| /* |
| * 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.geode.redis.internal.data; |
| |
| import static java.util.Collections.emptyList; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.redis.internal.netty.Coder; |
| |
| public class NullRedisHash extends RedisHash { |
| NullRedisHash() { |
| super(emptyList()); |
| } |
| |
| @Override |
| public boolean isNull() { |
| return true; |
| } |
| |
| @Override |
| public int hset(Region<ByteArrayWrapper, RedisData> region, ByteArrayWrapper key, |
| List<ByteArrayWrapper> fieldsToSet, boolean nx) { |
| region.put(key, new RedisHash(fieldsToSet)); |
| return fieldsToSet.size() / 2; |
| } |
| |
| @Override |
| public long hincrby(Region<ByteArrayWrapper, RedisData> region, ByteArrayWrapper key, |
| ByteArrayWrapper field, long increment) |
| throws NumberFormatException, ArithmeticException { |
| region.put(key, |
| new RedisHash(Arrays.asList(field, new ByteArrayWrapper(Coder.longToBytes(increment))))); |
| return increment; |
| } |
| |
| @Override |
| public double hincrbyfloat(Region<ByteArrayWrapper, RedisData> region, ByteArrayWrapper key, |
| ByteArrayWrapper field, double increment) throws NumberFormatException { |
| region.put(key, |
| new RedisHash( |
| Arrays.asList(field, new ByteArrayWrapper(Coder.doubleToBytes(increment))))); |
| return increment; |
| } |
| } |