Java Reflection Field Check getFieldSize(Class clazz)

Description

get Field Size

License

Open Source License

Declaration

public static int getFieldSize(Class clazz) 

Method Source Code

//package com.java2s;

import java.util.IdentityHashMap;
import java.util.Map;

public class Main {
    private static final Map primitiveSizes = new IdentityHashMap() {
        {//from ww w . j av  a2s  .  c  o  m
            put(boolean.class, new Integer(1));
            put(byte.class, new Integer(1));
            put(char.class, new Integer(2));
            put(short.class, new Integer(2));
            put(int.class, new Integer(4));
            put(float.class, new Integer(4));
            put(double.class, new Integer(8));
            put(long.class, new Integer(8));
        }
    };

    public static int getFieldSize(Class clazz) {
        Integer i = (Integer) primitiveSizes.get(clazz);
        return i != null ? i.intValue() : getPointerSize();
    }

    public static int getPointerSize() {
        return 4;
    }
}

Related

1. addFieldClass(String fieldName, Class clazz)
2. getAllFieldsNoCache(Class realClass, Class upperClass)
3. getFieldAttribute(Class entityClass, String fieldName)
4. getFields(Class klass)
5. isFieldAutoBindable(Class clazz)
6. isJavaClass(Field field)
7. putCachedSerializerForClass(Class instanceType, Class customFieldSerializer)