@Override
public Object internalRead(final Object obj1, final BInputJson bin) throws BException {
final FindOptions obj =
(FindOptions) (obj1 != null ? obj1 : bin.onObjectCreated(new FindOptions()));
final BJsonObject js = bin.currentObject;
obj.reserved = js.getString("reserved");
return obj;
}
@Override
public Key<T> getKey(final FindOptions options) {
final MorphiaIterator<T, Key<T>> it = fetchKeys(options.copy().limit(1));
Key<T> key = (it.hasNext()) ? it.next() : null;
it.close();
return key;
}
@Override
public T get(final FindOptions options) {
final MorphiaIterator<T, T> it = fetch(options.copy().limit(1));
try {
return (it.hasNext()) ? it.next() : null;
} finally {
it.close();
}
}
@Override
public QueryImpl<T> cloneQuery() {
final QueryImpl<T> n = new QueryImpl<T>(clazz, dbColl, ds);
n.cache = ds.getMapper().createEntityCache(); // fresh cache
n.includeFields = includeFields;
n.setQuery(n); // feels weird, correct?
n.validateName = validateName;
n.validateType = validateType;
n.baseQuery = copy(baseQuery);
n.options = options != null ? options.copy() : null;
// fields from superclass
n.setAttachedTo(getAttachedTo());
n.setChildren(getChildren() == null ? null : new ArrayList<Criteria>(getChildren()));
return n;
}
private DBCursor prepareCursor(final FindOptions findOptions) {
final DBObject query = getQueryObject();
if (LOG.isTraceEnabled()) {
LOG.trace(
String.format(
"Running query(%s) : %s, options: %s,", dbColl.getName(), query, findOptions));
}
if (findOptions.isSnapshot()
&& (findOptions.getSortDBObject() != null || findOptions.hasHint())) {
LOG.warning("Snapshotted query should not have hint/sort.");
}
if (findOptions.getCursorType() != NonTailable && (findOptions.getSortDBObject() != null)) {
LOG.warning("Sorting on tail is not allowed.");
}
return dbColl
.find(
query,
findOptions.getOptions().copy().sort(getSortObject()).projection(getFieldsObject()))
.setDecoderFactory(ds.getDecoderFact());
}
private int hash(final FindOptions options) {
if (options == null) {
return 0;
}
int result = options.getBatchSize();
result = 31 * result + getLimit();
result = 31 * result + (options.getModifiers() != null ? options.getModifiers().hashCode() : 0);
result =
31 * result + (options.getProjection() != null ? options.getProjection().hashCode() : 0);
result =
31 * result
+ (int) (options.getMaxTime(MILLISECONDS) ^ options.getMaxTime(MILLISECONDS) >>> 32);
result =
31 * result
+ (int)
(options.getMaxAwaitTime(MILLISECONDS)
^ options.getMaxAwaitTime(MILLISECONDS) >>> 32);
result = 31 * result + options.getSkip();
result =
31 * result
+ (options.getSortDBObject() != null ? options.getSortDBObject().hashCode() : 0);
result =
31 * result + (options.getCursorType() != null ? options.getCursorType().hashCode() : 0);
result = 31 * result + (options.isNoCursorTimeout() ? 1 : 0);
result = 31 * result + (options.isOplogReplay() ? 1 : 0);
result = 31 * result + (options.isPartial() ? 1 : 0);
result =
31 * result
+ (options.getReadPreference() != null ? options.getReadPreference().hashCode() : 0);
result =
31 * result + (options.getReadConcern() != null ? options.getReadConcern().hashCode() : 0);
result = 31 * result + (options.getCollation() != null ? options.getCollation().hashCode() : 0);
return result;
}
private boolean compare(final FindOptions these, final FindOptions those) {
if (these == null && those != null || these != null && those == null) {
return false;
}
if (these == null) {
return true;
}
DBCollectionFindOptions dbOptions = these.getOptions();
DBCollectionFindOptions that = those.getOptions();
if (dbOptions.getBatchSize() != that.getBatchSize()) {
return false;
}
if (dbOptions.getLimit() != that.getLimit()) {
return false;
}
if (dbOptions.getMaxTime(MILLISECONDS) != that.getMaxTime(MILLISECONDS)) {
return false;
}
if (dbOptions.getMaxAwaitTime(MILLISECONDS) != that.getMaxAwaitTime(MILLISECONDS)) {
return false;
}
if (dbOptions.getSkip() != that.getSkip()) {
return false;
}
if (dbOptions.isNoCursorTimeout() != that.isNoCursorTimeout()) {
return false;
}
if (dbOptions.isOplogReplay() != that.isOplogReplay()) {
return false;
}
if (dbOptions.isPartial() != that.isPartial()) {
return false;
}
if (dbOptions.getModifiers() != null
? !dbOptions.getModifiers().equals(that.getModifiers())
: that.getModifiers() != null) {
return false;
}
if (dbOptions.getProjection() != null
? !dbOptions.getProjection().equals(that.getProjection())
: that.getProjection() != null) {
return false;
}
if (dbOptions.getSort() != null
? !dbOptions.getSort().equals(that.getSort())
: that.getSort() != null) {
return false;
}
if (dbOptions.getCursorType() != that.getCursorType()) {
return false;
}
if (dbOptions.getReadPreference() != null
? !dbOptions.getReadPreference().equals(that.getReadPreference())
: that.getReadPreference() != null) {
return false;
}
if (dbOptions.getReadConcern() != null
? !dbOptions.getReadConcern().equals(that.getReadConcern())
: that.getReadConcern() != null) {
return false;
}
return dbOptions.getCollation() != null
? dbOptions.getCollation().equals(that.getCollation())
: that.getCollation() == null;
}
