1337 |
< |
SequenceLock lock = list.lock; |
1337 |
> |
final SequenceLock lock = list.lock; |
1338 |
|
lock.lock(); |
1339 |
|
try { |
1340 |
|
list.internalClear(offset, offset + size); |
1371 |
|
} |
1372 |
|
|
1373 |
|
public int indexOf(Object o) { |
1374 |
< |
SequenceLock lock = list.lock; |
1374 |
> |
final SequenceLock lock = list.lock; |
1375 |
|
long seq = lock.awaitAvailability(); |
1376 |
|
Object[] items = list.array; |
1377 |
|
int c = list.count; |
1399 |
|
} |
1400 |
|
|
1401 |
|
public int lastIndexOf(Object o) { |
1402 |
< |
SequenceLock lock = list.lock; |
1402 |
> |
final SequenceLock lock = list.lock; |
1403 |
|
long seq = lock.awaitAvailability(); |
1404 |
|
Object[] items = list.array; |
1405 |
|
int c = list.count; |
1427 |
|
} |
1428 |
|
|
1429 |
|
public E remove(int index) { |
1430 |
< |
Object result; |
1466 |
< |
SequenceLock lock = list.lock; |
1430 |
> |
final SequenceLock lock = list.lock; |
1431 |
|
lock.lock(); |
1432 |
|
try { |
1433 |
|
Object[] items = list.array; |
1434 |
|
int i = index + offset; |
1435 |
|
if (index < 0 || index >= size || i >= items.length) |
1436 |
|
throw new ArrayIndexOutOfBoundsException(index); |
1437 |
< |
result = items[i]; |
1437 |
> |
@SuppressWarnings("unchecked") |
1438 |
> |
E result = (E) items[i]; |
1439 |
|
list.rawRemoveAt(i); |
1440 |
|
size--; |
1441 |
+ |
return result; |
1442 |
|
} finally { |
1443 |
|
lock.unlock(); |
1444 |
|
} |
1479 |
– |
return (E)result; |
1445 |
|
} |
1446 |
|
|
1447 |
|
public boolean remove(Object o) { |
1448 |
< |
boolean removed = false; |
1484 |
< |
SequenceLock lock = list.lock; |
1448 |
> |
final SequenceLock lock = list.lock; |
1449 |
|
lock.lock(); |
1450 |
|
try { |
1451 |
|
if (list.rawRemoveAt(list.rawIndexOf(o, offset, |
1452 |
|
offset + size))) { |
1489 |
– |
removed = true; |
1453 |
|
--size; |
1454 |
+ |
return true; |
1455 |
|
} |
1456 |
+ |
else |
1457 |
+ |
return false; |
1458 |
|
} finally { |
1459 |
|
lock.unlock(); |
1460 |
|
} |
1495 |
– |
return removed; |
1461 |
|
} |
1462 |
|
|
1463 |
|
public boolean removeAll(Collection<?> c) { |
1505 |
|
final ReadMostlyVector<E> list; |
1506 |
|
final SequenceLock lock; |
1507 |
|
Object[] items; |
1508 |
< |
Object next, prev; |
1508 |
> |
E next, prev; |
1509 |
|
long seq; |
1510 |
|
int cursor; |
1511 |
|
int fence; |
1536 |
|
} while (lock.getSequence() != seq); |
1537 |
|
} |
1538 |
|
|
1539 |
+ |
@SuppressWarnings("unchecked") |
1540 |
|
public boolean hasNext() { |
1541 |
|
boolean valid; |
1542 |
|
int i = cursor; |
1545 |
|
valid = false; |
1546 |
|
break; |
1547 |
|
} |
1548 |
< |
next = items[i]; |
1548 |
> |
next = (E) items[i]; |
1549 |
|
if (lock.getSequence() == seq) { |
1550 |
|
valid = true; |
1551 |
|
break; |
1555 |
|
return validNext = valid; |
1556 |
|
} |
1557 |
|
|
1558 |
+ |
@SuppressWarnings("unchecked") |
1559 |
|
public boolean hasPrevious() { |
1560 |
|
boolean valid; |
1561 |
|
int i = cursor - 1; |
1564 |
|
valid = false; |
1565 |
|
break; |
1566 |
|
} |
1567 |
< |
prev = items[i]; |
1567 |
> |
prev = (E) items[i]; |
1568 |
|
if (lock.getSequence() == seq) { |
1569 |
|
valid = true; |
1570 |
|
break; |
1578 |
|
if (validNext || hasNext()) { |
1579 |
|
validNext = false; |
1580 |
|
lastRet = cursor++; |
1581 |
< |
return (E) next; |
1581 |
> |
return next; |
1582 |
|
} |
1583 |
|
throw new NoSuchElementException(); |
1584 |
|
} |
1587 |
|
if (validPrev || hasPrevious()) { |
1588 |
|
validPrev = false; |
1589 |
|
lastRet = cursor--; |
1590 |
< |
return (E) prev; |
1590 |
> |
return prev; |
1591 |
|
} |
1592 |
|
throw new NoSuchElementException(); |
1593 |
|
} |