Package org.miaixz.bus.core.bean.path

Class BeanPath

java.lang.Object

org.miaixz.bus.core.bean.path.BeanPath

All Implemented Interfaces:

Iterator<BeanPath>

public class BeanPath
extends Object
implements Iterator<BeanPath>

Bean路径表达式，用于获取多层嵌套Bean中的字段值或Bean对象 根据给定的表达式，查找Bean中对应的属性值对象。 表达式分为两种：

1. .表达式，可以获取Bean对象中的属性（字段）值或者Map中key对应的值
2. []表达式，可以获取集合等对象中对应index的值

Since:

Java 17+

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor	Description
BeanPath(String expression)	构造

Method Summary

Modifier and Type	Method	Description
String	getChild()	获取子表达式
Node	getNode()	获取节点
Object	getValue(Object bean)	获取路径对应的值
boolean	hasNext()
BeanPath	next()
static BeanPath	of(String expression)	创建Bean路径
Object	setValue(Object bean, Object value)	设置路径对应的值，如果路径节点为空，自动创建之
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Details

BeanPath

public BeanPath(String expression)

构造

Parameters:

expression - 表达式

Method Details

of

public static BeanPath of(String expression)

创建Bean路径

Parameters:

expression - 表达式

Returns:

BeanPath

getNode

public Node getNode()

获取节点

Returns:

节点

getChild

public String getChild()

获取子表达式

Returns:

子表达式

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<BeanPath>

next

public BeanPath next()

Specified by:

next in interface Iterator<BeanPath>

getValue

public Object getValue(Object bean)

获取路径对应的值

Parameters:

bean - Bean对象

Returns:

路径对应的值

setValue

public Object setValue(Object bean,
 Object value)

设置路径对应的值，如果路径节点为空，自动创建之

Parameters:

bean - Bean对象

value - 设置的值

Returns:

beans。如果在原Bean对象基础上设置值，返回原Bean，否则返回新的Bean

toString

public String toString()

Overrides:

toString in class Object