Problem statement:--
I have a UI button "Perform"-- which will initiate a big background process in loop in a different thread sequentially. As soon the process is started the button text will be toggled to "Pause" Now on press of "Pause", I need to suspend the thread execution and "Resume" will finally notify to go ahead.
On button press"Perform",thread gets started, and button toggles to "Pause" and if I press Pause,thread is suspended.But I am not able to resume the running thread.If I check the Thread state in resume button press event, I get value=0 which is equivalent to NONe. Please help. Following is my code....
Blockquote
performBButton.addSelectionListener(new SelectionListener() {
@Override
public void widgetSelected(SelectionEvent e) {
Button btnToggle = (Button) e.getSource();
MyJob myJob = new MyJob();
if (btnToggle.getText().equalsIgnoreCase("Perform")) {
btnToggle.setText("Pause");
myJob.schedule();
}
else if (btnToggle.getText().equals("Pause")) {
buttonToggle.setText("Resume");
isPaused=!isPaused;
}
else if (btnToggle.getText().equals("Resume")) {
buttonToggle.setText("Pause");
isPaused=!isPaused;
synchronized (myJob) {
myJob.notify();
}
}
}
});
class MYJob extends Job{
public void run(IProgessMonito monitor) {
@Override
public void run() {
for (int i=0;i<50000;i++) {
System.out.println("Iteration "+i +isPaused);
synchronized (this) {
if (isPaused) {
wait();
}
}
}
Thread.sleep(1000);//I have removed try catch while pasting here
}
}
}
}
