Package org.apache.dubbo.common.utils

Class PojoUtils

java.lang.Object

org.apache.dubbo.common.utils.PojoUtils

public class PojoUtils
extends Object

PojoUtils. Travel object deeply, and convert complex type to simple type.

Simple type below will be remained:

• Primitive Type, also include String, Number(Integer, Long), Date
• Array of Primitive Type
• Collection, eg: List, Map, Set etc.

Other type will be covert to a map which contains the attributes and value pair of object.

TODO: exact PojoUtils to scope bean

Constructor Summary

Constructors

Constructor	Description
PojoUtils()

Method Summary

Modifier and Type	Method	Description
static Object	generalize(Object pojo)
static Object[]	generalize(Object[] objs)
static boolean	isPojo(Class<?> cls)
static <T> T	mapToPojo(Map<String,Object> map, Class<T> cls)	convert map to a specific class instance
static Object[]	realize(Object[] objs, Class<?>[] types)
static Object[]	realize(Object[] objs, Class<?>[] types, Type[] gtypes)
static Object	realize(Object pojo, Class<?> type)
static Object	realize(Object pojo, Class<?> type, Type genericType)
static <T> void	updatePropertyIfAbsent(Supplier<T> getterMethod, Consumer<T> setterMethod, T newValue)	Update the property if absent

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PojoUtils

public PojoUtils()

Method Details

generalize

public static Object[] generalize(Object[] objs)

realize

public static Object[] realize(Object[] objs,
 Class<?>[] types)

realize

public static Object[] realize(Object[] objs,
 Class<?>[] types,
 Type[] gtypes)

generalize

public static Object generalize(Object pojo)

realize

public static Object realize(Object pojo,
 Class<?> type)

realize

public static Object realize(Object pojo,
 Class<?> type,
 Type genericType)

isPojo

public static boolean isPojo(Class<?> cls)

updatePropertyIfAbsent

public static <T> void updatePropertyIfAbsent(Supplier<T> getterMethod,
 Consumer<T> setterMethod,
 T newValue)

Update the property if absent

Type Parameters:

T - the value type

Parameters:

getterMethod - the getter method

setterMethod - the setter method

newValue - the new value

Since:

2.7.8

mapToPojo

public static <T> T mapToPojo(Map<String,Object> map,
 Class<T> cls)
                       throws ReflectiveOperationException

convert map to a specific class instance

Type Parameters:

T - the type of cls

Parameters:

map - map wait for convert

cls - the specified class

Returns:

class instance declare in param cls

Throws:

ReflectiveOperationException - if the instance creation is failed

Since:

2.7.10