| /* |
| * Copyright 2009-2013 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.rtree.dataflow; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider; |
| import edu.uci.ics.hyracks.storage.am.common.api.ISearchPredicate; |
| import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex; |
| import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor; |
| import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexSearchOperatorNodePushable; |
| import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator; |
| import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference; |
| import edu.uci.ics.hyracks.storage.am.rtree.impls.SearchPredicate; |
| import edu.uci.ics.hyracks.storage.am.rtree.util.RTreeUtils; |
| |
| public class RTreeSearchOperatorNodePushable extends IndexSearchOperatorNodePushable { |
| protected PermutingFrameTupleReference searchKey; |
| protected MultiComparator cmp; |
| |
| public RTreeSearchOperatorNodePushable(AbstractTreeIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, |
| int partition, IRecordDescriptorProvider recordDescProvider, int[] keyFields) { |
| super(opDesc, ctx, partition, recordDescProvider); |
| if (keyFields != null && keyFields.length > 0) { |
| searchKey = new PermutingFrameTupleReference(); |
| searchKey.setFieldPermutation(keyFields); |
| } |
| } |
| |
| @Override |
| protected ISearchPredicate createSearchPredicate() { |
| ITreeIndex treeIndex = (ITreeIndex) index; |
| cmp = RTreeUtils.getSearchMultiComparator(treeIndex.getComparatorFactories(), searchKey); |
| return new SearchPredicate(searchKey, cmp); |
| } |
| |
| @Override |
| protected void resetSearchPredicate(int tupleIndex) { |
| if (searchKey != null) { |
| searchKey.reset(accessor, tupleIndex); |
| } |
| } |
| } |