| /* |
| * 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.vxquery.compiler.algebricks; |
| |
| import org.apache.vxquery.datamodel.accessors.TaggedValuePointable; |
| |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.data.IBinaryComparatorFactoryProvider; |
| import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator; |
| import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory; |
| |
| public class VXQueryComparatorFactoryProvider implements IBinaryComparatorFactoryProvider { |
| @Override |
| public IBinaryComparatorFactory getBinaryComparatorFactory(Object type, boolean ascending) |
| throws AlgebricksException { |
| return new BinaryComparatorFactory(type, ascending); |
| } |
| |
| private static class BinaryComparatorFactory implements IBinaryComparatorFactory { |
| private static final long serialVersionUID = 1L; |
| |
| private final boolean ascending; |
| |
| public BinaryComparatorFactory(Object type, boolean ascending) { |
| this.ascending = ascending; |
| } |
| |
| @Override |
| public IBinaryComparator createBinaryComparator() { |
| final TaggedValuePointable tvp1 = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable(); |
| final TaggedValuePointable tvp2 = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable(); |
| return new IBinaryComparator() { |
| @Override |
| public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) { |
| tvp1.set(b1, s1, l1); |
| tvp2.set(b2, s2, l2); |
| return 0; |
| } |
| }; |
| } |
| } |
| } |