org.springframework.data.redis.connection.DataType Maven / Gradle / Ivy
/*
* Copyright 2011-2018 the original author or authors.
*
* 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 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.springframework.data.redis.connection;
import java.util.EnumSet;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* Enumeration of the Redis data types.
*
* @author Costin Leau
*/
public enum DataType {
NONE("none"), STRING("string"), LIST("list"), SET("set"), ZSET("zset"), HASH("hash");
private static final Map codeLookup = new ConcurrentHashMap<>(6);
static {
for (DataType type : EnumSet.allOf(DataType.class))
codeLookup.put(type.code, type);
}
private final String code;
DataType(String name) {
this.code = name;
}
/**
* Returns the code associated with the current enum.
*
* @return code of this enum
*/
public String code() {
return code;
}
/**
* Utility method for converting an enum code to an actual enum.
*
* @param code enum code
* @return actual enum corresponding to the given code
*/
public static DataType fromCode(String code) {
DataType data = codeLookup.get(code);
if (data == null)
throw new IllegalArgumentException("unknown data type code");
return data;
}
}