spring EnumToIntegerConverter 源码
spring EnumToIntegerConverter 代码
文件路径：/spring-core/src/main/java/org/springframework/core/convert/support/EnumToIntegerConverter.java
/*
* Copyright 2002-2016 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.core.convert.support;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.converter.Converter;
/**
* Calls {@link Enum#ordinal()} to convert a source Enum to an Integer.
* This converter will not match enums with interfaces that can be converted.
*
* @author Yanming Zhou
* @since 4.3
*/
final class EnumToIntegerConverter extends AbstractConditionalEnumConverter implements Converter<Enum<?>, Integer> {
public EnumToIntegerConverter(ConversionService conversionService) {
super(conversionService);
}
@Override
public Integer convert(Enum<?> source) {
return source.ordinal();
}
}
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