Package net.ssehub.easy.basics.progress

Class BasicProgressObserver

java.lang.Object

net.ssehub.easy.basics.progress.ProgressObserver

net.ssehub.easy.basics.progress.BasicProgressObserver

public class BasicProgressObserver
extends ProgressObserver

A basic, eclipse-like progress observer.

Author:

Holger Eichelberger

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	BasicProgressObserver.IProgressMonitor	Simple progress monitor interface.
private static class	BasicProgressObserver.Task	Representation of a task, which will be observed by the BasicProgressObserver.IProgressMonitor.

Nested classes/interfaces inherited from class net.ssehub.easy.basics.progress.ProgressObserver

ProgressObserver.ISubtask, ProgressObserver.ITask

Field Summary

Fields

Modifier and Type	Field	Description
private BasicProgressObserver.IProgressMonitor	monitor
private BasicProgressObserver.Task	parent
private List<BasicProgressObserver.Task>	subtasks

Fields inherited from class net.ssehub.easy.basics.progress.ProgressObserver

NO_OBSERVER, NO_SUBTASK

Constructor Summary

Constructors

Constructor	Description
BasicProgressObserver()

Method Summary

Modifier and Type	Method	Description
void	notifyEnd(ProgressObserver.ITask task, ProgressObserver.ISubtask subtask)	Notifies about ending a (sub)task.
void	notifyProgress(ProgressObserver.ITask task, ProgressObserver.ISubtask subtask, int step, int max)	Notifies about processing a task or a subtask.
void	notifyStart(ProgressObserver.ITask task, ProgressObserver.ISubtask subtask, int max)	Notifies about starting a (sub)task.
void	register(BasicProgressObserver.IProgressMonitor monitor)	Sets the monitor to this progress observer.
ProgressObserver.ISubtask	registerSubtask(String subtask)	Registers a subtask to notify about processing progress.
ProgressObserver.ITask	registerTask(String task)	Registers a task for notify about processing progress.
void	unregister(BasicProgressObserver.IProgressMonitor monitor)	Sets this monitor to null if the current monitor is the same as the specified monitor.

Methods inherited from class net.ssehub.easy.basics.progress.ProgressObserver

notifyEnd, notifyProgress, notifyProgress, notifyProgress, notifyStart

Methods inherited from class java.lang.Object

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

Field Details

monitor

private BasicProgressObserver.IProgressMonitor monitor

parent

private BasicProgressObserver.Task parent

subtasks

private List<BasicProgressObserver.Task> subtasks

Constructor Details

BasicProgressObserver

public BasicProgressObserver()

Method Details

register

public void register(BasicProgressObserver.IProgressMonitor monitor)

Sets the monitor to this progress observer.
Overwrites already set monitors.

Parameters:

monitor - The monitor which should be added to this observer.

unregister

public void unregister(BasicProgressObserver.IProgressMonitor monitor)

Sets this monitor to null if the current monitor is the same as the specified monitor.

Parameters:

monitor - If the given monitor is the same monitor as the monitor of this observer instance the monitor of this observer will be set to null otherwise will nothing happen.

registerTask

public ProgressObserver.ITask registerTask(String task)

Description copied from class: ProgressObserver

Registers a task for notify about processing progress.

Specified by:

registerTask in class ProgressObserver

Parameters:

task - the name of the task

Returns:

the task identification

registerSubtask

public ProgressObserver.ISubtask registerSubtask(String subtask)

Description copied from class: ProgressObserver

Registers a subtask to notify about processing progress.

Specified by:

registerSubtask in class ProgressObserver

Parameters:

subtask - the name of the sub task

Returns:

the task identification

notifyStart

public void notifyStart(ProgressObserver.ITask task,
 ProgressObserver.ISubtask subtask,
 int max)

Description copied from class: ProgressObserver

Notifies about starting a (sub)task. Subtask notifications shall occur after task notifications, i.e. nested.

Specified by:

notifyStart in class ProgressObserver

Parameters:

task - the identification of task to notify about (initially use ProgressObserver.registerTask(String) for registering a task)

subtask - the subtask (may be ProgressObserver.NO_SUBTASK) (initially use ProgressObserver.registerSubtask(String) for registering a sub task)

max - the intended maximum steps of the subtask

notifyProgress

public void notifyProgress(ProgressObserver.ITask task,
 ProgressObserver.ISubtask subtask,
 int step,
 int max)

Description copied from class: ProgressObserver

Notifies about processing a task or a subtask.

Specified by:

notifyProgress in class ProgressObserver

Parameters:

task - the identification of the task to notify about (initially use ProgressObserver.registerTask(String) for registering a task)

subtask - the identification of the subtask (may be ProgressObserver.NO_SUBTASK, initially use ProgressObserver.registerSubtask(String) for registering a sub task)

step - the current step in 0<=step<=max

max - the maximum number of steps, ignored if negative and value from start notification is used instead

notifyEnd

public void notifyEnd(ProgressObserver.ITask task,
 ProgressObserver.ISubtask subtask)

Description copied from class: ProgressObserver

Notifies about ending a (sub)task. Subtask notifications shall occur before task notifications, i.e. correctly nested. Use the identifications returned by ProgressObserver.registerTask(String) and ProgressObserver.registerSubtask(String). This method shall implicitly unregister the given task and/or subtask.

Specified by:

notifyEnd in class ProgressObserver

Parameters:

task - the identification of the task which ends (initially use ProgressObserver.registerTask(String) for registering a task)

subtask - the identification of the subtask with task (may be ProgressObserver.NO_SUBTASK, if given, only the subtask is supposed to end, initially use ProgressObserver.registerSubtask(String) for registering a sub task)