com.sharksharding.util.mapper.FieldResolver Maven / Gradle / Ivy
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/*
* Copyright 2015-2101 gaoxianglong
*
* 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 com.sharksharding.util.mapper;
import java.lang.reflect.Field;
import java.sql.ResultSet;
/**
* 字段注解解析器，用于解析标记了@Column的字段
*
* @author gaoxianglong
*
* @version 1.4.1
*/
public class FieldResolver extends SharkAnnotationResolverImpl {
private SetValue setValue;
public FieldResolver() {
setValue = new SetValue();
}
@Override
public void fieldResolver(T goalObject, ResultSet rs) {
AutoColumn autoColumn = null;
/* 检测目标对象是否包含@AutoColumn注解 */
if (goalObject.getClass().isAnnotationPresent(AutoColumn.class)) {
autoColumn = goalObject.getClass().getAnnotation(AutoColumn.class);
}
/* 迭代目标对象的所有字段 */
for (Field goalObjectField : goalObject.getClass().getDeclaredFields()) {
/* 检测目标对象的指定字段是否包含@Column注解 */
if (goalObjectField.isAnnotationPresent(Column.class)) {
/* 获取目标对象的@Column注解属性 */
Column goalObjectColumn = goalObjectField.getAnnotation(Column.class);
final String name = goalObjectColumn.name();
/* 如果找不到注解就从类名映射 */
if (null != name && 0 < name.length()) {
setValue.set(goalObjectField, goalObject, rs, name);
} else {
setValue.set(goalObjectField, goalObject, rs, goalObjectField.getName());
}
} else if (null != autoColumn && autoColumn.value()) {
setValue.set(goalObjectField, goalObject, rs, goalObjectField.getName());
}
}
}
}