java.lang.Object
- org.springframework.context.expression.BeanExpressionContextAccessor

所有已实现的接口:
PropertyAccessor
```
public class BeanExpressionContextAccessor
extends Object
implements PropertyAccessor
```
EL property accessor that knows how to traverse the beans and contextual objects of a Spring BeanExpressionContext.
从以下版本开始:
3.0
作者:
Juergen Hoeller, Andy Clement

构造器概要
构造器
构造器说明
BeanExpressionContextAccessor()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`boolean`	`canRead(EvaluationContext context, Object target, String name)`	Called to determine if a resolver instance is able to access a specified property on a specified target object.
`boolean`	`canWrite(EvaluationContext context, Object target, String name)`	Called to determine if a resolver instance is able to write to a specified property on a specified target object.
`Class<?>[]`	`getSpecificTargetClasses()`	Return an array of classes for which this resolver should be called.
`TypedValue`	`read(EvaluationContext context, Object target, String name)`	Called to read a property from a specified target object.
`void`	`write(EvaluationContext context, Object target, String name, Object newValue)`	Called to write to a property on a specified target object.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - BeanExpressionContextAccessor
```
public BeanExpressionContextAccessor()
```
- 方法详细资料
  - canRead
```
public boolean canRead(EvaluationContext context,
                       Object target,
                       String name)
                throws AccessException
```
    从接口复制的说明: PropertyAccessor
    Called to determine if a resolver instance is able to access a specified property on a specified target object.
    指定者:
    canRead 在接口中 PropertyAccessor
    参数:
    context - the evaluation context in which the access is being attempted
    target - the target object upon which the property is being accessed
    name - the name of the property being accessed
    返回:
    true if this resolver is able to read the property
    抛出:
    AccessException - if there is any problem determining whether the property can be read
  - read
```
public TypedValue read(EvaluationContext context,
                       Object target,
                       String name)
                throws AccessException
```
    从接口复制的说明: PropertyAccessor
    Called to read a property from a specified target object. Should only succeed if PropertyAccessor.canRead(org.springframework.expression.EvaluationContext, java.lang.Object, java.lang.String) also returns true.
    指定者:
    read 在接口中 PropertyAccessor
    参数:
    context - the evaluation context in which the access is being attempted
    target - the target object upon which the property is being accessed
    name - the name of the property being accessed
    返回:
    a TypedValue object wrapping the property value read and a type descriptor for it
    抛出:
    AccessException - if there is any problem accessing the property value
  - canWrite
```
public boolean canWrite(EvaluationContext context,
                        Object target,
                        String name)
                 throws AccessException
```
    从接口复制的说明: PropertyAccessor
    Called to determine if a resolver instance is able to write to a specified property on a specified target object.
    指定者:
    canWrite 在接口中 PropertyAccessor
    参数:
    context - the evaluation context in which the access is being attempted
    target - the target object upon which the property is being accessed
    name - the name of the property being accessed
    返回:
    true if this resolver is able to write to the property
    抛出:
    AccessException - if there is any problem determining whether the property can be written to
  - write
```
public void write(EvaluationContext context,
                  Object target,
                  String name,
                  Object newValue)
           throws AccessException
```
    从接口复制的说明: PropertyAccessor
    Called to write to a property on a specified target object. Should only succeed if PropertyAccessor.canWrite(org.springframework.expression.EvaluationContext, java.lang.Object, java.lang.String) also returns true.
    指定者:
    write 在接口中 PropertyAccessor
    参数:
    context - the evaluation context in which the access is being attempted
    target - the target object upon which the property is being accessed
    name - the name of the property being accessed
    newValue - the new value for the property
    抛出:
    AccessException - if there is any problem writing to the property value
  - getSpecificTargetClasses
```
public Class<?>[] getSpecificTargetClasses()
```
    从接口复制的说明: PropertyAccessor
    Return an array of classes for which this resolver should be called.
    >Returning null indicates this is a general resolver that can be called in an attempt to resolve a property on any type.
    指定者:
    getSpecificTargetClasses 在接口中 PropertyAccessor
    返回:
    an array of classes that this resolver is suitable for (or null if a general resolver)

类 BeanExpressionContextAccessor

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

BeanExpressionContextAccessor

方法详细资料

canRead

read

canWrite

write

getSpecificTargetClasses