| /** |
| * 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.hadoop.hbase.types; |
| |
| import org.apache.hadoop.hbase.classification.InterfaceAudience; |
| import org.apache.hadoop.hbase.classification.InterfaceStability; |
| import org.apache.hadoop.hbase.util.Order; |
| import org.apache.hadoop.hbase.util.OrderedBytes; |
| import org.apache.hadoop.hbase.util.PositionedByteRange; |
| |
| |
| /** |
| * A {@code short} of 16-bits using a fixed-length encoding. Built on |
| * {@link OrderedBytes#encodeInt16(PositionedByteRange, short, Order)}. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| public class OrderedInt16 extends OrderedBytesBase<Short> { |
| |
| public static final OrderedInt16 ASCENDING = new OrderedInt16(Order.ASCENDING); |
| public static final OrderedInt16 DESCENDING = new OrderedInt16(Order.DESCENDING); |
| |
| protected OrderedInt16(Order order) { super(order); } |
| |
| @Override |
| public boolean isNullable() { return false; } |
| |
| @Override |
| public int encodedLength(Short val) { return 3; } |
| |
| @Override |
| public Class<Short> encodedClass() { return Short.class; } |
| |
| @Override |
| public Short decode(PositionedByteRange src) { |
| return OrderedBytes.decodeInt16(src); |
| } |
| |
| @Override |
| public int encode(PositionedByteRange dst, Short val) { |
| if (null == val) throw new IllegalArgumentException("Null values not supported."); |
| return OrderedBytes.encodeInt16(dst, val, order); |
| } |
| |
| /** |
| * Read a {@code short} value from the buffer {@code src}. |
| */ |
| public short decodeShort(PositionedByteRange src) { |
| return OrderedBytes.decodeInt16(src); |
| } |
| |
| /** |
| * Write instance {@code val} into buffer {@code dst}. |
| */ |
| public int encodeShort(PositionedByteRange dst, short val) { |
| return OrderedBytes.encodeInt16(dst, val, order); |
| } |
| } |