spring-batch CustomerOperation 源码
spring-batch CustomerOperation 代码
文件路径：/spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/trade/CustomerOperation.java
/*
* Copyright 2006-2014 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.batch.sample.domain.trade;
import java.util.HashMap;
import java.util.Map;
/**
* Enum representing on of 3 possible actions on a customer update: Add, update, or delete
*
* @author Lucas Ward
*
*/
public enum CustomerOperation {
ADD('A'), UPDATE('U'), DELETE('D');
private final char code;
private static final Map<Character, CustomerOperation> CODE_MAP;
private CustomerOperation(char code) {
this.code = code;
}
static {
CODE_MAP = new HashMap<>();
for (CustomerOperation operation : values()) {
CODE_MAP.put(operation.getCode(), operation);
}
}
public static CustomerOperation fromCode(char code) {
if (CODE_MAP.containsKey(code)) {
return CODE_MAP.get(code);
}
else {
throw new IllegalArgumentException("Invalid code: [" + code + "]");
}
}
public char getCode() {
return code;
}
}
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