public abstract class EmptyProgressMonitor extends Object implements ProgressMonitor
Could be used in scenarios when only some of the progress notifications are important and others can be ignored.
UNKNOWN
Constructor and Description |
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EmptyProgressMonitor() |
Modifier and Type | Method and Description |
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void |
beginTask(String title,
int totalWork)
Begin processing a single task.
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void |
endTask()
Finish the current task, so the next can begin.
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boolean |
isCancelled()
Check for user task cancellation.
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void |
start(int totalTasks)
Advise the monitor of the total number of subtasks.
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void |
update(int completed)
Denote that some work units have been completed.
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public void start(int totalTasks)
ProgressMonitor
This should be invoked at most once per progress monitor interface.
start
in interface ProgressMonitor
totalTasks
- the total number of tasks the caller will need to complete
their processing.public void beginTask(String title, int totalWork)
ProgressMonitor
beginTask
in interface ProgressMonitor
title
- title to describe the task. Callers should publish these as
stable string constants that implementations could match
against for translation support.totalWork
- total number of work units the application will perform;
ProgressMonitor.UNKNOWN
if it cannot be predicted in advance.public void update(int completed)
ProgressMonitor
This is an incremental update; if invoked once per work unit the correct
value for our argument is 1
, to indicate a single unit of
work has been finished by the caller.
update
in interface ProgressMonitor
completed
- the number of work units completed since the last call.public void endTask()
ProgressMonitor
endTask
in interface ProgressMonitor
public boolean isCancelled()
ProgressMonitor
isCancelled
in interface ProgressMonitor
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