Interface ModificationWatchpointRequest

All Superinterfaces:

EventRequest, Mirror, WatchpointRequest

public interface ModificationWatchpointRequest
extends WatchpointRequest

Request for notification when a field is set. This event will be triggered when a value is assigned to the specified field with a Java programming language statement (assignment, increment, etc) or by a Java Native Interface (JNI) set function (Set<Type>Field, SetStatic<Type>Field). Setting a field to a value which is the same as the previous value still triggers this event. Modification by JDI does not trigger this event. When an enabled ModificationWatchpointRequest is satisfied, an event set containing a ModificationWatchpointEvent will be placed on the EventQueue. The collection of existing watchpoints is managed by the EventRequestManager.

Since:

1.3

See Also:

• ModificationWatchpointEvent
• AccessWatchpointRequest
• EventQueue
• EventRequestManager

Field Summary

Fields declared in interface EventRequest

SUSPEND_ALL, SUSPEND_EVENT_THREAD, SUSPEND_NONE

Modifier and Type	Field	Description
static final int	SUSPEND_ALL	Suspend all threads when the event occurs
static final int	SUSPEND_EVENT_THREAD	Suspend only the thread which generated the event when the event occurs
static final int	SUSPEND_NONE	Suspend no threads when the event occurs

Method Summary

Methods declared in interface EventRequest

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

Modifier and Type	Method	Description
void	addCountFilter(int count)	Limit the requested event to be reported at most once after a given number of occurrences.
void	disable()	Same as setEnabled(false).
void	enable()	Same as setEnabled(true).
Object	getProperty(Object key)	Returns the value of the property with the specified key.
boolean	isEnabled()	Determines if this event request is currently enabled.
void	putProperty(Object key, Object value)	Add an arbitrary key/value "property" to this request.
void	setEnabled(boolean val)	Enables or disables this event request.
void	setSuspendPolicy(int policy)	Determines the threads to suspend when the requested event occurs in the target VM.
int	suspendPolicy()	Returns a value which describes the threads to suspend when the requested event occurs in the target VM.

Methods declared in interface Mirror

toString, virtualMachine

Modifier and Type	Method	Description
String	toString()	Returns a String describing this mirror
VirtualMachine	virtualMachine()	Gets the VirtualMachine to which this Mirror belongs.

Methods declared in interface WatchpointRequest

addClassExclusionFilter, addClassFilter, addClassFilter, addInstanceFilter, addThreadFilter, field

Modifier and Type	Method	Description
void	addClassExclusionFilter(String classPattern)	Restricts the events generated by this request to those whose location is in a class whose name does not match this restricted regular expression.
void	addClassFilter(ReferenceType refType)	Restricts the events generated by this request to those whose location is in the given reference type or any of its subtypes.
void	addClassFilter(String classPattern)	Restricts the events generated by this request to those whose location is in a class whose name matches a restricted regular expression.
void	addInstanceFilter(ObjectReference instance)	Restricts the events generated by this request to those in which the currently executing instance ("this") is the object specified.
void	addThreadFilter(ThreadReference thread)	Restricts the events generated by this request to those in the given thread.
Field	field()	Gets the Field being watched by this WatchpointRequest.