/**
* Repositions to a given raw key/data pair.
*
* @throws IllegalStateException when the database has unordered keys or unordered duplicates.
* @return whether the search succeeded.
*/
boolean repositionExact(
byte[] keyBytes, byte[] priKeyBytes, byte[] valueBytes, boolean lockForWrite)
throws DatabaseException {
LockMode lockMode = getLockMode(lockForWrite);
OperationStatus status = null;
/* Use the given key/data byte arrays. */
setThangs(keyBytes, priKeyBytes, valueBytes);
/* Position on the given key/data pair. */
if (view.recNumRenumber) {
/* getSearchBoth doesn't work with recno-renumber databases. */
status =
cursor.getSearchKey(
keyThang, primaryKeyThang,
valueThang, lockMode);
} else {
status =
cursor.getSearchBoth(
keyThang, primaryKeyThang,
valueThang, lockMode);
}
return (status == OperationStatus.SUCCESS);
}
/**
* Repositions to a given raw key/data pair, or just past it if that record has been deleted.
*
* @return REPOS_EXACT, REPOS_NEXT or REPOS_EOF.
*/
int repositionRange(byte[] keyBytes, byte[] priKeyBytes, byte[] valueBytes, boolean lockForWrite)
throws DatabaseException {
LockMode lockMode = getLockMode(lockForWrite);
OperationStatus status = null;
/* Use the given key/data byte arrays. */
setThangs(keyBytes, priKeyBytes, valueBytes);
/* Position on or after the given key/data pair. */
if (view.dupsAllowed) {
status =
cursor.getSearchBothRange(
keyThang, primaryKeyThang,
valueThang, lockMode);
}
if (status != OperationStatus.SUCCESS) {
status =
cursor.getSearchKeyRange(
keyThang, primaryKeyThang,
valueThang, lockMode);
}
/* Return the result of the operation. */
if (status == OperationStatus.SUCCESS) {
if (!KeyRange.equalBytes(
keyBytes,
0,
keyBytes.length,
keyThang.getData(),
keyThang.getOffset(),
keyThang.getSize())) {
return REPOS_NEXT;
}
if (view.dupsAllowed) {
DatabaseEntry thang = view.isSecondary() ? primaryKeyThang : valueThang;
byte[] bytes = view.isSecondary() ? priKeyBytes : valueBytes;
if (!KeyRange.equalBytes(
bytes, 0, bytes.length, thang.getData(), thang.getOffset(), thang.getSize())) {
return REPOS_NEXT;
}
}
return REPOS_EXACT;
} else {
return REPOS_EOF;
}
}
