_encoderImplClassColumn = new TableColumn(_tblEncoderMappings, SWT.NONE);
_encoderImplClassColumn.setText("Implementation class");
_encoderImplClassColumn.setWidth((int)(tableWidth * 0.5));
_encoderMappingsModel = new EncoderMappingsModel(_model.getEncoderMappings());
_encoderMappingsModel.addListener(new BeanListTableModelListener() {
public void add(Object bean) {
_model.fireModelChanged();
}