code: public void restoreState(IMemento memento) {
  		setMemberFilters(
  			new int[] {FILTER_FIELDS, FILTER_STATIC, FILTER_NONPUBLIC, FILTER_LOCALTYPES},
  			new boolean[] {
  				Boolean.valueOf(memento.getString(TAG_HIDEFIELDS)).booleanValue(),
  				Boolean.valueOf(memento.getString(TAG_HIDESTATIC)).booleanValue(),
  				Boolean.valueOf(memento.getString(TAG_HIDENONPUBLIC)).booleanValue(),
  				Boolean.valueOf(memento.getString(TAG_HIDELOCALTYPES)).booleanValue()
  			}, false);
  	}
docs: Restores the state of the filter actions from a memento.
  <p>
  Note: This method does not refresh the viewer.
  </p>
  @param memento the memento from which the state is restored