Java Reflection Generic Type from Field getGenericFieldType(Object target, String fieldName)

Description

get Generic Field Type

License

Apache License

Declaration

public static Type getGenericFieldType(Object target, String fieldName) 

Method Source Code

//package com.java2s;
/*//from w  ww.  jav  a2  s  .c o m
 * Copyright 2009-2016 European Molecular Biology Laboratory
 *
 * 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.Type;

public class Main {
    public static Type getGenericFieldType(Object target, String fieldName) {
        try {
            return getField(target, fieldName).getGenericType();
        } catch (NoSuchFieldException e) {
            throw new RuntimeException(e);
        }
    }

    private static Field getField(Object target, String fieldName) throws NoSuchFieldException {
        Class<?> clazz = target.getClass();
        Field field = clazz.getDeclaredField(fieldName);
        field.setAccessible(true);
        return field;
    }
}

Related

1. getGenericClass(Field f, int n)
2. getGenericClasses(Field field)
3. getGenericElementType(Field field)
4. getGenericFieldClassType(Class clz, String propertyName)
5. getGenericFieldType(Field field, boolean isAllowNull)
6. getGenericFieldTypeFromPosition(Field field, int position)
7. getGenericlyTypeCount(Field field)
8. getGenericMultivalueType(final Field p)
9. getGenericMultivalueType(final Field p)