001/*
002 *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
003 *  <p>
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *  <p>
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *  <p>
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package com.mybatisflex.core.update;
017
018
019import com.mybatisflex.core.util.StringUtil;
020import org.apache.ibatis.javassist.util.proxy.MethodHandler;
021
022import java.lang.reflect.Method;
023import java.util.LinkedHashMap;
024import java.util.Map;
025
026class ModifyAttrsRecordHandler implements MethodHandler {
027
028    //更新内容
029    private final Map<String, Object> updates = new LinkedHashMap<>();
030
031    public Map<String, Object> getUpdates() {
032        return updates;
033    }
034
035
036    @Override
037    public Object invoke(Object self, Method originalMethod, Method proxyMethod, Object[] args) throws Throwable {
038
039        String methodName = originalMethod.getName();
040        if (methodName.startsWith("set")
041            && methodName.length() > 3
042            && Character.isUpperCase(methodName.charAt(3))
043            && originalMethod.getParameterCount() == 1) {
044            String property = StringUtil.firstCharToLowerCase(originalMethod.getName().substring(3));
045            updates.put(property, args[0]);
046        }
047
048        return proxyMethod.invoke(self, args);
049    }
050
051
052}
053
054