Package cn.xuanyuanli.core.util.beancopy

Class JavassistBeanCopierFactory

java.lang.Object

cn.xuanyuanli.core.util.beancopy.JavassistBeanCopierFactory

All Implemented Interfaces:

BeanCopierFactory

public class JavassistBeanCopierFactory
extends Object
implements BeanCopierFactory

Author:

John Li

Field Summary

Fields

Modifier and Type	Field	Description
private static final javassist.ClassPool	CLASS_POOL
private static final AtomicInteger	INSTANCE_COUNT
private static final org.slf4j.Logger	logger

Constructor Summary

Constructors

Constructor	Description
JavassistBeanCopierFactory()

Method Summary

Modifier and Type	Method	Description
BeanCopier	createBeanCopier(Class<?> sourceClass, Class<?> targetClass, List<BeanCopyPropertyItem> items, boolean cover)	创建bean复印机
String	getCopyBeanMethodBody(Class<?> sourceClass, Class<?> targetClass, List<BeanCopyPropertyItem> items, boolean cover)	获得构造的方法内容

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final org.slf4j.Logger logger

INSTANCE_COUNT

private static final AtomicInteger INSTANCE_COUNT

CLASS_POOL

private static final javassist.ClassPool CLASS_POOL

Constructor Details

JavassistBeanCopierFactory

public JavassistBeanCopierFactory()

Method Details

createBeanCopier

public BeanCopier createBeanCopier(Class<?> sourceClass,
 Class<?> targetClass,
 List<BeanCopyPropertyItem> items,
 boolean cover)

Description copied from interface: BeanCopierFactory

创建bean复印机

Specified by:

createBeanCopier in interface BeanCopierFactory

Parameters:

sourceClass - 源类

targetClass - 目标类

items - 项目

cover - 覆盖

Returns:

BeanCopier

getCopyBeanMethodBody

public String getCopyBeanMethodBody(Class<?> sourceClass,
 Class<?> targetClass,
 List<BeanCopyPropertyItem> items,
 boolean cover)

获得构造的方法内容

javaassist使用

• 基本类型的处理
• 对于获取值来说，要先转换为包装类，方便后续处理。如果get方法返回值类型是primitive，用$w来转换为包装类
• 对于写入值来说：如果set方法的参数类型是primitive，则使用BeanCopier的getPrimitive系列方法获取primitive值；如果是包装类，则使用Beans.getExpectTypeValue()获得对应类型的值
• 实参获取：使用$1、$2、$3来获取

Parameters:

sourceClass - 源类

targetClass - 目标类

items - 项

cover - 覆盖

Returns:

String