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## org.springframework.aop.interceptor
Class DebugInterceptor

    java.lang.Object
      org.springframework.aop.interceptor.AbstractTraceInterceptor
          org.springframework.aop.interceptor.SimpleTraceInterceptor
              org.springframework.aop.interceptor.DebugInterceptor

All Implemented Interfaces:
  Serializable, Advice, Interceptor, MethodInterceptor

    public class DebugInterceptor

extends SimpleTraceInterceptor

AOP Alliance `MethodInterceptor` that can be introduced in a chain to display verbose information about intercepted invocations to the logger.

Logs full invocation details on method entry and method exit, including invocation arguments and invocation count. This is only intended for debugging purposes; use `SimpleTraceInterceptor` or `CustomizableTraceInterceptor` for pure tracing purposes.

Author:
  Rod Johnson, Juergen Hoeller
See Also:
  `SimpleTraceInterceptor`, `CustomizableTraceInterceptor`, Serialized Form

Field Summary

Fields inherited from class org.springframework.aop.interceptor.AbstractTraceInterceptor
`defaultLogger`

Constructor Summary
`DebugInterceptor()` Create a new DebugInterceptor with a static logger.
`DebugInterceptor(boolean useDynamicLogger)` Create a new DebugInterceptor with dynamic or static logger, according to the given flag.

Method Summary
`long` | `getCount()` Return the number of times this interceptor has been invoked.
`protected String` | `getInvocationDescription(MethodInvocation invocation)` Return a description for the given method invocation.
`Object` | `invoke(MethodInvocation invocation)` Determines whether or not logging is enabled for the particular `MethodInvocation`.
`void` | `resetCount()` Reset the invocation count to zero.

Methods inherited from class org.springframework.aop.interceptor.SimpleTraceInterceptor
`invokeUnderTrace`

Methods inherited from class org.springframework.aop.interceptor.AbstractTraceInterceptor
`getClassForLogging, getLoggerForInvocation, isInterceptorEnabled, isLogEnabled, setHideProxyClassNames, setLoggerName, setUseDynamicLogger`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DebugInterceptor

    public DebugInterceptor()

  Create a new DebugInterceptor with a static logger.

### DebugInterceptor

    public DebugInterceptor(boolean useDynamicLogger)

  Create a new DebugInterceptor with dynamic or static logger, according to the given flag.

  Parameters:
    `useDynamicLogger` - whether to use a dynamic logger or a static logger
  See Also:
    `AbstractTraceInterceptor.setUseDynamicLogger(boolean)`

Method Detail

### invoke

    public Object invoke(MethodInvocation invocation)
                  throws Throwable

  Description copied from class: `AbstractTraceInterceptor`
  Determines whether or not logging is enabled for the particular `MethodInvocation`. If not, the method invocation proceeds as normal, otherwise the method invocation is passed to the `invokeUnderTrace` method for handling.

  Specified by:
    `invoke` in interface `MethodInterceptor`
  Overrides:
    `invoke` in class `AbstractTraceInterceptor`
  Throws:
    `Throwable`
  See Also:
    `AbstractTraceInterceptor.invokeUnderTrace(org.aopalliance.intercept.MethodInvocation, org.apache.commons.logging.Log)`

### getInvocationDescription

    protected String getInvocationDescription(MethodInvocation invocation)

  Description copied from class: `SimpleTraceInterceptor`
  Return a description for the given method invocation.

  Overrides:
    `getInvocationDescription` in class `SimpleTraceInterceptor`
  Parameters:
    `invocation` - the invocation to describe
  Returns:
    the description

### getCount

    public long getCount()

  Return the number of times this interceptor has been invoked.

### resetCount

    public void resetCount()

  Reset the invocation count to zero.

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