org.eclipse.emf.mwe.internal.core.debug.processing.handlers
Class BreakpointRuntimeHandler

java.lang.Object
  org.eclipse.emf.mwe.internal.core.debug.processing.handlers.BreakpointRuntimeHandler

All Implemented Interfaces:

java.lang.Runnable, ProcessHandler, RuntimeHandler

public class BreakpointRuntimeHandler
extends java.lang.Object
implements RuntimeHandler, ProcessHandler, java.lang.Runnable

This class handles the communication of Breakpoints on the runtime side. It listens in an extra thread for set and removal of breakpoints. The DebugMonitor uses this class to suspend the runtime process at breakpoints.

Field Summary

protected Connection	connection
protected DebugMonitor	monitor
static int	REMOVE
static int	SET

Fields inherited from interface org.eclipse.emf.mwe.internal.core.debug.processing.ProcessHandler

INTERRUPT, POP, PUSH, SHALL_HANDLE, SUSPEND

Constructor Summary

BreakpointRuntimeHandler()

Method Summary

void	init(DebugMonitor monitor, Connection connection) initiate the instantiated handler.
boolean	isLastCall() if true, the handler has the last call and will be processed at the last handler
void	run()
boolean	shallHandle(boolean lastState, java.lang.Object element, int flag) no contribution here
boolean	shallInterrupt(boolean lastState) no contribution here
boolean	shallSuspend(boolean lastState, java.lang.Object element, int flag) returns true if a breakpoint is rgeistered for that element
void	startListener() start the listening process in an extra thread, if required

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SET

public static final int SET

See Also:

Constant Field Values

REMOVE

public static final int REMOVE

See Also:

Constant Field Values

connection

protected Connection connection

monitor

protected DebugMonitor monitor

Constructor Detail

BreakpointRuntimeHandler

public BreakpointRuntimeHandler()

Method Detail

init

public void init(DebugMonitor monitor,
                 Connection connection)

Description copied from interface: RuntimeHandler

initiate the instantiated handler. It gets the DebugMonitor and Connection instances that may be needed for the handler to do it's work
the handler may be registered at the DebugMonitor dependent on the type of handler.

Specified by:

init in interface RuntimeHandler

Parameters:

monitor - the DebugMonitor

connection - the connection to the debugger framework

See Also:

RuntimeHandler.init(org.eclipse.emf.mwe.internal.core.debug.processing.DebugMonitor, org.eclipse.emf.mwe.internal.core.debug.communication.Connection)

startListener

public void startListener()

Description copied from interface: RuntimeHandler

start the listening process in an extra thread, if required

Specified by:

startListener in interface RuntimeHandler

See Also:

RuntimeHandler.startListener()

run

public void run()

Specified by:

run in interface java.lang.Runnable

See Also:

Runnable.run()

isLastCall

public boolean isLastCall()

Description copied from interface: ProcessHandler

if true, the handler has the last call and will be processed at the last handler

Specified by:

isLastCall in interface ProcessHandler

Returns:

whether or not

shallSuspend

public boolean shallSuspend(boolean lastState,
                            java.lang.Object element,
                            int flag)

returns true if a breakpoint is rgeistered for that element

Specified by:

shallSuspend in interface ProcessHandler

Parameters:

lastState - the consolidated decisions of previously asked listeners

element - the element that is questioned

flag - one of the values IEventHandler.NORMAL_FRAME or IEventHandler.END_FRAME

Returns:

if the process shall suspend based on the last state and the evaluation of the current element

See Also:

ProcessHandler.shallSuspend(boolean, java.lang.Object, int)

shallHandle

public boolean shallHandle(boolean lastState,
                           java.lang.Object element,
                           int flag)

no contribution here

Specified by:

shallHandle in interface ProcessHandler

Parameters:

lastState - the consolidated decisions of previously asked listeners

element - the element that is questioned

flag - one of the values IProcessHandler.PUSH or IProcessHandler.POP

Returns:

See Also:

ProcessHandler.shallHandle(boolean, java.lang.Object, int)

shallInterrupt

public boolean shallInterrupt(boolean lastState)

no contribution here

Specified by:

shallInterrupt in interface ProcessHandler

Parameters:

lastState - the consolidated decisions of previously asked listeners

Returns:

if the process shall be interrupted based on the last state and the evaluation of the current element

See Also:

ProcessHandler.shallInterrupt(boolean)