Examples of com.mongodb.DBCursor.hint()

com.mongodb.DBCursor.hint()
Informs the database of indexed fields of the collection in order to improve performance. @param indexKeys a DBObject with fields and direction @return same DBCursor for chaining operations

                    }
                    if (limit > 0) {
                        cur.limit(limit);
                    }
                    if (hint != null) {
                        cur.hint(hint);
                    }
                    if (explain) {
                        return cur.explain();
                    }

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                }
                if (limit > 0) {
                    cur.limit(limit);
                }
                if (hint != null) {
                    cur.hint(hint);
                }
                if (explain) {
                    return cur.explain();
                }

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        if (snapshotted)
            cursor.snapshot();
        if (sort != null)
            cursor.sort(sort);
        if (indexHint != null)
            cursor.hint(indexHint);


        if (null != readPref) {
            cursor.setReadPreference(readPref);
        }

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        if (query.getSortObject() != null) {
          DBObject sortDbo = type != null ? getMappedSortObject(query, type) : query.getSortObject();
          cursorToUse = cursorToUse.sort(sortDbo);
        }
        if (StringUtils.hasText(query.getHint())) {
          cursorToUse = cursorToUse.hint(query.getHint());
        }
        if (query.getMeta().hasValues()) {
          for (Entry<String, Object> entry : query.getMeta().values()) {
            cursorToUse = cursorToUse.addSpecial(entry.getKey(), entry.getValue());
          }

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        DBCursor cursor = oplogCollection.find(indexFilter).setOptions(options);


        // Toku sometimes gets stuck without this hint:
        if (indexFilter.containsField(MongoDBRiver.MONGODB_ID_FIELD)) {
            cursor = cursor.hint("_id_");
        }
        isRiverStale(cursor, time);
        return cursor;
    }

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        }
        if (sort != null) {
            cursor.sort(sort);
        }
        if (indexHint != null) {
            cursor.hint(indexHint);
        }


        if (null != readPref) {
            cursor.setReadPreference(readPref);
        }

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