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simplify to access database with java.

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package pers.zr.opensource.magic.dao.utils;

import java.lang.reflect.*;
import java.util.*;

/**
 * created by zhurong 2016/4/30
 */
public class ClassUtil {

    public static Type[] getGenericTypes(Class clazz) {

        Class myClass = clazz;

        if (!(clazz.getGenericSuperclass() instanceof ParameterizedType)) {
            myClass = clazz.getSuperclass();
        }

        Type superClass = myClass.getGenericSuperclass();
        ParameterizedType type = (ParameterizedType) superClass;
        return type.getActualTypeArguments();
    }

    public static Set getAllFields(Class entityClass) {
        //fields of current class
        Set fs = new HashSet();
        Collections.addAll(fs, entityClass.getFields());
        Collections.addAll(fs, entityClass.getDeclaredFields());

        // recursion, fields of super classes
        Class superClass = entityClass.getSuperclass();
        if (!superClass.equals(Object.class)) {
            fs.addAll(getAllFields(superClass));
        }

        return fs;
    }


    public static Set getAllMethods(Class entityClass) {
        //methods of current class
        Set ms = new HashSet();
        Collections.addAll(ms, entityClass.getMethods());
        Collections.addAll(ms, entityClass.getDeclaredMethods());

        //recursion, methods of super classes
        Class superClass = entityClass.getSuperclass();
        if (!superClass.equals(Object.class)) {
            ms.addAll(getAllMethods(superClass));
        }

        return ms;
    }

    public static boolean isBasicType(Class clazz) {
        return !Collection.class.isAssignableFrom(clazz) &&
                (clazz.equals(Integer.class) || clazz.equals(Integer.TYPE) ||
                 clazz.equals(Long.class) || clazz.equals(Long.TYPE) ||
                 clazz.equals(Boolean.class) || clazz.equals(Boolean.TYPE) ||
                 clazz.equals(Float.class) || clazz.equals(Float.TYPE) ||
                 clazz.equals(Double.class) || clazz.equals(Double.TYPE) ||
                 clazz.equals(Byte.class) || clazz.equals(Byte.TYPE) ||
                 clazz.equals(String.class) ||
                 Date.class.isAssignableFrom(clazz)
                );

    }



}