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25 
26 package com.sun.jdi.request;
27 
28 import com.sun.jdi.*;
29 
30 /**
31  * Request for notification when a class is unloaded in the target VM.
32  * When an enabled ClassUnloadRequest is satisfied, a
33  * {@link com.sun.jdi.event.EventSet event set} containing an
34  * {@link com.sun.jdi.event.ClassUnloadEvent ClassUnloadEvent} will
35  * be placed on the {@link com.sun.jdi.event.EventQueue EventQueue}.
36  * The collection of existing ClassUnloadRequests is
37  * managed by the {@link EventRequestManager}
38  * <p>
39  * Refer to the Java Virtual Machine Specification for more information
40  * on class unloading.
41  *
42  * @see com.sun.jdi.event.ClassUnloadEvent
43  * @see com.sun.jdi.event.EventQueue
44  * @see EventRequestManager
45  *
46  * @author Robert Field
47  * @since  1.3
48  */
49 @jdk.Exported
50 public interface ClassUnloadRequest extends EventRequest {
51 
52     /**
53      * Restricts the events generated by this request to the
54      * unloading of reference types whose name matches a restricted
55      * regular expression. Regular expressions are limited to exact
56      * matches and patterns that begin with '*' or end with '*'; for
57      * example, "*.Foo" or "java.*".
58      * @param classPattern the pattern String to filter for.
59      * @throws InvalidRequestStateException if this request is currently
60      * enabled or has been deleted.
61      * Filters may be added only to disabled requests.
62      */
addClassFilter(String classPattern)63     void addClassFilter(String classPattern);
64 
65     /**
66      * Restricts the events generated by this request to the
67      * unloading of reference types whose name does <b>not</b> match
68      * a restricted regular expression. Regular expressions are limited
69      * to exact matches and patterns that begin with '*' or end with '*';
70      * for example, "*.Foo" or "java.*".
71      * @param classPattern the pattern String to filter against.
72      * @throws InvalidRequestStateException if this request is currently
73      * enabled or has been deleted.
74      * Filters may be added only to disabled requests.
75      */
addClassExclusionFilter(String classPattern)76     void addClassExclusionFilter(String classPattern);
77 }
78