spring-data-redis DataType 源码
spring-data-redis DataType 代码
文件路径：/src/main/java/org/springframework/data/redis/connection/DataType.java
/*
* Copyright 2011-2022 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
*
* https://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
* @author Mark Paluch
*/
public enum DataType {
NONE("none"), STRING("string"), LIST("list"), SET("set"), ZSET("zset"), HASH("hash"),
/**
* @since 2.2
*/
STREAM("stream");
private static final Map<String, DataType> codeLookup = new ConcurrentHashMap<>(7);
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;
}
}
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