java.lang.Object
- org.springframework.aop.target.dynamic.AbstractRefreshableTargetSource

所有已实现的接口:
Refreshable, TargetClassAware, TargetSource
直接已知子类:
BeanFactoryRefreshableTargetSource
```
public abstract class AbstractRefreshableTargetSource
extends Object
implements TargetSource, Refreshable
```
Abstract TargetSource implementation that wraps a refreshable target object. Subclasses can determine whether a refresh is required, and need to provide fresh target objects.
Implements the Refreshable interface in order to allow for explicit control over the refresh status.
从以下版本开始:
2.0
作者:
Rod Johnson, Rob Harrop, Juergen Hoeller
另请参阅:
requiresRefresh(), freshTarget()

字段概要
字段
修饰符和类型字段说明
protected Log logger
Logger available to subclasses.
protected Object targetObject

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

方法概要

所有方法实例方法抽象方法具体方法
修饰符和类型	方法	说明
`protected abstract Object`	`freshTarget()`	Obtain a fresh target object.
`long`	`getLastRefreshTime()`	Return the last time an actual refresh happened (as timestamp).
`long`	`getRefreshCount()`	Return the number of actual refreshes since startup.
`Object`	`getTarget()`	Return a target instance.
`Class<?>`	`getTargetClass()`	Return the type of targets returned by this `TargetSource`.
`boolean`	`isStatic()`	Not static.
`void`	`refresh()`	Refresh the underlying target object.
`void`	`releaseTarget(Object object)`	No need to release target.
`protected boolean`	`requiresRefresh()`	Determine whether a refresh is required.
`void`	`setRefreshCheckDelay(long refreshCheckDelay)`	Set the delay between refresh checks, in milliseconds.

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

- 字段详细资料
  - logger
```
protected final Log logger
```
    Logger available to subclasses.
  - targetObject
```
@Nullable
protected Object targetObject
```
- 构造器详细资料
  - AbstractRefreshableTargetSource
```
public AbstractRefreshableTargetSource()
```
- 方法详细资料
  - setRefreshCheckDelay
```
public void setRefreshCheckDelay(long refreshCheckDelay)
```
    Set the delay between refresh checks, in milliseconds. Default is -1, indicating no refresh checks at all.
    Note that an actual refresh will only happen when requiresRefresh() returns true.
  - getTargetClass
```
public Class<?> getTargetClass()
```
    从接口复制的说明: TargetSource
    Return the type of targets returned by this TargetSource.
    Can return null, although certain usages of a TargetSource might just work with a predetermined target class.
    指定者:
    getTargetClass 在接口中 TargetClassAware
    指定者:
    getTargetClass 在接口中 TargetSource
    返回:
    the type of targets returned by this TargetSource
  - isStatic
```
public boolean isStatic()
```
    Not static.
    指定者:
    isStatic 在接口中 TargetSource
    返回:
    true if the target is immutable
    另请参阅:
    TargetSource.getTarget()
  - getTarget
```
@Nullable
public final Object getTarget()
```
    从接口复制的说明: TargetSource
    Return a target instance. Invoked immediately before the AOP framework calls the "target" of an AOP method invocation.
    指定者:
    getTarget 在接口中 TargetSource
    返回:
    the target object which contains the joinpoint, or null if there is no actual target instance
  - releaseTarget
```
public void releaseTarget(Object object)
```
    No need to release target.
    指定者:
    releaseTarget 在接口中 TargetSource
    参数:
    object - object obtained from a call to TargetSource.getTarget()
  - refresh
```
public final void refresh()
```
    从接口复制的说明: RefreshablegetRefreshCount()
    从接口复制的说明: Refreshable
    Return the number of actual refreshes since startup.
    指定者:
    getRefreshCount 在接口中 Refreshable
  - getLastRefreshTime
```
public long getLastRefreshTime()
```
    从接口复制的说明: Refreshable
    Return the last time an actual refresh happened (as timestamp).
    指定者:
    getLastRefreshTime 在接口中 Refreshable
  - requiresRefresh
```
protected boolean requiresRefresh()
```
    Determine whether a refresh is required. Invoked for each refresh check, after the refresh check delay has elapsed.
    The default implementation always returns true, triggering a refresh every time the delay has elapsed. To be overridden by subclasses with an appropriate check of the underlying target resource.
    返回:
    whether a refresh is required
  - freshTarget
```
protected abstract Object freshTarget()
```
    Obtain a fresh target object.
    Only invoked if a refresh check has found that a refresh is required (that is, requiresRefresh() has returned true).
    返回:
    the fresh target object

修饰符和类型	字段	说明
`protected Log`	`logger`	Logger available to subclasses.
`protected Object`	`targetObject`

类 AbstractRefreshableTargetSource

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

logger

targetObject

构造器详细资料

AbstractRefreshableTargetSource

方法详细资料

setRefreshCheckDelay

getTargetClass

isStatic

getTarget

releaseTarget

refresh

getLastRefreshTime

requiresRefresh

freshTarget