| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 at |
| * |
| * 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 org.apache.hyracks.data.std.accessors; |
| |
| import org.apache.hyracks.api.dataflow.value.IBinaryComparator; |
| import org.apache.hyracks.api.dataflow.value.IBinaryRangeComparatorFactory; |
| import org.apache.hyracks.data.std.api.IComparable; |
| import org.apache.hyracks.data.std.api.IPointable; |
| import org.apache.hyracks.data.std.api.IPointableFactory; |
| |
| public class PointableBinaryRangeAscComparatorFactory implements IBinaryRangeComparatorFactory { |
| private static final long serialVersionUID = 1L; |
| |
| protected final IPointableFactory pf; |
| |
| public PointableBinaryRangeAscComparatorFactory(IPointableFactory pf) { |
| this.pf = pf; |
| } |
| |
| public static PointableBinaryRangeAscComparatorFactory of(IPointableFactory pf) { |
| return new PointableBinaryRangeAscComparatorFactory(pf); |
| } |
| |
| @Override |
| public IBinaryComparator createMinBinaryComparator() { |
| final IPointable p = pf.createPointable(); |
| return new IBinaryComparator() { |
| @Override |
| public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) { |
| if (l1 == 0 && l2 != 0) |
| return -1; |
| if (l1 != 0 && l2 == 0) |
| return 1; |
| p.set(b1, s1, l1); |
| return ((IComparable) p).compareTo(b2, s2, l2); |
| } |
| }; |
| } |
| |
| @Override |
| public IBinaryComparator createMaxBinaryComparator() { |
| return createMinBinaryComparator(); |
| } |
| } |