| /** |
| * 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 edu.uci.ics.hivesterix.serde.lazy; |
| |
| import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector; |
| |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference; |
| |
| /** |
| * LazyPrimitive stores a primitive Object in a LazyObject. |
| */ |
| public abstract class LazyNonPrimitive<OI extends ObjectInspector> extends |
| LazyObject<OI> { |
| |
| protected byte[] bytes; |
| protected int start; |
| protected int length; |
| |
| /** |
| * Create a LazyNonPrimitive object with the specified ObjectInspector. |
| * |
| * @param oi |
| * The ObjectInspector would have to have a hierarchy of |
| * LazyObjectInspectors with the leaf nodes being |
| * WritableObjectInspectors. It's used both for accessing the |
| * type hierarchy of the complex object, as well as getting meta |
| * information (separator, nullSequence, etc) when parsing the |
| * lazy object. |
| */ |
| protected LazyNonPrimitive(OI oi) { |
| super(oi); |
| bytes = null; |
| start = 0; |
| length = 0; |
| } |
| |
| @Override |
| public void init(byte[] bytes, int start, int length) { |
| if (bytes == null) { |
| throw new RuntimeException("bytes cannot be null!"); |
| } |
| this.bytes = bytes; |
| this.start = start; |
| this.length = length; |
| assert start >= 0; |
| assert start + length <= bytes.length; |
| } |
| |
| @Override |
| public Object getObject() { |
| return this; |
| } |
| |
| @Override |
| public int hashCode() { |
| return LazyUtils.hashBytes(bytes, start, length); |
| } |
| |
| @Override |
| public void init(IFrameTupleReference tuple) { |
| } |
| |
| } |