程序包 infra.aop.target

类 ThreadLocalTargetSource

java.lang.Object

infra.aop.target.AbstractBeanFactoryTargetSource

infra.aop.target.AbstractPrototypeTargetSource

infra.aop.target.ThreadLocalTargetSource

所有已实现的接口:

ThreadLocalTargetSourceStats, TargetClassAware, TargetSource, infra.beans.factory.Aware, infra.beans.factory.BeanFactoryAware, infra.beans.factory.DisposableBean, Serializable

public class ThreadLocalTargetSource
extends AbstractPrototypeTargetSource
implements ThreadLocalTargetSourceStats, infra.beans.factory.DisposableBean

Alternative to an object pool. This TargetSource uses a threading model in which every thread has its own copy of the target. There's no contention for targets. Target object creation is kept to a minimum on the running server.

Application code is written as to a normal pool; callers can't assume they will be dealing with the same instance in invocations in different threads. However, state can be relied on during the operations of a single thread: for example, if one caller makes repeated calls on the AOP proxy.

Cleanup of thread-bound objects is performed on BeanFactory destruction, calling their DisposableBean.destroy() method if available. Be aware that many thread-bound objects can be around until the application actually shuts down.

从以下版本开始:

3.0

作者:

Rod Johnson, Juergen Hoeller, Rob Harrop, TODAY 2021/2/1 20:41

另请参阅:

• ThreadLocalTargetSourceStats
• DisposableBean.destroy()
• 序列化表格

字段概要

字段

修饰符和类型	字段	说明
private int	hitCount
private int	invocationCount
private static final long	serialVersionUID
private final ThreadLocal<Object>	targetInThread	ThreadLocal holding the target associated with the current thread.
private final Set<Object>	targetSet	Set of managed targets, enabling us to keep track of the targets we've created.

从类继承的字段 infra.aop.target.AbstractBeanFactoryTargetSource

logger

构造器概要

构造器

构造器	说明
ThreadLocalTargetSource()

方法概要

修饰符和类型	方法	说明
void	destroy()	Dispose of targets if necessary; clear ThreadLocal.
int	getHitCount()	Return the number of hits that were satisfied by a thread-bound object.
int	getInvocationCount()	Return the number of client invocations.
int	getObjectCount()	Return the number of thread-bound objects created.
IntroductionAdvisor	getStatsMixin()	Return an introduction advisor mixin that allows the AOP proxy to be cast to ThreadLocalInvokerStats.
Object	getTarget()	Implementation of abstract getTarget() method.

从类继承的方法 infra.aop.target.AbstractPrototypeTargetSource

destroyPrototypeInstance, newPrototypeInstance, setBeanFactory, writeReplace

从类继承的方法 infra.aop.target.AbstractBeanFactoryTargetSource

copyFrom, equals, getBeanFactory, getTargetBeanName, getTargetClass, hashCode, isStatic, releaseTarget, setTargetBeanName, setTargetClass, toString

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

字段详细资料

serialVersionUID

private static final long serialVersionUID

另请参阅:

• 常量字段值

targetInThread

private final ThreadLocal<Object> targetInThread

ThreadLocal holding the target associated with the current thread. Unlike most ThreadLocals, which are static, this variable is meant to be per thread per instance of the ThreadLocalTargetSource class.

targetSet

private final Set<Object> targetSet

Set of managed targets, enabling us to keep track of the targets we've created.

invocationCount

private int invocationCount

hitCount

private int hitCount

构造器详细资料

ThreadLocalTargetSource

public ThreadLocalTargetSource()

方法详细资料

getTarget

public Object getTarget()

Implementation of abstract getTarget() method. We look for a target held in a ThreadLocal. If we don't find one, we create one and bind it to the thread. No synchronization is required.

指定者:

getTarget 在接口中 TargetSource

返回:

the target object which contains the join-point, or null if there is no actual target instance

destroy

public void destroy()

Dispose of targets if necessary; clear ThreadLocal.

指定者:

destroy 在接口中 infra.beans.factory.DisposableBean

另请参阅:

• AbstractPrototypeTargetSource.destroyPrototypeInstance(java.lang.Object)

getInvocationCount

public int getInvocationCount()

从接口复制的说明: ThreadLocalTargetSourceStats

Return the number of client invocations.

指定者:

getInvocationCount 在接口中 ThreadLocalTargetSourceStats

getHitCount

public int getHitCount()

从接口复制的说明: ThreadLocalTargetSourceStats

Return the number of hits that were satisfied by a thread-bound object.

指定者:

getHitCount 在接口中 ThreadLocalTargetSourceStats

getObjectCount

public int getObjectCount()

从接口复制的说明: ThreadLocalTargetSourceStats

Return the number of thread-bound objects created.

指定者:

getObjectCount 在接口中 ThreadLocalTargetSourceStats

getStatsMixin

public IntroductionAdvisor getStatsMixin()

Return an introduction advisor mixin that allows the AOP proxy to be cast to ThreadLocalInvokerStats.