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package com.sun.jdi.event;

import com.sun.jdi.ReferenceType;
import com.sun.jdi.ThreadReference;
import com.sun.jdi.VirtualMachine;
import com.sun.jdi.request.EventRequest;


Notification of a class prepare in the target VM. See the JVM
specification for a definition of class preparation. Class prepare
events are not generated for primitive classes (for example,
java.lang.Integer.TYPE).

Author:Robert Field
See Also:
Since: 1.3
/**
 * Notification of a class prepare in the target VM. See the JVM
 * specification for a definition of class preparation. Class prepare
 * events are not generated for primitive classes (for example,
 * java.lang.Integer.TYPE).
 *
 * @see EventQueue
 * @see VirtualMachine
 *
 * @author Robert Field
 * @since  1.3
 */
public interface ClassPrepareEvent extends Event {

    
Returns the thread in which this event has occurred.

 In rare cases, this event may occur in a debugger system thread within the target VM. Debugger threads take precautions to prevent these events, but they cannot be avoided under some conditions, especially for some subclasses of Error. If the event was generated by a debugger system thread, the value returned by this method is null, and if the requested suspend policy for the event was EventRequest.SUSPEND_EVENT_THREAD, all threads will be suspended instead, and the EventSet.suspendPolicy will reflect this change. 

Note that the discussion above does not apply to system threads
created by the target VM during its normal (non-debug) operation.

Returns:a ThreadReference which mirrors the event's thread in the target VM, or null in the rare cases described above.
/**
     * Returns the thread in which this event has occurred.
     * <p>
     * In rare cases, this event may occur in a debugger system
     * thread within the target VM. Debugger threads take precautions
     * to prevent these events, but they cannot be avoided under some
     * conditions, especially for some subclasses of
     * {@link java.lang.Error}.
     * If the event was generated by a debugger system thread, the
     * value returned by this method is null, and if the requested
     * suspend policy for the event was
     * {@link EventRequest#SUSPEND_EVENT_THREAD},
     * all threads will be suspended instead, and the
     * {@link EventSet#suspendPolicy} will reflect this change.
     * <p>
     * Note that the discussion above does not apply to system threads
     * created by the target VM during its normal (non-debug) operation.
     *
     * @return a {@link ThreadReference} which mirrors the event's thread in
     * the target VM, or null in the rare cases described above.
     */
    public ThreadReference thread();

    
Returns the reference type for which this event was generated.

Returns:a ReferenceType which mirrors the class, interface, or array which has been linked.
/**
     * Returns the reference type for which this event was generated.
     *
     * @return a {@link ReferenceType} which mirrors the class, interface, or
     * array which has been linked.
     */
    public ReferenceType referenceType();
}