ClassUnloadRequest (Java Debug Interface )
Keywords: com.sun.jdi.request.ClassUnloadRequest interface
Date: 2015-05-24

com.sun.jdi.request

## Interface ClassUnloadRequest

- All Superinterfaces:
    EventRequest, Mirror

      @Exported
      public interface ClassUnloadRequest
      extends EventRequest

  Request for notification when a class is unloaded in the target VM. When an enabled ClassUnloadRequest is satisfied, a `event set` containing an `ClassUnloadEvent` will be placed on the `EventQueue`. The collection of existing ClassUnloadRequests is managed by the `EventRequestManager`

  Refer to the Java Virtual Machine Specification for more information on class unloading.

  Since:
    1.3
  See Also:
    `ClassUnloadEvent`, `EventQueue`, `EventRequestManager`

- - ### Field Summary

    - ### Fields inherited from interface com.sun.jdi.request.EventRequest

      `SUSPEND_ALL, SUSPEND_EVENT_THREAD, SUSPEND_NONE`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addClassExclusionFilter(String classPattern)` Restricts the events generated by this request to the unloading of reference types whose name does not match a restricted regular expression.
    `void` | `addClassFilter(String classPattern)` Restricts the events generated by this request to the unloading of reference types whose name matches a restricted regular expression.

    - ### Methods inherited from interface com.sun.jdi.request.EventRequest

      `addCountFilter, disable, enable, getProperty, isEnabled, putProperty, setEnabled, setSuspendPolicy, suspendPolicy`

    - ### Methods inherited from interface com.sun.jdi.Mirror

      `toString, virtualMachine`

- - ### Method Detail

    - #### addClassFilter

          void addClassFilter(String classPattern)

      Restricts the events generated by this request to the unloading of reference types whose name matches a restricted regular expression. Regular expressions are limited to exact matches and patterns that begin with '*' or end with '*'; for example, "*.Foo" or "java.*".
      Parameters:
        `classPattern` - the pattern String to filter for.
      Throws:
        `InvalidRequestStateException` - if this request is currently enabled or has been deleted. Filters may be added only to disabled requests.

    - #### addClassExclusionFilter

          void addClassExclusionFilter(String classPattern)

      Restricts the events generated by this request to the unloading of reference types whose name does not match a restricted regular expression. Regular expressions are limited to exact matches and patterns that begin with '*' or end with '*'; for example, "*.Foo" or "java.*".
      Parameters:
        `classPattern` - the pattern String to filter against.
      Throws:
        `InvalidRequestStateException` - if this request is currently enabled or has been deleted. Filters may be added only to disabled requests.

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