AbstractExpressionPointcut (Spring Framework 5.2.12.RELEASE API)

java.lang.Object
- org.springframework.aop.support.AbstractExpressionPointcut

所有已实现的接口:
Serializable, Pointcut, ExpressionPointcut
直接已知子类:
AspectJExpressionPointcut
```
public abstract class AbstractExpressionPointcut
extends Object
implements ExpressionPointcut, Serializable
```
Abstract superclass for expression pointcuts, offering location and expression properties.
从以下版本开始:
2.0
作者:
Rod Johnson, Rob Harrop
另请参阅:
setLocation(java.lang.String), setExpression(java.lang.String), 序列化表格

字段概要
- 从接口继承的字段 org.springframework.aop.Pointcut
  TRUE

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

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
`String`	`getExpression()`	Return this pointcut's expression.
`String`	`getLocation()`	Return location information about the pointcut expression if available.
`protected void`	`onSetExpression(String expression)`	Called when a new pointcut expression is set.
`void`	`setExpression(String expression)`
`void`	`setLocation(String location)`	Set the location for debugging.

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

从接口继承的方法 org.springframework.aop.Pointcut
getClassFilter, getMethodMatcher

- 构造器详细资料
  - AbstractExpressionPointcut
```
public AbstractExpressionPointcut()
```
- 方法详细资料
  - setLocation
```
public void setLocation(@Nullable
                        String location)
```
    Set the location for debugging.
  - getLocation
```
@Nullable
public String getLocation()
```
    Return location information about the pointcut expression if available. This is useful in debugging.
    返回:
    location information as a human-readable String, or null if none is available
  - setExpression
```
public void setExpression(@Nullable
                          String expression)
```
  - onSetExpression
```
protected void onSetExpression(@Nullable
                               String expression)
                        throws IllegalArgumentException
```
    Called when a new pointcut expression is set. The expression should be parsed at this point if possible.
    This implementation is empty.
    参数:
    expression - the expression to set
    抛出:
    IllegalArgumentException - if the expression is invalid
    另请参阅:
    setExpression(java.lang.String)
  - getExpression
```
@Nullable
public String getExpression()
```
    Return this pointcut's expression.
    指定者:
    getExpression 在接口中 ExpressionPointcut