How can we filter the table viewer in JFace based on the entered text - swt

Question

I have created a table using table viewer and now i need to filter based on the text entered in the text box so how can we filter the table the code to create table is as follows
TableViewerColumn message = new TableViewerColumn(viewer, SWT.NONE);
message.getColumn().setWidth(800);
message.getColumn().setText("Message");
message.setLabelProvider(new ColumnLabelProvider()
{
#Override
public void update(ViewerCell cell)
{
Object element = cell.getElement();
if(element instanceof MyObject)
{
MyObject obj = (MyObject) element;
cell.setText(obj.getMessage());
}
}
});
}
private static class MyObject
{
private String first;
private String second;
private String message;
public MyObject(String first, String second,String message)
{
this.first = first;
this.second = second;
this.message = message;
}
public String getFirst()
{
return first;
}
public void setFirst(String first)
{
this.first = first;
}
public String getSecond()
{
return second;
}
public void setSecond(String message)
{
this.second = second;
}
public String getMessage()
{
return message;
}
public void setMessage(String message)
{
this.message = message;
}
so now how can we filter the table. Please help me as I am new to jface table viewer

Answer 1

Use a class derived from ViewerFilter to add a filter:
class MyFilter extends ViewerFilter
{
#Override
public boolean select(Viewer viewer, Object parentElement, Object element)
{
MyObject obj = (MyObject)element;
// TODO return true to include the object, false to exclude
}
}
Add this to the table with:
viewer.addFilter(new MyFilter());
Call
viewer.refresh();
to get the viewer to rerun the filter when the text changes.