public synchronized <V> V prevNoDup(EntityCursor<V> cursor) {
try {
return cursor.prevNoDup();
} catch (DatabaseException e) {
throw getPersistenceManager().convertDatabaseException(e);
}
}
private <T> void checkCursor(
EntityCursor<T> cursor,
Collection<T> collection,
boolean collectionIsKeySet,
List<List<Integer>> expected,
Getter<T> getter)
throws DatabaseException {
boolean first;
boolean firstDup;
Iterator<T> iterator = collection.iterator();
for (List<Integer> dups : expected) {
for (int i : dups) {
T o = cursor.next();
assertNotNull(o);
assertEquals(i, getter.getKey(o));
/* Value iterator over duplicates. */
if (!collectionIsKeySet) {
assertTrue(iterator.hasNext());
o = iterator.next();
assertNotNull(o);
assertEquals(i, getter.getKey(o));
}
}
}
first = true;
for (List<Integer> dups : expected) {
firstDup = true;
for (int i : dups) {
T o = first ? cursor.first() : (firstDup ? cursor.next() : cursor.nextDup());
assertNotNull(o);
assertEquals(i, getter.getKey(o));
first = false;
firstDup = false;
}
}
first = true;
for (List<Integer> dups : expected) {
if (!dups.isEmpty()) {
int i = dups.get(0);
T o = first ? cursor.first() : cursor.nextNoDup();
assertNotNull(o);
assertEquals(i, getter.getKey(o));
/* Key iterator over non-duplicates. */
if (collectionIsKeySet) {
assertTrue(iterator.hasNext());
o = iterator.next();
assertNotNull(o);
assertEquals(i, getter.getKey(o));
}
first = false;
}
}
List<List<Integer>> reversed = new ArrayList<List<Integer>>();
for (List<Integer> dups : expected) {
ArrayList<Integer> reversedDups = new ArrayList<Integer>(dups);
Collections.reverse(reversedDups);
reversed.add(reversedDups);
}
Collections.reverse(reversed);
first = true;
for (List<Integer> dups : reversed) {
for (int i : dups) {
T o = first ? cursor.last() : cursor.prev();
assertNotNull(o);
assertEquals(i, getter.getKey(o));
first = false;
}
}
first = true;
for (List<Integer> dups : reversed) {
firstDup = true;
for (int i : dups) {
T o = first ? cursor.last() : (firstDup ? cursor.prev() : cursor.prevDup());
assertNotNull(o);
assertEquals(i, getter.getKey(o));
first = false;
firstDup = false;
}
}
first = true;
for (List<Integer> dups : reversed) {
if (!dups.isEmpty()) {
int i = dups.get(0);
T o = first ? cursor.last() : cursor.prevNoDup();
assertNotNull(o);
assertEquals(i, getter.getKey(o));
first = false;
}
}
cursor.close();
}