Java Reflection Field Value Set setFieldValueWithSetterMethod(Object target, Object value, Class clazz, Field field)

Description

set Field Value With Setter Method

License

Apache License

Declaration

static Object setFieldValueWithSetterMethod(Object target, Object value, Class<?> clazz, Field field) 

Method Source Code

//package com.java2s;
/*//from   www  .  ja  va  2 s . co m
 * 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
 *
 *      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.
 */

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {
    static Object setFieldValueWithSetterMethod(Object target, Object value, Class<?> clazz, Field field) {
        Method method = getSetterMethod(clazz, field);
        try {
            return method.invoke(target, value);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        } catch (InvocationTargetException e) {
            throw new RuntimeException(e);
        }
    }

    static Method getSetterMethod(Class<?> clazz, Field field) {
        String fieldName = field.getName();
        String methodName = "set" + fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);
        try {
            return getInheritMethod(clazz, methodName, new Class<?>[] { field.getType() });
        } catch (NoSuchMethodException e) {
            throw new RuntimeException(e);
        }
    }

    static Method getInheritMethod(Class<?> clazz, String methodName, Class<?>... parameterTypes)
            throws NoSuchMethodException {
        try {
            return clazz.getDeclaredMethod(methodName, parameterTypes);
        } catch (NoSuchMethodException e) {
            Class<?> superClass = clazz.getSuperclass();
            if (superClass != null && superClass != Object.class) {
                return getInheritMethod(superClass, methodName, parameterTypes);
            } else {
                throw e;
            }
        }
    }
}

Related

1. setFieldvalue(T instance, E value, Field field)
2. setFieldValue_internal(Object bean, Field field, Object value)
3. setFieldValueForObject(Object object, String fieldName, Object value)
4. setFieldValues(Object bean, Map valMap)
5. setFieldValueWithPath(Object object, String path, Object value)
6. setFieldValueX(Object target, String field, Object value)