Android Field Get getAdditionalStaticField(Object obj, String key)

Description

get Additional Static Field

Declaration

public static Object getAdditionalStaticField(Object obj, String key) 

Method Source Code

//package com.java2s;

import java.util.HashMap;

import java.util.WeakHashMap;

public class Main {
    private static final WeakHashMap<Object, HashMap<String, Object>> additionalFields = new WeakHashMap<Object, HashMap<String, Object>>();

    public static Object getAdditionalStaticField(Object obj, String key) {
        return getAdditionalInstanceField(obj.getClass(), key);
    }/* w w  w. j av  a 2  s  .c om*/

    public static Object getAdditionalStaticField(Class<?> clazz, String key) {
        return getAdditionalInstanceField(clazz, key);
    }

    public static Object getAdditionalInstanceField(Object obj, String key) {
        if (obj == null)
            throw new NullPointerException("object must not be null");
        if (key == null)
            throw new NullPointerException("key must not be null");

        HashMap<String, Object> objectFields;
        synchronized (additionalFields) {
            objectFields = additionalFields.get(obj);
            if (objectFields == null)
                return null;
        }

        synchronized (objectFields) {
            return objectFields.get(key);
        }
    }
}

Related

1. getPrivateField(Object target, String fieldName)
2. getPrivateField(Object target, String fieldName, Class type)
3. getAllFields(List fields, Class type)
4. getSuperPrivateField(Object target, String fieldName)
5. getAdditionalInstanceField(Object obj, String key)
6. isBaseDateType(Field field)