| /* |
| * Copyright 2009-2010 by The Regents of the University of California |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * you may obtain a copy of the License from |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package edu.uci.ics.hyracks.storage.am.btree.api; |
| |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference; |
| import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexTupleReference; |
| import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException; |
| import edu.uci.ics.hyracks.storage.am.common.ophelpers.FindTupleMode; |
| import edu.uci.ics.hyracks.storage.am.common.ophelpers.FindTupleNoExactMatchPolicy; |
| import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator; |
| |
| public interface IBTreeLeafFrame extends IBTreeFrame { |
| public int findTupleIndex(ITupleReference searchKey, ITreeIndexTupleReference pageTuple, MultiComparator cmp, |
| FindTupleMode ftm, FindTupleNoExactMatchPolicy ftp) throws HyracksDataException; |
| |
| public int findUpdateTupleIndex(ITupleReference tuple) throws TreeIndexException; |
| |
| public int findUpsertTupleIndex(ITupleReference tuple) throws TreeIndexException; |
| |
| /** |
| * @param searchTuple the tuple to match |
| * @param targetTupleIndex the index of the tuple to check |
| * @return the tuple at targetTupleIndex if its keys match searchTuple's keys, otherwise null |
| */ |
| public ITupleReference getMatchingKeyTuple(ITupleReference searchTuple, int targetTupleIndex); |
| |
| public void setNextLeaf(int nextPage); |
| |
| public int getNextLeaf(); |
| } |