程序包 infra.aop.framework

类 AopContext

java.lang.Object
infra.aop.framework.AopContext
public final class AopContext extends Object
Class containing static methods used to obtain information about the current AOP invocation.

The currentProxy() method is usable if the AOP framework is configured to expose the current proxy (not the default). It returns the AOP proxy in use. Target objects or advice can use this to make advised calls, in the same way as getEJBObject() can be used in EJBs. They can also use it to find advice configuration.

AOP framework does not expose proxies by default, as there is a performance cost in doing so.

The functionality in this class might be used by a target object that needed access to resources on the invocation. However, this approach should not be used when there is a reasonable alternative, as it makes application code dependent on usage under AOP and the AOP framework in particular.

从以下版本开始:
3.0
作者:
Rod Johnson, Juergen Hoeller, TODAY 2021/2/1 19:39

  • 字段详细资料

    • currentProxy

      private static final ThreadLocal<Object> currentProxy
      ThreadLocal holder for AOP proxy associated with this thread. Will contain null unless the "exposeProxy" property on the controlling proxy configuration has been set to "true".
      另请参阅:

  • 构造器详细资料

    • AopContext

      public AopContext()

  • 方法详细资料

    • currentProxy

      public static Object currentProxy()
      Try to return the current AOP proxy. This method is usable only if the calling method has been invoked via AOP, and the AOP framework has been set to expose proxies. Otherwise, this method will throw an IllegalStateException.
      返回:
      the current AOP proxy (never returns null)
      抛出:
      IllegalStateException - if the proxy cannot be found, because the method was invoked outside an AOP invocation context, or because the AOP framework has not been configured to expose the proxy

    • setCurrentProxy

      static Object setCurrentProxy(@Nullable Object proxy)
      Make the given proxy available via the currentProxy() method.

      Note that the caller should be careful to keep the old value as appropriate.

      参数:
      proxy - the proxy to expose (or null to reset it)
      返回:
      the old proxy, which may be null if none was bound
      另请参阅: