| /* |
| * 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.common.data; |
| |
| import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits; |
| import edu.uci.ics.hyracks.data.std.api.INumeric; |
| import edu.uci.ics.hyracks.data.std.api.IPointable; |
| import edu.uci.ics.hyracks.data.std.api.IPointableFactory; |
| import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProvider; |
| import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory; |
| |
| public class PointablePrimitiveValueProviderFactory implements IPrimitiveValueProviderFactory { |
| private static final long serialVersionUID = 1L; |
| |
| private final IPointableFactory pf; |
| |
| public PointablePrimitiveValueProviderFactory(IPointableFactory pf) { |
| this.pf = pf; |
| } |
| |
| @Override |
| public IPrimitiveValueProvider createPrimitiveValueProvider() { |
| final IPointable p = pf.createPointable(); |
| ITypeTraits traits = pf.getTypeTraits(); |
| assert traits.isFixedLength(); |
| final int length = traits.getFixedLength(); |
| return new IPrimitiveValueProvider() { |
| @Override |
| public double getValue(byte[] bytes, int offset) { |
| p.set(bytes, offset, length); |
| return ((INumeric) p).doubleValue(); |
| } |
| }; |
| } |
| } |