JFace TableViewer get multiple selected rows - jface

Question

I want to add a listener to the select button which gets the multiple rows selected in the checklist tableviewer. It then proccedes to check those boxes.
My question is how do I get the list of rows selected in the tableviewer?
Here is the code for the table:
private void createCheckViewer(Composite parent){
tableViewer = CheckboxTableViewer.newCheckList(parent, SWT.MULTI| SWT.BORDER | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL);
if ( (GanttFrame.getListOfFunctionTasks()!= null)){
if (!(GanttFrame.getListOfFunctionTasks().isEmpty())){
// Data Rows
for (int i = 0; i < GanttFrame.getListOfFunctionTasks().size(); i++) {
tableViewer.add(GanttFrame.getListOfFunctionTasks().get(i));
GanttFrame.getListOfFunctionTasks().get(i).setCheckId(i);
}
}
}
// flow trace or function trace
String columnHeader;
if (TraceData.getFlowTraceFlag()){
columnHeader = "Flow Traces";
}else{
columnHeader = "Function Traces";
}
// define layout for the viewer
gridData = new GridData(SWT.FILL, SWT.TOP, true, false, 3, 1);
gridData.heightHint = 400;
tableViewer.getControl().setLayoutData(gridData);
tableViewer.addCheckStateListener(this.getCheckListListener());
final Table table = tableViewer.getTable();
TableLayout layout = new TableLayout();
TableViewerColumn col = new TableViewerColumn(tableViewer, SWT.LEAD);
col.getColumn().setText(columnHeader);
layout.addColumnData(new ColumnWeightData(500));
table.setLayout(layout);
table.setHeaderVisible(true);
table.setLinesVisible(true);
}

Answer 1

Use:
IStructuredSelection selection = (IStructuredSelection)tableViewer.getSelection();
You then have various choices for processing the selection:
Object [] selections = selection.toArray();
List<?> selections = selection.toList();
Iterator<?> iterator = selection.iterator();