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## com.sun.jdi.request
Interface ClassPrepareRequest

All Superinterfaces:
  EventRequest, Mirror

    public interface ClassPrepareRequest

extends EventRequest

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

Class preparation is defined in the Java Virtual Machine Specification.

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

Field Summary

Fields inherited from interface com.sun.jdi.request.EventRequest
`SUSPEND_ALL, SUSPEND_EVENT_THREAD, SUSPEND_NONE`

Method Summary
`void` | `addClassExclusionFilter(String classPattern)` Restricts the events generated by this request to the preparation of reference types whose name does not match this restricted regular expression.
`void` | `addClassFilter(ReferenceType refType)` Restricts the events generated by this request to be the preparation of the given reference type and any subtypes.
`void` | `addClassFilter(String classPattern)` Restricts the events generated by this request to the preparation of reference types whose name matches this 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(ReferenceType refType)

  Restricts the events generated by this request to be the preparation of the given reference type and any subtypes. An event will be generated for any prepared reference type that can be safely cast to the given reference type.

  Parameters:
    `refType` - the reference type to filter on.
  Throws:
    `InvalidRequestStateException` - if this request is currently enabled or has been deleted. Filters may be added only to disabled requests.

### addClassFilter

    void addClassFilter(String classPattern)

  Restricts the events generated by this request to the preparation of reference types whose name matches this 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 preparation of reference types whose name does not match this 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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